Got dynoed today...

So I went and got the red sled dynoed today and I'm pissed!! Those numbers are horrible. They're below stock and I have an exhaust and CAI. Now granted I know the CAI is pretty much null on a dyno but still. 422!! The second pull barely got 400. WTF!? Any suggestions on what I should do?

I noticed the other day it took more than the usual amount of cranks for it to fire and then today it sounded like it had a little knock. I opened the hood and it looked like the motor was shaken a little more than usual, but I could have just been paranoid.

Should I just take it to the dealer? If so, what do I ask them to do?

Sorry the sheet is hard to read max HP was 422.9 and torque was 438.6. The second run was 407.6 and 427.1.

Jeff,

The first one is about right 507 FWHP and 526 FWTorque .The second around 488 and 512.Dynos vary greatly.I would bet the exhaust would only give you 10 RWHP anyway.Maybe the second run is a tad low but the knock may be causing the PCM to pull out timing.

all the later releaseed srt's are de-tuned, to avoid the clutch problem. Trust me i'm pissed too. With drop in hiflow filter, exhaust, and headers(shorties) i just dynoed at 420 and 440 as well. So that fact, the fact of a house in the near future, may be leading mine for sale! Just seems screwy- the later released ones are SLOWER

Hey Trev.Where did you get your Gibson Headers and exhaust ? I had them on my Denali.The distributer said Gibson didn`t make anything for the SRT-10.

mine has been cranking over funny lately also.it takes alot of cranks to start it sometimes.mine just has the magnaflow exhaust on it.ill have the dealer look at it when i do the 7500 mile service.i dont know how it should run .or the power im suspose to have.i would like to drive another one .if theres any one in san jose california cruise on by to my house and we can compare :D


eric

I don't like dyno's too much. Much rather take it to the strip and get some hard MPH numbers. ET can vary in too many ways, but MPH is more consistant and will reflect the power you're making.

422HP and 438TQ doesn't sound too far off though.

What was the temperature anyway? Wonder how much difference a chilly day would make?

I don't like dyno's too much. Much rather take it to the strip and get some hard MPH numbers. ET can vary in too many ways, but MPH is more consistant and will reflect the power you're making.

422HP and 438TQ doesn't sound too far off though.

What was the temperature anyway? Wonder how much difference a chilly day would make?

Before I believe the detune theory I would require some proof. To me that just don't make sence. Detune the truck 20hp & 30 #'s/toqure wow now that's really going to save the clutch. Come on guys that has to be total bull****. I know allot of people have said they have had clutch problems, but I have never had a problem works like a champ. Hell I am getting 2nd gear burns now. Boy if that's not a sign the clutch is working great I don't know what is..

anyway just my thoughts on the whole clutch thing

Before I believe the detune theory I would require some proof. To me that just don't make sence. Detune the truck 20hp & 30 #'s/toqure wow now that's really going to save the clutch. Come on guys that has to be total bull****. I know allot of people have said they have had clutch problems, but I have never had a problem works like a champ. Hell I am getting 2nd gear burns now. Boy if that's not a sign the clutch is working great I don't know what is..

anyway just my thoughts on the whole clutch thing

Here Here!!

Hey Trev.Where did you get your Gibson Headers and exhaust ? I had them on my Denali.The distributer said Gibson didn`t make anything for the SRT-10.


They used my truck to test fit their set of shorty headers- they should be out soon- Call Gibson them selves for a date.


As far as the detune theory, i agree it is just a theory, and i completely buy into it. I will be trying gears and having a Viper shop try to re tune if there is such a thing and see how it goes-, but it all makes sense to me, if you read back through alot of the posts, look at et's, mph's, rt's and dyno's ,now from two different dyno's. Even with the all that and seat of the pants ,... i buy it.

I'd be willing to bet even with my lack of exp.- consistent mid 14's ="s slower-
Also i'd be willing to bet if i had lets say for example 9's truck (no juice) ,he got in jan. or something i would tell, so would most of us. The clutch in our truck is rated at 380 ,i believe, why not detune to get close to that. Mind you I was under 400 twice with Magnaflow and under with the stock exhaust.
I mean i had a few good rt's and even after 7 pm the best was 14.3, which sounds like the temp. drop got me the 2 tenths.

So, if anyone has an offer for my truck, with Gibson headers, Gib exhaust, and an Airaid drop in high flow filter, stock exhaust and Magnaflow exh., I;m listening-

$3 dollars and 12 cents if you wash and wax it.

