Swap 1/4 Mile Thread

[JGood]

Ran the E30 M3 obd 1 S52 swap with sunbelt cams and ran a 13.30 ZF trans 3.25 lsd. On hankook RS'2 235/40 17.
r/t .955
60' 2.155
330' 5.743
1/8 8.667
MPH 85.11
1000 11.171
1/4 13.308
MPH 105.94

NICE! Looks like you hooked up pretty well. What tires?

[golde30]

Ran the E30 M3 obd 1 S52 swap with sunbelt cams and ran a 13.30 ZF trans 3.25 lsd. On hankook RS'2 235/40 17.
r/t .955
60' 2.155
330' 5.743
1/8 8.667
MPH 85.11
1000 11.171
1/4 13.308
MPH 105.94

fuck you guys!! i had to run against yer damn car 2x yersterday, made me look bad!! hahahaha

[surebimmer]

NICE! Looks like you hooked up pretty well. What tires?

Street Tires. Hankook RS-2's 235/40 17.

fuck you guys!! i had to run against yer damn car 2x yersterday, made me look bad!! hahahaha

Post your times cary. I heared your friend also got a video of the M3. Hook it up.

[golde30]

i think i'll pass, my times are the same as last time, 14.5 is still my best time. i have to get ahold of my buddys film footage. on my last run i spun the tires through 1st and 2nd getting sideways on the track, it was fun. my buddy who was filming said the spectators were all ooo and aww ing b/c they thought i was gonna go into the wall. LOLz

[Wh33lhop]

Anyone have an M50 swap timeslip (around sea level)? Just curious

[e30polak]

Ran the E30 M3 obd 1 S52 swap with sunbelt cams and ran a 13.30 ZF trans 3.25 lsd. On hankook RS'2 235/40 17.
r/t .955
60' 2.155
330' 5.743
1/8 8.667
MPH 85.11
1000 11.171
1/4 13.308
MPH 105.94

Not bad Kyle! Looks like the diff swap definitely helped if you were whoopin' on Cary like that. :p

With that trap speed, you may be able to hit 12s if you can get a sub 2 second 60 ft. Nice job either way! :nice:

What rpm are you launching at? Did you sidestep/ slip the clutch to help your launch?

i think i'll pass, my times are the same as last time, 14.5 is still my best time. i have to get ahold of my buddys film footage. on my last run i spun the tires through 1st and 2nd getting sideways on the track, it was fun. my buddy who was filming said the spectators were all ooo and aww ing b/c they thought i was gonna go into the wall. LOLz

You got those times with the new VANOS in? :???:

Were you running your M-systems with the 235s???
What rpm did you launch at? What are you trapping? What was your 60 ft?

[z31maniac]

Did you sidestep/ slip the clutch to help your launch?

You pretty much have to slip the clutch if you want to get a good launch. It's fucking hard on the clutch, yes, but it's really the best way to keep tires on the limit of adhesion without bogging/spinning.

If you just dump the clutch you are either going to:
1. Bog down and get a shitty start.
2. Roast the tires through 1st and get a shitty start.

Then you have to be conscious of hard you shift into 2nd, if you're spinning the tires again, all your doing is wasting time.

[JGood]

Anyone have an M50 swap timeslip (around sea level)? Just curious

Mine is a few pages back. 14.4@94

Justin_l (sp?) ran a 13.9 I think.

[808AWD325xi]

It would be cool to see what a 24V IX could do. :D

[EtaSport]

It would be cool to see what a 24V IX could do. :D

It would be cool to see a 24v ix, but I dont think thats going to happen either.

-is anyone with a 3.0 or larger getting any traction what-so-ever? I know I'm comparing apples to oranges, but my 328 with software, catback, intake, m50 manifold, ASC delete, fan delete (yada/yada) will never spin its 245s even when provoked (really wouldnt spin 225s either) but my e30 destroys its 205 azenis on every occasion.

Its really annoying at the autocross because im probably losing a second at every start just easing on the throttle, i never go WOT at the start.

[nando]

It would be cool to see a 24v ix, but I dont think thats going to happen either..

it's been done, several times. ;)

[Jean]

It would be cool to see a 24v ix, but I dont think thats going to happen either.

-is anyone with a 3.0 or larger getting any traction what-so-ever? I know I'm comparing apples to oranges, but my 328 with software, catback, intake, m50 manifold, ASC delete, fan delete (yada/yada) will never spin its 245s even when provoked (really wouldnt spin 225s either) but my e30 destroys its 205 azenis on every occasion.

Its really annoying at the autocross because im probably losing a second at every start just easing on the throttle, i never go WOT at the start.

Hmmm... usually in autocross you don't have to do a drag race start as the first timing light isn't set right at the line.

[rThor432]

-is anyone with a 3.0 or larger getting any traction what-so-ever?

My OBD-1 3.2 E30 has all kinds of traction. I hardly have to slip the clutch in first to ensure a good launch. That's with 225/50/15 RS2's set at 28-30 psi (depending on the day of the week) and a fairly compliant rear suspension. But of course my gearing is pretty weak.. It gets to 60 in a hurry, but I'm putting a 1:1 trans and 3.25 in the back soon, so I'll see if it is a tire roaster after that..

FWIW, like you said, the E36's hook up very well. My 3.2 M3 will not roast 245's unless you really provoke it. I'm running some decent 235's on it right now, and it doesnt even roast those.

[EtaSport]

it's been done, several times. ;)

true, props to the guys who do the work.

I find myself in most situations having a long starting straight on most autocross courses but still end up fishing tires far after the "start-off" area. I never launch but I like to get up to speed quick and it always spins. I haven't quite got the proper feel down for a good start. I watch some guys launch at the start and its such a waste.

The RS2's in that size were my next street tire choice actually. I suppose the e36 cant really be compared to the e30 since the multi-link is leaps above the trailing arm however I still like the e30 for predictability. My e30 is no straight line car so I dont complain plus the 3.73 diff and getrag doesnt help.

[nando]

Hmmm... usually in autocross you don't have to do a drag race start as the first timing light isn't set right at the line.

they usually have it within 5 feet around here. it makes a pretty big difference for me to do a hard launch vs a normal take off.