1/4 mile ET improvement prediction [Archive] - Dodge Ram SRT-10 Forum

: 1/4 mile ET improvement prediction


9 seconds
04-14-2004, 12:48 PM
Post your thoughts here. How much time do you predict will be reduced with each of the following mods and how much combined?

1) 220# weight loss (tailgate, spare, jack, sub)
2) 140# wheel/tire weight loss (Aluminum wheels/slicks and skinnies)
3) 0.4 second reduction in 60 ft.
4) 225 to 250 additional flywheel horsepower (exhaust, intake, N20 or supercharger)

My guess
1) 0.2 seconds
2) 0.2 seconds
3) 0.7 seconds
4) 1.0 seconds
Combined 2.0 seconds

Agree? Dissagree? Discussion?

Steve

trev17
04-14-2004, 03:04 PM
9, -
please help . being that im not that engine savvy, help explain what ur talking about with the 220#, and 140# weight loss im assuming one is swapping rear tires and or spare . yet im alittle lost. also 225 flywheel power??? im supposed to take delivery of mine fri.,sat. can all this be done immediately? help me out , grately appreciated - trev - S.D.

Hamrhead
04-14-2004, 04:07 PM
Pretty sure he means a 225hp shot of juice. (Nitrous Oxide ;) ) :cool:


If everything goes as planned (traction, not missing a gear, clutch slip etc), my guess would be at least 11's.

At any rate, it definitely sounds like a fun plan!

9 seconds
04-14-2004, 04:10 PM
Pretty sure he means a 225hp shot of juice. (Nitrous Oxide ;) ) :cool: Most of it. I figured a little extra for exhaust, intake, and engine management (VEC-2 or AEM unit) mods. Could be 250.

Trev17, I cleaned up the original message a little. May be more clear now.

Mofo
04-14-2004, 04:32 PM
Hay steve, Are you going to have any tires when you try it with the juice?
We tried some 18" on mine and they clear the brakes,but the only
tire to fit so far (for traction) are the Nitto drag radials. Mofo

hemi777
04-14-2004, 06:08 PM
put slicks on it with all the other mods and your in the low 11s high 10s easy .....i have a nitrous express kit 150hp on the way from jegs for my hemi truck that should take my 13.71 at99mph time and and get me well in the 12s with my little motor

hemi777
04-14-2004, 06:17 PM
phoenix......makes a 16inch drag slick....i know that the 16inch wheel wont fit but if you put on rotors from a 2001 dodge truck then the 16 inch wheels will fit............2001 dodge rams have 16 inch wheels the rotors shouldnt cost that much .....i might be doing this to my truck so i can spray off the line and lay the meat to the ground at the track

Hersbird
04-14-2004, 08:35 PM
If you can get the rotors and calipers off a 2001 Ram to fit then 15" slicks and rims would be the way to go. I've been thinking of switching to 18" rims all the way around but I want something wider then the standard 8" everybody seems to make. The L gets the 18x9.5 which is what I'm really looking for but I can't find a nice priced low weight version (like the centerlines) in a 5x5.5" pattern. If the L owners really are trying to be helpful as they claim, then find out waht the older Ford guys with the 5x5.5 pattern use for wide 18" rims. My guess is they probably just use the 15's and 16's instead of 18's.

9 seconds
04-14-2004, 08:46 PM
I will soon have some slicks, 16", but will need to make some brake mods. To change the brake caliper mounting bracket on the SRT-10, you have to pull the axles out. I'm hoping an adapter that uses the factory caliper mounting position will allow a 13" rotor and smaller caliper to be mounted.

hemi777
04-14-2004, 08:57 PM
9 seconds.......it will be well worth it

Hemi57
04-14-2004, 09:13 PM
i think your guess is pretty good as long as you dont shift too slow and lose time from that

trev17
04-14-2004, 10:22 PM
thank u guys for your input and clarification. i need it! not to bright sometimes. anny way my next q , is engine management. i am assuming you mean a chip and/or programmer ... right? if i am right who makes them? also how risky is nitrous in all reality. if anyone has the time please walk me through the in's and out's of juice. preciate it

D Davis
04-15-2004, 03:43 AM
If you can get the rotors and calipers off a 2001 Ram to fit then 15" slicks and rims would be the way to go. I've been thinking of switching to 18" rims all the way around but I want something wider then the standard 8" everybody seems to make. The L gets the 18x9.5 which is what I'm really looking for but I can't find a nice priced low weight version (like the centerlines) in a 5x5.5" pattern. If the L owners really are trying to be helpful as they claim, then find out waht the older Ford guys with the 5x5.5 pattern use for wide 18" rims. My guess is they probably just use the 15's and 16's instead of 18's.


