Got dynoed today...

13039 Views 64 Replies 29 Participants Last post by Roktman, Mar 29, 2005

SRTFirefighter

Discussion Starter · Aug 26, 2004

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.

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Roktman

· #2 · Aug 27, 2004 (Edited)

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.

trev17

· #3 · Aug 27, 2004

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

Roktman

· #4 · Aug 27, 2004

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.

gto19

· #5 · Aug 27, 2004

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

eric

Hamrhead

· #6 · Aug 27, 2004

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?

Titan

· #7 · Aug 28, 2004

Hamrhead said:
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 bullshit. 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

Marc T

· #8 · Aug 28, 2004

Titan said:
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 bullshit. 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!!

trev17

· #9 · Aug 28, 2004

Roktman said:
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-

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fstjack

· #10 · Aug 28, 2004

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

04 Ram SRT-10 #593, Silver, Under construction..........BE AFRAID, BE VERY AFRAID

My other hot rod is a Chevy
1969 Chevelle B/GS, STREET driven a little***it's got current plates

, BBC, Enderle Bird Injected, 671 Blower-billet rotors and stripped. alum heads, Brooks aluminum rods, Roller everything , 9", Willwood 4 puck on all 4 corners, Tubbed, TH400 w/brake, Chance converter, 33/16/15SS M/T ET DRAG, still on gas, Bad A$$.

05 Chevy 3500 Silverado LT Crew Cab, Dually, Duramax, Allison, Foose Spank Wheels, Michelin, Edge Juice W/Attitude, Magnaflow, Valentine 1, Sirius Sat, Amp Electric Boards, Truxedo Lo-Pro, & more.

04 Ranger XLT 4dr XC, 3.0 Auto, Parts runner for the Dodge/Chevelle, Sirius Sat. Valentine 1,
Magnaflow, Bilsteins, Centerlines, Rangers have the most unconfortable seats in the world.

25' Sea Ray set up to fish
19' Sea Ray, SBC, bowrider for fun

Hamrhead

· #11 · Aug 28, 2004

trev17 said:
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.

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mauiSRT/10

· #12 · Aug 28, 2004

trev17 said:
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!!!!???

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

Stingray

· #13 · Aug 28, 2004

trev17 said:
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.

trev17

· #14 · Aug 28, 2004

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?

fstjack

· #15 · Aug 29, 2004

Jack - how does 4.50 sound?[/QUOTE]

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

04 Ram SRT-10 #593, Silver, Under construction..........BE AFRAID, BE VERY AFRAID

My other hot rod is a Chevy
1969 Chevelle B/GS, STREET driven a little***it's got current plates

, BBC, Enderle Bird Injected, 671 Blower-billet rotors and stripped. alum heads, Brooks aluminum rods, Roller everything , 9", Willwood 4 puck on all 4 corners, Tubbed, TH400 w/brake, Chance converter, 33/16/15SS M/T ET DRAG, still on gas, Bad A$$.

05 Chevy 3500 Silverado LT Crew Cab, Dually, Duramax, Allison, Foose Spank Wheels, Michelin, Edge Juice W/Attitude, Magnaflow, Valentine 1, Sirius Sat, Amp Electric Boards, Truxedo Lo-Pro, & more.

04 Ranger XLT 4dr XC, 3.0 Auto, Parts runner for the Dodge/Chevelle, Sirius Sat. Valentine 1,
Magnaflow, Bilsteins, Centerlines, Rangers have the most unconfortable seats in the world.

25' Sea Ray set up to fish
19' Sea Ray, SBC, bowrider for fun

trev17

· #16 · Aug 29, 2004

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

fstjack

· #17 · Aug 29, 2004

trev17 said:
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?

04 Ram SRT-10 #593, Silver, Under construction..........BE AFRAID, BE VERY AFRAID

My other hot rod is a Chevy
1969 Chevelle B/GS, STREET driven a little***it's got current plates

, BBC, Enderle Bird Injected, 671 Blower-billet rotors and stripped. alum heads, Brooks aluminum rods, Roller everything , 9", Willwood 4 puck on all 4 corners, Tubbed, TH400 w/brake, Chance converter, 33/16/15SS M/T ET DRAG, still on gas, Bad A$$.

05 Chevy 3500 Silverado LT Crew Cab, Dually, Duramax, Allison, Foose Spank Wheels, Michelin, Edge Juice W/Attitude, Magnaflow, Valentine 1, Sirius Sat, Amp Electric Boards, Truxedo Lo-Pro, & more.

04 Ranger XLT 4dr XC, 3.0 Auto, Parts runner for the Dodge/Chevelle, Sirius Sat. Valentine 1,
Magnaflow, Bilsteins, Centerlines, Rangers have the most unconfortable seats in the world.

25' Sea Ray set up to fish
19' Sea Ray, SBC, bowrider for fun

Roktman

· #18 · Aug 29, 2004

........

trev17

· #19 · Aug 29, 2004

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

Marc T

· #20 · Aug 29, 2004

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.

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