Approx. 1/4 mile Times w/Sr20det

Post by **Siddhartha** » Fri Dec 05, 2003 9:59 am

Ok.

Low 1/4 mile times don't equal high horsepower, and high horsepower doesn't equal a low ET. What a low ET DOES equal is traction.

High horsepower + traction + good driver = VERY low ET

There, the low ET equation. Big slicks, an LSD, and a good driver can often yield lower ETs than oodles of HP. Now, you do have to have power to make low ETs, just not as much as people think.

Post by **GTS4-R** » Fri Dec 05, 2003 9:59 am

(DELETED)

Post by **Jsquared** » Fri Dec 05, 2003 9:59 am

yeah, lower ET is helped most by traction, a better measure of power is to compare the trap speed with the ET...

Post by **240SXer** » Fri Dec 05, 2003 9:59 am

Better traction will give you a good ET with a low Trap though. Poor traction will give you a higher trap with the same ET

Post by **DriFt3r** » Fri Dec 05, 2003 9:59 am

how about 99 mph and 15.0 sec 1/4 mile

Post by **f150intally** » Fri Dec 05, 2003 9:59 am

240SXer wrote:Better traction will give you a good ET with a low Trap though. Poor traction will give you a higher trap with the same ET

You will not get the same ET with poor traction. With our cars on only 240-250whp, the 60 ft time basically determines the 1/4 mile ET. By knocking 4 tenths off of my 60 ft, I took off .90 seconds in the 1/4.

Download this software GTech Pass I think you have to reboot after installing.

Open these files with it in compare mode:GTech Passes Let me know if the links don't work.

Literally, the only differences between these to runs was street tires vs. Drag Radials. Notice the 60 ft times between the two passes. I have more runs if you want to see them.

We're guessing my car will run a sub 13 second with LSD and Drag Radials on 14lbs of boost.

- Jay

Post by **240SXer** » Fri Dec 05, 2003 9:59 am

What I was saying is that if I run a 13.8 with a 2.5 60ft my trap is going to be a lot higher than if I ran a 13.8 with a 2.0 60ft. Those .5 will have to be made up somewhere. Obviously the car would have to accelerate a lot harder on the top which will make it trap higher.

I've ran 13.8@102mph, and 14.2@103mph obviously on the 14.2 I got a sucky launch......

Post by **f150intally** » Fri Dec 05, 2003 9:59 am

That wasn't clear to me in what you wrote before. Sorry.-Jay

Post by **loudbay** » Fri Dec 05, 2003 9:59 am

does anyone know the fastest/quickest sr20det in the u.s.? just curious and this seemed as good a place as any...

Post by **RobDET** » Fri Dec 05, 2003 9:59 am

You can definately run in the 12's with that setup... I ran 13.4 with stock injectos and a 2.2 short time. If i could take that down to a 2.0 on some real slicks there is a good chance it would be a 12.99 pass. 105 is plenty fast enough for a high 12 second pass.

It can and has been done on the T25.

Post by **RobDET** » Fri Dec 05, 2003 9:59 am

oah but you do need an LSD

Post by **f150intally** » Fri Dec 05, 2003 9:59 am

Actually you could cut a sub 2.0 60 ft with an open diff and a set of drag radials. Take your pick, they are both around $200. Tire compound such as a drag radial is more effective than an LSD with street tires. The ultimate combo being LSD and DRAG RADIALS.

-Jay

Post by **240SXer** » Fri Dec 05, 2003 9:59 am

I've gotten 2.118 on my Kumo 225s that were fairly balled.

Post by **SRdave240** » Fri Dec 05, 2003 9:59 am

Actually, bald tires hook up better on the strip. Best 60' I was able to manage was a 2.15 on vlsd and 205 street tires. Next time I hope for a sub 2.1 on the same set up.

Post by **weekilty** » Fri Dec 05, 2003 9:59 am

93Niss240 wrote:300 ft/lbs on a stock t-25....yea right.....NEVER!....

You guys have no idea!Would you like me to post the dyno chart?We could not figure it out eitherit reads250rwh and 300torque.@12psi on a t25, mind blowing isnt it.he as tuned ecu, greddy o2 housing, blitz downpipe, catbackFMIC, HKS iridium sparkplugs, Koyo RadiatorBelieve it!!!

mine were a little closer 265rwh and 275torquecome see my car at http://www.cardomain.com/id/weekilty

Post by **jbsr20fiend** » Fri Dec 05, 2003 9:59 am

Hey weekilty, are you using the stock injectors and mafs. On a stock turbo that is quite impressive. Is that a redtop?

Post by **SRdave240** » Fri Dec 05, 2003 9:59 am

The most hp I have seen on a t25 SR was 275 and that was cusom tuned ECU, bigger cams, tubular manifold, fmic, 3" turbo back, etc, etc.

Hell yeah, I want to see the dynograph!

Was it SAE corrected? I doubt it. Also, stock injectors and MAF will not support 275whp.

Post by **240SXer** » Fri Dec 05, 2003 9:59 am

Bald tires CAN hook up good. Depends on the compound. Most 'normal' radial tires only have the soft tread compound on the outer tread, then when you go inside you're into harder. Just because it's balled does not mean it's like a slick. My tires hooked up better when they had tread.