Unfortunitly for everyone, you guessed right. All the Ls w/slicks are running 16in rims in back or grinding the rear calipers to fit 15in rims. either one opens up a world of choice.
for 18s it's pretty much the 305x45-18 Nitto drag radials :(

TheOtherDodge
04-15-2004, 08:16 AM
The weight savings will be a great addition! As for everything else, it's hard to say, but looking forward to seeing your results! :D

Wikdsvt
04-15-2004, 11:17 AM
traction is going to the problem.

Even if you have a slick on the rear, the rear axle will twist and could result in the driveshaft binding. that is why most tracks have a rule if you run slicks you need to have traction bars.

once you get up to speed (1/2 doen track) areodnamics is the biggest factor. Lets face it we truck drivers are driving a brick wall aerodynamically down the track.
(fold in side mirror)(try it with tonneau cover on and off)(try it with tailgate up and down) figure out what works best.

I'm not sure if you will pick up 2 seconds. again aerodynamics kill trucks.
You will definitely pick up a second. most likely 1.5 seconds.

I know the srt has a factory type traction bar, but the rear end will still twist a little. (known as axle wrap) I think that would be my main concern about running low 12's.

also some tracks require a roll cage if you run faster than 11.99 others are 11.49.

keep us posted

John Hennessey
04-15-2004, 02:45 PM
What was the stock baseline - 13.4 @ 106?

With your mods, a 2.0 short time and a clutch that will hold the torque, you should be a low 12 maybe a high 11 at 115-118 mph would be my guess. Good luck with it!

Toe
04-15-2004, 05:27 PM
Doesn't the srt-10 come with traction bars built right in? Thought I saw them when I was drooling over one at my local autoshow.

hemi777
04-15-2004, 06:07 PM
9 seconds........dont forget about the grill mod its worth a few mph in the 1/4 mile and very easy to do.....its only a track trick but it works ....i made mine out of clear lexan plastic 4 pieces and installed then on the inside of the grill when the hood is closed no one can see them .....they help with the aerodynamics....the air will go around the truck instead of in the hood and under the truck......this mod helped my 03 slt hemi longbed run 99mph in the 1/4 mile... how many other hemi trucks run that without juice or headers

thats just one of the mods that helped me run 13.71 at 99mph

well worth doing

BOOMER
04-16-2004, 07:18 AM
9 seconds........dont forget about the grill mod its worth a few mph in the 1/4 mile and very easy to do.....its only a track trick but it works ....i made mine out of clear lexan plastic 4 pieces and installed then on the inside of the grill when the hood is closed no one can see them .....they help with the aerodynamics....the air will go around the truck instead of in the hood and under the truck......this mod helped my 03 slt hemi longbed run 99mph in the 1/4 mile... how many other hemi trucks run that without juice or headers

thats just one of the mods that helped me run 13.71 at 99mph

well worth doing
SHOW US PLEASE!

Toe
04-16-2004, 10:14 AM
Wouldn't you get the same results by inserting some of those grill covers you can by at the aftermarket places?

tliss
04-16-2004, 07:48 PM
From the one SRT that I have seen go down the track, I would say some major frame stabilization is in order, including traction bars. The bed on that thing on burnout and launch moved around so much I would have sworn it was about to blow off the truck. When I see something like that, it worries me...that could be murder on the drive shaft and rear end, IMO.

Tom

hemi777
04-16-2004, 08:16 PM
Wouldn't you get the same results by inserting some of those grill covers you can by at the aftermarket places?

if they fit right then go for it ....i dont know where you can get them.....if you use the clear lexan there invisible to everyone and only cost a few bucks to make....very good mod for dodge trucks... more mph in the 1/4 mile

Hemi57
04-16-2004, 09:31 PM
12.71 eh 9 seconds? guess you are getting close, adding the nitrous will be close to your 2 sec prediction

sixpipes
04-17-2004, 01:29 PM
put slicks on it with all the other mods and your in the low 11s high 10s easy .....

You can't be serious. http://www.talonclub.com/forum/images/smilies/rofl2.gif

hemi777
04-17-2004, 03:45 PM
You can't be serious. http://www.talonclub.com/forum/images/smilies/rofl2.gif

that truck is well in the 12s mostly stock... add 225-250hp of juice and slicks and its well in the 11s or better......

sixpipes......you must have a problem reading.... in my post i said with all the mods and slicks.....heres my post again.....read it... some people are just dumb

put slicks on it with all the other mods and your in the low 11s high 10s easy .....i have a nitrous express kit 150hp on the way from jegs for my hemi truck that should take my 13.71 at99mph time and and get me well in the 12s with my little motor

sixpipes
04-17-2004, 04:15 PM
low 11s high 10s easy .....

Let's not resort to calling me dumb just because I don't agree with you. Reality is, I saw a Viper at Ennis, TX about a month ago that ran high 11's no juice. He then ran off a 10.89 on juice. This guy was making some serious horsepower. We're talking Viper (~3,000 lbs and pretty dang aerodynamic). Now we're talking about a 5,000 lb truck shaped like a brick with a nightmare of a transmission to shift quickly and he is going to run low 11s high 10s easy?

