bmw m20 turbo in the 11 seconds???

[AusScare]

What sort of street tyres would put down 400whp in 2nd or 3rd gear?

235/40/17 semi slicks?

[lcoleman]

Ditch all the weight you can and really, really focus on the rear suspension and I think it's possible, even with ~350 horsepower.

Wheel hop and broken parts will be your biggest issues IMO.

[DER E30]

people, can i fit a 26x8.5 15" slick, without spacers?

All in the wheel offset/height I'd imagine.

[bmwgt123]

people, can i fit a 26x8.5 15" slick, without spacers?

[bmwgt123]

I have yet to hear of anyone breaking an m20 crank. I've read about a broken m21 crank once.

x2 i hear this too

[OOMPH!]

Anyone that would suggest a forged Chinese rod over something stock holds no credibility in my book. At least with oem you know what your getting.

+1 My thoughts exactly.

[einstein57]

Eta crank is cast iron - no good, better of with forged crank from diesel m21d24. Stock rods - nothing good as well, better of with cheapest forged ebay rods from china. Pistons must be SuperEta (compound shape like b25) to work with 885 head properly.

For strong rear end adapt e34 rear, you will be needing 210mm diff anyway.

Sent from my GT-S5570 using Tapatalk 2

I have yet to hear of anyone breaking an m20 crank. I've read about a broken m21 crank once.

[ForcedFirebird]

Don't worry about CR. The m20b25 only has 8.8:1, seta has 8.5:1 and you will be at 8.4:1 with an eta/i hybrid. If anything the compression in an m20 should be raised, not lowered. I have had great success in boosting cars with as much as 9.7:1. You will make more power in boost, and more importantly, more power in low boost.

[bmwgt123]

People do it all the time and always get mediocre results. Use 731 head if you insist on keeping flat top pistons.

Sent from my GT-S5570 using Tapatalk 2

maybe for NA is not a good combo, but for F/I im looking for a low cr

[ForcedFirebird]

Eta crank is cast iron - no good, better of with forged crank from diesel m21d24. Stock rods - nothing good as well, better of with cheapest forged ebay rods from china. Pistons must be SuperEta (compound shape like b25) to work with 885 head properly.

For strong rear end adapt e34 rear, you will be needing 210mm diff anyway.

Sent from my GT-S5570 using Tapatalk 2

The stock cast crank is fine. People have been making 500hp on them for a long time now.

[IronFreak]

Anyone that would suggest a forged Chinese rod over something stock holds no credibility in my book. At least with oem you know what your getting.

[raudonis]

People do it all the time and always get mediocre results. Use 731 head if you insist on keeping flat top pistons.

Sent from my GT-S5570 using Tapatalk 2

[bmwgt123]

Eta crank is cast iron - no good, better of with forged crank from diesel m21d24. Stock rods - nothing good as well, better of with cheapest forged ebay rods from china. Pistons must be SuperEta (compound shape like b25) to work with 885 head properly.

For strong rear end adapt e34 rear, you will be needing 210mm diff anyway.

Sent from my GT-S5570 using Tapatalk 2

i have seen several people matching eta pistons with "i" head

[raudonis]

eta crank,rod,pistons ,i head and vac turbo cam

Eta crank is cast iron - no good, better of with forged crank from diesel m21d24. Stock rods - nothing good as well, better of with cheapest forged ebay rods from china. Pistons must be SuperEta (compound shape like b25) to work with 885 head properly.

For strong rear end adapt e34 rear, you will be needing 210mm diff anyway.

Sent from my GT-S5570 using Tapatalk 2

[bmwgt123]

this ones look interesting http://www.catuned.com/e30-bmw-325i3...hromolly-axles