Swap 1/4 Mile Thread

[rneedham1979]

Well I just ran. First time running this car, only ran FWD cars a few times before this. 13.4@ 105 with a 2.1 60 ft. It just spun through second, tried lifting but kept spinning. Car is 2715 with me in it, I'm about 155. I ran against a new Camaro that ran 12.7 at 106, once I stopped spinning he wasn't going anywhere. There is definitely more in this thing, just need to learn how to drive. :D

Nice man, you'll get it down. With a really good 60ft you'd break into the 12's.

[JGood]

Well I just ran. First time running this car, only ran FWD cars a few times before this. 13.4@ 105 with a 2.1 60 ft. It just spun through second, tried lifting but kept spinning. Car is 2715 with me in it, I'm about 155. I ran against a new Camaro that ran 12.7 at 106, once I stopped spinning he wasn't going anywhere. There is definitely more in this thing, just need to learn how to drive. :D

What engine do you have, and what mods? Did you run at Cecil?

I ran a 13.6@103 with a 2.0 60', and I have an m60b40 (~260 whp and tq), weighing 2685.

Not making excuses for my car or saying you didn't run what you did, but something isn't adding up here if you're just running an s52 haha. I heard Cecil is a fast track, my buddy ran a 14.7 there, and runs ~15.5 at Maple Grove, which is where I did my 13.6.

[red_e30]

i have an obd1 swapped m52 with m3 cams ported head pink top injectors and chip
dynoed on a dyno jet 194 hp and 178 tq
ran a 14.7 kinda slow hoped for faster time but dont have much experience

[justin_l_]

What engine do you have, and what mods? Did you run at Cecil?

I ran a 13.6@103 with a 2.0 60', and I have an m60b40 (~260 whp and tq), weighing 2685.

Not making excuses for my car or saying you didn't run what you did, but something isn't adding up here if you're just running an s52 haha. I heard Cecil is a fast track, my buddy ran a 14.7 there, and runs ~15.5 at Maple Grove, which is where I did my 13.6.

I honestly think your car has alot left in it. Should be low 13's high 12's with your setup. I'm still picking away at my roomate's S52 setup, but am curious as to what it will pull at the track. I'm hoping to see high 12's low 13's if he lets me do a few runs.

I had my NV down to 13.9 at 100 for reference.

[DREWHALL]

What engine do you have, and what mods? Did you run at Cecil?

I ran a 13.6@103 with a 2.0 60', and I have an m60b40 (~260 whp and tq), weighing 2685.

Not making excuses for my car or saying you didn't run what you did, but something isn't adding up here if you're just running an s52 haha. I heard Cecil is a fast track, my buddy ran a 14.7 there, and runs ~15.5 at Maple Grove, which is where I did my 13.6.

It is an OBD1 S50. I got it from Mike(white325is) who said it came out of a wrecked e36 328 in a junkyard somewhere. He had a couple dyno sheets of 250-260 at the wheels but one was a dynojet. I'm running a G260 trans with 3.73LSD. The car is ~2565 with a little over a 1/4 tank so its pretty light. I was thinking the M60 would be faster than that. I really don't know what is done to this engine honestly, this winter I want to pull the head and do a gasket and studs and see what is really inside. I want to measure the cams compared to stock and see what I am working with. It is a pretty quick car.

Edit: Ran at MIR. It's like 5 miles from my house.

[JGood]

It is an OBD1 S50. I got it from Mike(white325is) who said it came out of a wrecked e36 328 in a junkyard somewhere. He had a couple dyno sheets of 250-260 at the wheels but one was a dynojet. I'm running a G260 trans with 3.73LSD. The car is ~2565 with a little over a 1/4 tank so its pretty light. I was thinking the M60 would be faster than that. I really don't know what is done to this engine honestly, this winter I want to pull the head and do a gasket and studs and see what is really inside. I want to measure the cams compared to stock and see what I am working with. It is a pretty quick car.

Did you do that run at Cecil?

I remember seeing Mikes dyno, that is a strong engine.

