Flicktitty

What trans?

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2JZ-GTE Swapped S13 Coupe - 1994 Supra Turbo

RedSled

stock trans might upgrade to z32 but im working with the sr20 trans for now

RedSled

What's up with this chat now ,has everyone stopped racing or something,this chat was so active with tons of knowledge and experiences and advice

RedSled

Doubt I'll get a reply or answer ,if I'm lucky might just get one reply ,but anyways here it goes ,presently I'm getting a 1.5 60 feet ,with stock springs and stock shocks ,but it's a lil shaky on top so I'm going to replace the stock springs with lowering springs, can anyone give me their input or experience on this ,and what difference did you get cause I know a couple guys getting 1.4 and 1.5 60 feet with lowering springs ,just curious as to what brand you used and what pros and cons are there compared to the stock springs

tuzzio

Whos running 15x8 drag (specific) wheels in the rear and clearing z32 calipers? Got a buddy looking to do this and can't find anything without running a spacer.

Stumped

I'm running the cheap megan lowering springs with kyb agx shocks. Front on full loose and rear full tight car goes 1.40 60 on motor with a 27x11.5x15 hoosier quick time pro. Hoping for low 1.30-high1.20s this year on the bottle.

Stumped

I know a 15x10 with a 6.5 inch backspace clears. I'm sure a 15x8 with 5.5 would also.

RedSled

thats really impressive ,im doing 1.55 hoping to drop in the next event ,what ratio diff are you running

Stumped

That was on a 4.08 swapped into a q45 diff. I actually broke the pinion at the end of last season so I went back to the 3.69 q45 for this year.

RedSled

Well redid my suspension and also the ratio and got my 60ft to drop to 1.47 ,still got more to go

PowerDrifter

would 225 mickey thompson street R fit a stock 4 lug se? Some say too big
http://www.mickeythompsontires.com/d...es/et-street-r

website says 6" rim minimum but im just worried if it can hold 400 hp

Sforteen

Im on a 3.69 now and a 28in tire.. hopefully it doesnt kill me to much..

I previously ran my best time (10.14 @ 141mph 1.57 60ft) on a 4.10 and 26in tires..

According to the gear calculator i can finish in 3rd gear instead of having to grab 4th..

RedSled

but it'll be better to finish in fourth to get more mph which would result in a better et

greenpat01

Anyone try some oem 300zx n/a wheel on the back with slick ? on a s13
They are 16x7.5 + 45 .. I will probably rub my coil ?

candyred_240sx

Ran a new personal best last night. sr22vet, n1 cams, gen 1 gtx3076r .78 @ 30 psi running 65% ethanol.

26 x 10.5 et streets, z32 trans.



Forgot the laptop but next thing to do is figure out why the mph is so low in the top end, still pretty happy with the time and the car wasn't fully turned up.

RedSled

Bess ,good time
Need to work on that 60ft ,what hp you are doing ?

RedSled

This has been done long time now ,with 26x10.5 tires ,no problems

candyred_240sx

Thanks man,

Yea I need a better tire/suspension setup. Power is around 680whp dynojet.

Ran a new best time:

Kingtal0n

Which Q45 diff is this, the old 90-96 3.5x ratio or the newer 98-02 3.7 ratio model?

Q: Isn't the Old 3.5x ratio Q45 differential stronger?

Stumped

The broken one was the 4.08 ring and pinion swapped into that carrier to use the big axles. I went to the the 3.69 Q45 diff this season because it has the same big 13 tooth pinion as the 3.54.

I believe the only reason I broke the diff last season was due to the sidewall of my slicks getting weak and having traction issues. The car was loading and unloading the tire hard for the first 30 feet much like having too low of tire pressure would do. I think it cracked the pinion then and I had the failure at the next race with new tires. I'm hoping the big pinion works out this year but I dont think I would have broken the 4.08 if I didnt have those problems.

BlackZenkiS14

Well, figured I'd post this up cause I was happy with it. Went to the drag strip for the first time in years...finally got my 11sec pass!

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-Kyle

Stumped

Made a full pass on the small jet today. Pretty happy with the 60 with such a small tuneup.

Stumped

RedSled

awesome run and great 60ft ,got more in it to go !

RedSled

Anyone using a short shifter for racing ,what's your thought on this and what shifter do you use whether it be oem or aftermarket and lastly was there any significance or gain

candyred_240sx

Ran a new time with the sr22vet

jr_ss

I don’t understand why you’re running in the mid 10’s. You have enough power to be in the low 10’s to high 9’s, especially in the lighter S13 chassis.

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My SR20VET

RedSled

I agree too ,somethings off and mostly likely it can be your final ratio or driving too

candyred_240sx

Yes I agree the car should be faster but a few things I should have mentioned:

It wasn't full tilt, about 5 psi less then the 740 whp tune, and we are playing with boost in first gear / launching. Car has most of its interior and 290lb driver.

The Z32 trans is hurt. It has been making some noise for awhile and is hard to shift quick at high rpm. This is effecting the time for sure.

Gearing probably isn't ideal.. This was the first time I've tried shifting into 4th. I can leave it in third and bang the limiter right at the end (9200rpm) best mph I've seen in third is 134mph.

Will probably just swap in another Z32 trans and do skinny front tires next year then plan for a bigger turbo and better transmission / rear end setup eventually.

RedSled

Ideally for a manual transmission especially the z32 it would be perfect to finish the quarter mile at the top of fourth gear and your mph will be also be higher ,you should play with your diff ratio ,what do have at the moment ?