Swap 1/4 Mile Thread

**lennon** · 05-10-2009, 07:17 AM

Originally posted by rneedham1979

Hey guys,

Some of these 1/4 times are quite disappointing for me. I bought an E30 to have a lighter car. I am hoping to have a mid 11s daily driver. I had a E39 M5 S2 and I ran 12.4 @ 113mph. I parted it out and will sell it when I return from Iraq. I have recently bought an E30 with a S/C s50. It makes around 400whp the same my S2 made but... it weighs around 1k less.

I will be running 225-50-15 drag radials and raising the whp. I am installing cams, smaller pulley, headgasket/arp bolts and a new tune. Shooting for 450-475whp. I want to be well into the 11's or better.

Comments? Has anyone ran an E30 with around 400whp through the traps?

Thanks!
Ryan

you might need more than 225s haha. plenty of people have run 400whp e30s though

**rneedham1979** · 05-10-2009, 09:04 AM

Yeah tell me about it... I will be running drag radials so, that should help. Once the power plant is finished I will be looking into 16" wheels since there seem to be more DR options for the 16's than the 15's. Anyone know what the 400whp E30s run through the traps?

Ryan

Originally posted by lennon

you might need more than 225s haha. plenty of people have run 400whp e30s though

**diegom6** · 05-10-2009, 09:26 AM

My best was 12.2 ET @ 1/4 mile with about .9 R/T (I suck). Was on semi slicks for track use and spinning all the 2th.

EDIT: I just noticed this is only for m50-s50 engines...oops.

**rneedham1979** · 05-10-2009, 12:08 PM

What whp were you putting down do run 12.2? Semi slicks? Drag radials?

Ryan

**884door** · 05-10-2009, 07:12 PM

Originally posted by rneedham1979

Hey guys,

Some of these 1/4 times are quite disappointing for me. I bought an E30 to have a lighter car. I am hoping to have a mid 11s daily driver. I had a E39 M5 S2 and I ran 12.4 @ 113mph. I parted it out and will sell it when I return from Iraq. I have recently bought an E30 with a S/C s50. It makes around 400whp the same my S2 made but... it weighs around 1k less.

I will be running 225-50-15 drag radials and raising the whp. I am installing cams, smaller pulley, headgasket/arp bolts and a new tune. Shooting for 450-475whp. I want to be well into the 11's or better.

Comments? Has anyone ran an E30 with around 400whp through the traps?

Thanks!
Ryan

If you're a good driver and you can get traction,you'll be able to break into 11s, someone else ran 11.99 with 300whp.

**rneedham1979** · 05-11-2009, 12:10 AM

Well I pulled a 1.8 60ft, 12.4 @113 in a 4klbs sedan with 380-400whp with Nitto rIIs (road race tire)... I would say I am decent driver...

11.9's makes me feel much better about this purchase. With around 450whp and drag radials I hope I can pull a sub 11.50. I will be VERY happy with an 11.50 or better.

Thanks!
Ryan

**rneedham1979** · 05-16-2009, 10:18 AM

ttt

**rneedham1979** · 05-21-2009, 05:15 AM

anyone have anything else to add?

**e30polak** · 05-21-2009, 01:00 PM

Not many people hit the strips in their e30s. Even us swap guys are few and far between. :(

That being said, I will be going this summer when I can get my car better prepared. :nice:

**madformx5** · 05-21-2009, 09:57 PM

I would like to have this kind of horsepower in an e30 but I would want to open road race and/or go to the Salt Flats for a Speed Week. A 11 or 12 second e30 impresses me though.

**madformx5** · 05-21-2009, 10:06 PM

I agree a 225 drag radial is not nearly enough tire to put four hundred horse power to the ground. Hell much more than that and you would probably have to mini-tub an e30 to hook it up. Then you would probably have problems breaking axles or other drivetrain components but I am talking out of my ass here. I am basing this on my knowledge of 5.0 Mustangs. Mmmm 5.0/e30. Sacraledge I know but I have both and engine and a body shell in my garage.

Originally posted by lennon

you might need more than 225s haha. plenty of people have run 400whp e30s though

**rneedham1979** · 05-22-2009, 12:18 AM

Sweet! Hopefully in October I can hit the strip...

Ryan

Originally posted by e30polak

Not many people hit the strips in their e30s. Even us swap guys are few and far between. :(

That being said, I will be going this summer when I can get my car better prepared. :nice:

**rneedham1979** · 05-22-2009, 02:10 AM

We will see. Obviously I would prefer a bit wider tire but... Not going to fully tub the rear end to make the car completely impractical.

Breaking axles.. is an easy fix, the diff is built and the m3 tranny has taken far more power than 400whp. The suspension is vastly different than a mustangs as is the vehicles weight and weight distribution.

I plan on doing severe rolling of the fenders and I will try to find the best wheel tire combination in order to stuff the widest tires under the E30. I have seen 17's with 255 on the back on an E30. That would be close to ideal for my vehicle. Like I said... I have to figure some stuff out and see were I sit when the fenders are rolled.

I also have a pretty high gear ratio so that will reduce wheel spin in 2nd and 3rd..

Ryan

Originally posted by madformx5

I agree a 225 drag radial is not nearly enough tire to put four hundred horse power to the ground. Hell much more than that and you would probably have to mini-tub an e30 to hook it up. Then you would probably have problems breaking axles or other drivetrain components but I am talking out of my ass here. I am basing this on my knowledge of 5.0 Mustangs. Mmmm 5.0/e30. Sacraledge I know but I have both and engine and a body shell in my garage.

**surebimmer** · 09-02-2009, 09:05 PM

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

**Jean** · 09-02-2009, 09:25 PM

Finally some good numbers! Nice job.