I walk away from my buddies OBD-I s52 e30, from any speed in any gear. Our cars are geared identically (trans and diff). That's why I was surprised you trapped 2-3mph faster then me. Just doesn't add up!

I honestly think your car has alot left in it. Should be low 13's high 12's with your setup. I'm still picking away at my roomate's S52 setup, but am curious as to what it will pull at the track. I'm hoping to see high 12's low 13's if he lets me do a few runs.

I had my NV down to 13.9 at 100 for reference.

Not saying my car couldn't do a faster 1/4 mile pass, but I didn't have much wheel spin on that run. Dropping 2 tenths on the 60' would take me down to a 13.2 or so, but that's all she's got I think. The trap speed can't really go up.

I remember your NV m50 run, and questioning it at the time haha. My cammed m50 car trapped 96mph. Trap speed has almost nothing to do with the driver, it just tells the power/weight story. You gained 4mph with less hp then me. Crazy.



I'm starting to think the track has a good bit to do with it. Like I said, my buddy took his car to Maple Grove and ran a 15.5, but at Cecil he ran a 14.7. If that holds true for me too, I'd be in the high 12's with a 2.0 60'.

[DREWHALL]

Edited my post. I was at MIR for that run. I was using some beat 205/50/15 ET Streets but I was wheel hopping really bad so I didn't get them as warm as they should have been. It has surprised me so far haha.

[evandael]

slight thread jack ahoy!

an earlier post mentioned proper suspension setup is key for traction/times.. saying something about rear suspensions that are too stiffly sprung.


what would be an ideal spring rate combo front/rear for good traction with an S52? let's say the car is running sticky 225's or similarly appropriate tires.

[rneedham1979]

All you NA guy need to throw on a turbo. Even a cheap, low hp set up. The FI'd E30 is super fun car.

[eurosport22]

S50 with schricks, 24lb injectors, 3.5 maf, TRM tune
zf260 2.93 rear end
street tires leaving the line at 3,000 rpm letting the clutch out slightly hard
r/t .251 (haha zzzzzzz)
60`2.053
1/8 8.72
1/4 13.557
mph 103.78

[digger]

you guys should use this calculator(s) in this link (ones near bottom)

http://www.stealth316.com/2-calc-hp-et-mph.htm

what it shows that a stock weight 3000lb car (as tested i.e. inc driver) will trap 100mph with a stock S50

it is really only good for hp/weight to give trap speed and vice versa there are not enough variables to predict ET with any degree of confidence

P.S don't use this calculator if you have dynojet numbers because it will be a reality check........;)

[skuurt skuurt]

on my last e30 I ran a 14.5 @ 95mph
m50 zf tranny
2.93 diff
dinan chip
2.5in exhaust
225/45-16 bfgoodrich g force tires

on my current s50 track car I haven't had a chance to drag it yet.

[dcskate102]

13.2 at 106 in my s50 m3

2.0 60ft, couldn't launch due to 195 all season tires. Spun through 3rd

3.5'' maf
tune
exhaust
shitty headlight intake
4.10lsd

This was in the dead of summer at cecil, with better tires and cooler temps the car should have done high 12's easily.

Oddly enough the car only dyno'd 193/195, granted it hadn't been calibrated in years after hundreds of passes.

[JGood]

13.2 at 106 in my s50 m3

2.0 60ft, couldn't launch due to 195 all season tires. Spun through 3rd

3.5'' maf
tune
exhaust
shitty headlight intake
4.10lsd

This was in the dead of summer at cecil, with better tires and cooler temps the car should have done high 12's easily.

Oddly enough the car only dyno'd 193/195, granted it hadn't been calibrated in years after hundreds of passes.

I don't even see how that's even physically possible.

My m60 e30, making probably over 260whp/260tq, with a 1.9 60', ran a 13.28@103.5 at Maple Grove at around 70 degrees with no wheel spin (sticky 235's).

I need to go to Cecil. That's the 3rd or 4th super fast time/trap speed I've seen from there.

[JohnyEndo]

What altitude are you at? With that 60'/weight/power you should see 12's and i would expect a higher trap speed. Ive seen slips with cammed s5x's that trapped 106 or even better