I'd be willing to bet even with my lack of exp.- consistent mid 14's ="s slower-
Also i'd be willing to bet if i had lets say for example 9's truck (no juice) ,he got in jan. or something i would tell, so would most of us. The clutch in our truck is rated at 380 ,i believe, why not detune to get close to that. Mind you I was under 400 twice with Magnaflow and under with the stock exhaust.
I mean i had a few good rt's and even after 7 pm the best was 14.3, which sounds like the temp. drop got me the 2 tenths.


R/T's (Reaction Times) have ABSOLUTELY NOTHING to do with 1/4 ET's. They mean nothing more than how long it took you to react when the light turned green.

ET's can vary quite a bit too, depending on the weather, track conditions, and especially the driver. If you bog or spin too much off the line. If you Granny shift, miss a gear, or just plain suck at shifting, etc. These 'little' things can change your ET +/- a full second, and then some, EASY!

You posted you ran a 14.3 - fine. Please add your 60' time, your 1/8 mile time and mph, along with the full 1/4 mph. Also add the weather conditions (temp., humidity) along with the track conditions (sticky, slippery).

Not that it's apples to apples, but I used to own a '93 Mustang Cobra that was supercharged. In the cool temps, say 60's with low humidity, it would turn 110 through the traps. But take it to the strip in the Summer heat and humidity (90+ degrees) and the best it would do was 105mph! That's just what the weather can do. My 60' times and shifting were basically the same. Add to that a less than ideal run, and you can see how slow it can make the truck seem.

So, if anyone has an offer for my truck, with Gibson headers, Gib exhaust, and an Airaid drop in high flow filter, stock exhaust and Magnaflow exh., I;m listening-

Dude you cant sell your baby!!!!??? :confused: Sell everything else and keep the truck. It just seems wrong for YOU not to have it. You seem to be such a fan of the truck. I know you want to get the house and all. There's gotta be a way to do both.

patrick

all the later releaseed srt's are de-tuned, to avoid the clutch problem.

I won't believe it until Dodge says they de-tuned them. If they did de-tune them before they were sold then Dodge would be looking at some lawsuits for claiming 500hp and 525 torque at the flywheel. Ford made that mistake a few years ago with the Cobra. Ford had to issue a recall to install some go-fast parts to bring the hp numbers back up to what they advertised.

I got my truck fresh off of the carrier back in May. I haven't offically run my truck at the track yet but I did use a G-Tech meter on the street. Bone stock I ran a 13.60 and a 13.40. I know these numbers aren't 100% accurate but the last time I ran the G-Tech at the track at the same time it was within .2 of the actual times. I am confident that my truck will be in the 13's as long as it's not a hot day.

Mike i agree, there are alot of variables in the #'s.I just believe there is something not right with a truck that should lose 15% from flywheel- 430 is the ballpark it should be at, give or take a few for dif. dynos, NOT 397!

Jack - how does 4.50 sound?

Jack - how does 4.50 sound?[/QUOTE]

No I can't go $4.50 But will you consider $61398.00?

I think i will counter offer you at 59500,......sounds good to me! whatcha think Jack?

I think i will counter offer you at 59500,......sounds good to me! whatcha think Jack?

Will you take a post dated money tree money order?

:D :D :D ........

I prefer milton Bradley money myself. Money orders take to long

On this detuning note. I have noticed 2 new stickers on my PCM. However I don,t feel my truck has been detuned. It will leave 8-10 feet of rubber from a 10 mph rolling start.

I did question the stickers a while back and 9 Seconds said it probably was just some minor tuning tweaks. But how do you really know. With all of the clucth issues arizzing there may be a flash out to lower the HP and torque.

If I take my truck back in for service I will definitely request they not hook mine up to the computer unless it's absolutely neccessary.

If they can flash the engine to "detune" it, isnt there a pcm programmer made by one of the 3rd party companies that can re-flash the pcm to whatever specs you want? Basically, is there anything like that for this 3rd gen viper engine yet?

roe racing has a vec2 (viper engine controller) which i am very interested in i believe" Boomer" has some info on it, maybe he will enlighten us!

I know someone else who feels your pain.
At Diesel thunder in Spokane Washington last weekend we dynoed a stock SRT-10 and he laid down 370RWHP!

Then our diesels started to Dyno..... let's just say this nice older gent went right across to the dealership to have a little chat about his HP numbers.