Post by **240SXer** » Fri Dec 05, 2003 9:59 am

300ft/lb to the wheel on a T25 is pretty much impossible. I've had mine up to 12psi, i'll grant the only difference is the ECU tune (which can be a lot I guess), but I can only run 13.5s@12psi, I have no idea how much power that means. But my race weight was 2950lb.

I've got S13 blacktop 3in downpipe, hks o2 housing, fmic, 3in exhaust, test pipe... I guess I don't have the Spark plugs and the Radiator, not that those would mean any power anyway.

Post by **weekilty** » Fri Dec 05, 2003 9:59 am

Ok!I will post this one more time.I spoke to mike to get the dyno chart. I will have it posted by the beginning of next week.I am trying to remember his modsSTOCK!!! yes STOCK redtop.. NO internal work done.Greddy FMIC, HKS BOV, Tuned ECU, Greddy O2 housing, Blitz Downpipe, Kakimoto catback, Koyo radiator w/electric fan, HKS iridium sparkplugs,Blitz boost conttroller250 rear wheel horsepower and 301 foot pounds of torque @12psi on a STOCK T25power steering and a/c disconnectedBest run so far 12.9 @ 105mph and a 1.9 60ft timehe had drag radials onif you want to pay me I'll post video of his 12.9 run lolthere is a picture of his car on page 2 of my webpagehttp://www.cardomain.com/id/weekilty

Post by **SRdave240** » Fri Dec 05, 2003 9:59 am

I'll wait for the SAE corrected dynograph. I don't want to call a premature BS.

Post by **weekilty** » Fri Dec 05, 2003 9:59 am

SRdave240 wrote:I'll wait for the SAE corrected dynograph. I don't want to call a premature BS.

I'll be expecting flowers and chocolate in the mail in the form of an appology when I prove you wrongLOL

Post by **240SXer** » Fri Dec 05, 2003 9:59 am

Dude there is NO way it would push those #s. The only difference between that setup and mine is the electric fans and the ECU. I can maybe belive the 1/4 mile time, but No way that dyno. Why does it have so much torque? Is it on stock exhaust or somthing? There is no way. I can belive 250rwhp, no NO way 300ft/lb of torque. To put down 300ft/lb of torque you'd have to be putting down at least close to the same HP. I don't get it. T25 with higher boost will put down more hp than torque.

Post by **weekilty** » Fri Dec 05, 2003 9:59 am

240SXer wrote:Dude there is NO way it would push those #s. The only difference between that setup and mine is the electric fans and the ECU. I can maybe belive the 1/4 mile time, but No way that dyno. Why does it have so much torque? Is it on stock exhaust or somthing? There is no way. I can belive 250rwhp, no NO way 300ft/lb of torque. To put down 300ft/lb of torque you'd have to be putting down at least close to the same HP. I don't get it. T25 with higher boost will put down more hp than torque.

we could not figure it out either.but thats the way it isI want a big YOU DA MAN on monday when I post the dyno chart

like i said b4 I am putting 265rwh and 275torque with mine and I have a hybrid t25 t3 so how do you think i felt when his torque #s showed up

Post by **240SXer** » Fri Dec 05, 2003 9:59 am

The dyno chart won't convince me. I don't see how it's possible. Is this on pump gas? What kinda exhaust does the car have on it? There did you get your hybrid turbo and stuff?

Post by **weekilty** » Fri Dec 05, 2003 9:59 am

240SXer wrote:The dyno chart won't convince me. I don't see how it's possible. Is this on pump gas? What kinda exhaust does the car have on it? There did you get your hybrid turbo and stuff?

I'm not sure if it was on pump gas or notHis exhaust is a Kakimoto cat back. I mentioned that on a previous postMy turbo work was done by a local guy here in St Louis.He has been working with turbo's for over 30 years.He used to be a part owner in the BIG FOOT company.as for the dyno chart, that is the only proof ican offer youexcept for the 12.9 drag runI reallize it is hard to phathom but that's the way it isI hope everyone realizes i am talking about two different cars.Red 89 redtop 250rwh-301torque @12psipurple 95 blacktop 265rwh-275torque @ 14psi

Post by **240SXer** » Fri Dec 05, 2003 9:59 am

Ya.. I realize there is 2 cars.. how much did you pay for your turbo? Are you on stock injectors/

Post by **weekilty** » Fri Dec 05, 2003 9:59 am

we are both running stock injectorsI paid $600 for my turbo

Post by **Phax** » Fri Dec 05, 2003 9:59 am

weekilty wrote:we could not figure it out either.but thats the way it isI want a big YOU DA MAN on monday when I post the dyno chart

Given that there are bunches of people running similar setups who aren't getting anywhere near that much torque, it is safe to assume that the dyno chart you got is flawed. The computer goofed or something.

But hey, if it's the real deal, you should be able to hook it up to another dyno, do another pull, and get very similar numbers.

So in order to be convinced, I need to see two seperate dyno charts.

Post by **240SXer** » Fri Dec 05, 2003 9:59 am

I'd need 2 also. The fact is like you said, other people (like me) have almost the exact same setup and we're not getting those #s. So why is he? Does not make sence.

Where did you get your Turbo for $600? Does it bolt onto the stock Manifold?

Approx. 1/4 mile Times w/Sr20det

Re: Re: high 12's

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