I think it's an insult to all the guys that bust their hump to get that next 1/10 second in the 1/4 to suggest that all you have to do is throw on some slicks, take off a little weight, and add the juice and you're in the low 11s high 10s easy. For one thing, the stock drive trane would never hold up to that kind of power. You may not agree with me, but anyone who has any real racing experience knows that your statement really is laughable. :cool:

sixpipes
04-17-2004, 05:21 PM
And I don't think you're dumb either. Just misinformed. ;)

Hersbird
04-17-2004, 05:50 PM
I'm not sure why you think the drivetrain may not stand up. It's the same as a Viper. I don't know why a SRT-10 is a nightmare to shift, when it's the same transmission as a Viper (actually it's not like a road race, you only have to shift twice). The only thing different in the drivetrain is the rear axle, and personally I think the Dana 60 in the Ram is probably stronger then the Viper axle. The Dana 60 worked just fine on cars weighing about what the SRT-10 does, but they had "super track pack" 4.11 gears, a 4 speed manual, and a 426 Hemi. I remember all the talk back in 1968 about how bullitproof the Dana 60 was.

So look at what the truck is running right now, 12.7's, so hopefully he'll get another 1.5 secs. Break it down, and first the 22" wheels are killing this truck. It's high rotating mass, and it's about as far away from the center of the hub as possible, which is just wrong for drag racing. There is probably .3-.5 sec in lightweight wheels alone, not counting anything like slicks. Now add some sticky tires and I'm sure you could launch a lot harder and pick up another .3-.5 secs. So lets use the more conservative numbers of .3+.3 and that means a 150 HP shot is going to make up the other .9 sec to make the goal... If you use a 225 HP shot then it sounds easy to me!

PS, I wouldn't call out Hemi777's racing experience... He has a long bed Ram running 13.7 on $100 in mods.

sixpipes
04-17-2004, 06:30 PM
I'm not questioning so much his racing experience, but his knowledge of what it takes to get to low 11s high 10s. I've seen what it takes to get the Lightning there and I can tell you, it's a hell of a lot harder than losing a little weight and adding juice. As far as the drive train dependability, we shall see. Pushing the SRT-10 down the track takes a lot more strength than pushing a Viper.


You guys talk like 1.5 seconds is nothing, there is a huge difference from 12.7 to low 11s. I'm not saying someone is not going to spend the the money it takes to accomplish it, just ain't going to happen as easy as you guys seem to think. :cool:

hemi777
04-17-2004, 07:18 PM
Let's not resort to calling me dumb just because I don't agree with you. Reality is, I saw a Viper at Ennis, TX about a month ago that ran high 11's no juice. He then ran off a 10.89 on juice. This guy was making some serious horsepower. We're talking Viper (~3,000 lbs and pretty dang aerodynamic). Now we're talking about a 5,000 lb truck shaped like a brick with a nightmare of a transmission to shift quickly and he is going to run low 11s high 10s easy?

I think it's an insult to all the guys that bust their hump to get that next 1/10 second in the 1/4 to suggest that all you have to do is throw on some slicks, take off a little weight, and add the juice and you're in the low 11s high 10s easy. For one thing, the stock drive trane would never hold up to that kind of power. You may not agree with me, but anyone who has any real racing experience knows that your statement really is laughable. :cool:

time will tell.....we will see whos wrong ...give him time to get the mods on his truck

hemi777
04-17-2004, 07:26 PM
I'm not questioning so much his racing experience, but his knowledge of what it takes to get to low 11s high 10s

i have been dragracing for over 20 years ....been low 10s in my camaro... 11s in my trans am.......8.40s at 160mph on my drag bike with a 1498 stroker motor.....so i know what it takes to run low 11s-high 10s

sixpipes
04-17-2004, 08:13 PM
Then you should know better. :cool:

sixpipes
04-19-2004, 09:44 AM
Looks like this thread is staying on topic one way or the other. :D Guys, I am not trying to start a bunch of crap here. 9 seconds asked for opinions and I gave mine. If you think that makes me dumb, so be it, but I stand by my original opinion. Low 11s high 10s is not easy, especially in a Dodge SRT-10 with stock drive trane. You can play internet fantasy games all you want, but it ain't going to happen IMHO. :cool:

9 seconds
04-19-2004, 09:58 AM
Please continue the SS discussion. I moved those posts to a thread in "Off Topic".

Marc T
05-14-2004, 07:18 PM
9 Seconds

What do you think putting 4:56 gears would do to the times??

9 seconds
05-14-2004, 08:13 PM
I think it would help with mild mods and stock wheel size. As it is, you shift to 4th right before the end of the 1/4. I would like to cross at around 5200-5300 in 4th. Thats right at 107 - 109 mph (perfect) with 4.56 gears. If you make more power, then you are good to 124 mph (6000 rpm in 4th). Tire availability is the only drawback I can see if you mod. That is tires than will stick. You could light the tires at will on the street.