Our highest horse dodge made 750 RWHP

I spit my trans out at 430 RWHP, but a full boogie trans is being installed sept 14th in time for PDR dyno days and Randy's off road event!

I see torquefreeks is having a dyno day in portland that weekend as well.

PS ever see a 10 second street legal cummins?
look here
http://bhaner.com/videos/DT8_28_04/fletcher.avi

On this detuning note. I have noticed 2 new stickers on my PCM. However I don,t feel my truck has been detuned. It will leave 8-10 feet of rubber from a 10 mph rolling start.

I did question the stickers a while back and 9 Seconds said it probably was just some minor tuning tweaks. But how do you really know. With all of the clucth issues arizzing there may be a flash out to lower the HP and torque.

If I take my truck back in for service I will definitely request they not hook mine up to the computer unless it's absolutely neccessary.

The Detune theory is total bull****.. I realize the dyno on trvs truck looks bad but I would question a few other things before the "detune" theory came up.

For 1 I really don't think the short headders will benifit this truck what so ever. If anything it's possible he lost power.. I just left the dodge dealer where I bought the truck. They sell allot of Vipers they have 3 SRT-10 on the lot. Where other dealers couldn't get one if they wanted. So with that in mind
they have a good repour with dodge. Anyway I talked to the viper mech while he was trouble shooting my electrical short problem. I checked out the computer they use to tune/diagnose vipers with.. I asked him if dodge was detuning the SRT -10 ram's because of clutch problems, he laughed and said where did you get that idea. So I told him my thoughts he said, well I can assure you detuning a viper motor to spare a clutch is not the wat to go about it.

Sorry in advanced, this issue just pisses me off..

The Detune theory is total bull****.. I agree
I really don't think the short headders will benifit this truck what so ever.I agree
detuning a viper motor to spare a clutch is not the wat to go about it. I agree
this issue just pisses me off.. I agr.....well, I'm not pissed.;)

what dodge needs to do is put a heavy duty clutch in there.

Heck you add 2000lbs. and expect the viper clutch to work? C'mon Dodge. Do it right and fix these for FREE!

Dynoed today at WestCoast viper (DynoJet) with my SRT-10 PU, stepped headers, Hi flow cats, and catback, all the rest stock, heat soaked motor, 96 degree day, very rich 11.2 to 1........... 450.17 RWHP 471 RWTQ.

Impressive numbers, congrats :D

Dynoed today at WestCoast viper (DynoJet) with my SRT-10 PU, stepped headers, Hi flow cats, and catback, all the rest stock, heat soaked motor, 96 degree day, very rich 11.2 to 1........... 450.17 RWHP 471 RWTQ.


Were those SAE corrected numbers?

I,m trying to post my dyno, but apparently the File is too big?? What gives?
This is a simple graph chart??

Welll I can't figure out how to post the dyno print out so here are the numbers.

426 HP
451 Torque

SAE corrected numbers

My Mods:
1. Removed down stream cats
2. Magnaflo Muffler (stock 2.5" pipes)

At a 20% drive train loss the numbers are where I would expect. Especially with the 22" wheels.

I'm satisfied that DC has supplied what they stated!!! 500 HP at the crank!

I will post the Dyno when I fugure out how to!!

:rolleyes: When mine was stock.....
NO mods.
91 octane
Temp. 76
417rwhp.
438rwtq.
this was the worst of three pulls :cool:
J.J;-)

Were those SAE corrected numbers?

Yes they were SAE corrected #'s
.......Jack

Well here it is! Hope it works

here is a pic of my latest dyno

here is a pic of my latest dyno
Good #`s.What mods do you have.You might have told us but I can`t find it.

Which are the trucks that theory has are detuned? Mine was bought in July. I have had it to the drag strip once. Best 13.7 at 104.4mph treeeible 60 foot time. I kept it in 3rd and was near redline across the stripe. Track is closed for the season. Next time I am going to short shift and try 4th. Does this sould like the performance you are getting stock. tires were at 38 psi :confused:

Which are the trucks that theory has are detuned? Mine was bought in July. I have had it to the drag strip once. Best 13.7 at 104.4mph treeeible 60 foot time. I kept it in 3rd and was near redline across the stripe. Track is closed for the season. Next time I am going to short shift and try 4th. Does this sould like the performance you are getting stock. tires were at 38 psi :confused:

Those are almost identical to mine when I first ran it stock. My 60' times were 2.30's. This was at Carlsbad before they closed. The traction there was just awful. After lowering rear 2" the 60' times dropped to low 2.20's. Still not good. Doing some mods so mine has not run since August. Good luck & have fun......Jack

Those are almost identical to mine when I first ran it stock. My 60' times were 2.30's. This was at Carlsbad before they closed. The traction there was just awful. After lowering rear 2" the 60' times dropped to low 2.20's. Still not good. Doing some mods so mine has not run since August. Good luck & have fun......Jack

The last time they put any traction juice on the track at Carlsbad was probably around 1972. It was fun though. You could run again and again as fast as you could get back to the staging lanes. I was sorry to hear that they bulldozed it.

Have you heard any news about the new track in Beaumont? I heard construction is behind schedule.

Does the SDPD still hold 1/8th mile drags at the Murph or Qualcomm or whatever they call the stadium these days?

just turned 1k mile on my 04 ram srt10 only thing added is k&n cai kit max hp was 432 torque 480

just turned 1k mile on my 04 ram srt10 only thing added is k&n cai kit max hp was 432 torque 480


Looking good dude!!!


patrick

Something that I heard this past weekend was that RC's don't have tow rating,and QC's do (7500 lbs).This is possible by the change in the cam for towing puposes.I do know for fact that my times at Moroso were 14.01 and 14.24.I also know for fact that the HP rating of the engine is at the crank and there's approximately a 20 % loss at the rear wheels.Thus RWHP & RWTQ from dyno's.

This is possible by the change in the cam for towing puposes.

I don't think so. It's not the cam.

I think they got the rating because they have an automatic which is heavy duty taken from the 5.9 cummins. The engines are exactly the same as the single cab but with the auto trans and PCM programming, it makes it a SRT that can tow, without voiding the warranty.

Didn't Hennessy get mid 13s with his quad which was basically stock? I know he now has a shift kit for the trans but it is pretty steep in price. I would like to know what it consists of since the quads shift early from what I hear.

Site :cool:

Drifter,mineQC definately shifts too fast for my liking!I'm into 3rd gear by the time I'm through the intersection!If I remember correctly,into 2nd at 10mph,3rd at 25.That's way to early for me.

6pak

look into the tranny short shifting. I bet if you were able to wind out the sucker, you would be in the 13s with ease.


Site :cool:

Well,just got back from Indy on the dyno runs. I am just running a sample tune on the VEC 2 from Roe Racing .We have not had a chance to work on a tune with getting the car done.

Results were 448 RWHP and 505 Torque.

Not too good but there is a lot of potential since it is basically a generic tune. A good tune should get an easy 50 HP.I need to fab up a CAI too .That could get 5-7 hp.Doing the above should get 500+HP.

Well ,I`ll dyno again once I figure it all out.I was really hoping for 480 RWHP on this run. :(

These are SAE corrected #`s.

The last time they put any traction juice on the track at Carlsbad was probably around 1972. It was fun though. You could run again and again as fast as you could get back to the staging lanes. I was sorry to hear that they bulldozed it.

Have you heard any news about the new track in Beaumont? I heard construction is behind schedule.

Does the SDPD still hold 1/8th mile drags at the Murph or Qualcomm or whatever they call the stadium these days?

Carlsbad had no traction or juice for traction. Oil downs were frequent as the VW boys ran there a lot. Oil downs slowed things down a lot and in a 5-6 hour period you might get 4 passes in.

The track in Beaumont/Banning is supposed to happen but the have not broken ground yet. Although they do have the street up to the property completed. We shall see. Right now we have Fontana, Palmdale, Pomona and Bakersfield. All over 100 miles away. San Diego sure needs a good 1/4 mile drag strip.

Qualcomm runs when they have money but that is not often lately. I do not like 1/8 mile that much, so have I never have run there.

Well,just got back from Indy on the dyno runs. I am just running a sample tune on the VEC 2 from Roe Racing .We have not had a chance to work on a tune with getting the car done.

Results were 448 RWHP and 505 Torque.

Not too good but there is a lot of potential since it is basically a generic tune. A good tune should get an easy 50 HP.I need to fab up a CAI too .That could get 5-7 hp.Doing the above should get 500+HP.

Well ,I`ll dyno again once I figure it all out.I was really hoping for 480 RWHP on this run. :(

These are SAE corrected #`s.

Those numbers look exactly like mine did with out the K&N. Having another tune and dyno session on Tuesday, will post results.

I'm sure i missed it, but how many people have dyno'd a quadcab? With the auto tranny do we lose more than 20%?

I'm sure i missed it, but how many people have dyno'd a quadcab? With the auto tranny do we lose more than 20%?

I dyno'd mine with K&N CAI, no cats, 02 sims, stock muffler and resonator, and VEC 2. Got 450HP and 476 TQ.

i dynoed my truck saturday and got 510hp and 639 pounds of tq at the wheels but it's only a little stock 8 cylinder 5.7 hemi on nitrous

i dynoed my truck saturday and got 510hp and 639 pounds of tq at the wheels but it's only a little stock 8 cylinder 5.7 hemi on nitrous

Man you must be running a 300 shot!!!!!!!!!

Yeah ! and if so he may not be dynoing many more times with those stock pistons!!!! :eek:

Man you must be running a 300 shot!!!!!!!!!

it was a 175hp shot 67nitrous 35fuel jet.....i did have the bottle pressure at 1100psi a little high so it might of = a 200hp shot..... without the juice i dynoed 311hp at the wheels ........thats how i got 510hp and 639 pounds of tq .....nitrous gives big tq numbers......

holy crap do you have some kind of factory freak hemi or what? My hemi didn't come CLOSE to those numbers....

Tom,Just wondering if your HP and TQ #`s were RWHP or at the motor?

Impressive to say the least. Do you by chance have copies of the runs that you can post? I'm not asking because I doubt you, but I am curious on how the curves look. Have to imagine that when the nitrios comes on the curve really climbs fast. Kind of like a brick wall. :D

I used to have a Datsun 260Z that was turbocharged. It dyno'd at around 450hp and when the boost came on it had one hell of a spike. Also on the street it felt like God kicked it in the ass.

I do like your comment, "but it's only a little stock 8 cylinder 5.7 hemi on nitrous". ;) Maybe I need to look up the definition of "Stock" in the dictionary again. :rolleyes:

Have fun.

Impressive to say the least. Do you by chance have copies of the runs that you can post? I'm not asking because I doubt you, but I am curious on how the curves look. Have to imagine that when the nitrios comes on the curve really climbs fast. Kind of like a brick wall. :D

I used to have a Datsun 260Z that was turbocharged. It dyno'd at around 450hp and when the boost came on it had one hell of a spike. Also on the street it felt like God kicked it in the ass.

I do like your comment, "but it's only a little stock 8 cylinder 5.7 hemi on nitrous". ;) Maybe I need to look up the definition of "Stock" in the dictionary again. :rolleyes:

Have fun.


i will post the dyno sheet in a few min.........i think i could of seen more power if the a/f was not so lean at 4000rpm a/f was 14.2 then at 5300 a/f was 12.4 i also think the computer started pulling timing at 4400rpm because then i started losing power till 5300rpm it could be detination from being to lean or the 93 gas that i was running

i was also running the stock muffler because the dyno shop would not let me take it off so that also cost me a few

I do like your comment, "but it's only a little stock 8 cylinder 5.7 hemi on nitrous". Maybe I need to look up the definition of "Stock" in the dictionary again.



motor is stock but i do have a homemade cold air intake........no headers no boltons never opened factory stock

try this link for the dyno sheet......i think next time at the dyno i will put in some 100oct gas and a bigger fuel jet to be safe ......the tune i have was no too good this was on a dyno jet dyno

http://home.comcast.net/~dhinckle/HEMI777_DYNO/HEMI777DYNO.jpg

The guy is for real.....I have been watching his progress for quite a while on other forums....

patrick

The guy is for real.....I have been watching his progress for quite a while on other forums....

patrick

Me too Patrick, I just wonder how much the Hemi can take? I guess we will see. ;)

Tom,Just wondering if your HP and TQ #`s were RWHP or at the motor?

Rokt - those were flywheel numbers from when it was bench tested after the rebuild. Back in the truck with all the accessories bolted up etc it laid down 434hp and 471 ft/lbs but she was fairly warm on all those runs.

I have some new tricks under my sleeve I'm testing and I do beleive the next step is going to be over 600 rwhp and tq in the 700 range...

I'm still trying to convince Boomer to come down to Atl to lend a hand on the final install and tune ;)

Time to update my siggy.

Cool Tom.I was wondering how you got those #`s on a balanced and blueprinted motor with stock internals...I feel better now. :D