Sep 11, 2012 · M20 turbo builds are tried and tested. Everything always boils down to budget. Working within your budget but not skimping out on quality or preparedness will always be a conflict.

May 9, 2017 · here is my old turbo m20. This is a 2.7 bottom end, 2.5 top end combo with an ebay turbo and homemade manifold. I ran it from 17-21 lbs on a home built megasquirt. You will find alot more info on R3Vlimited or e30tech.com

Feb 4, 2004 · You can buy a 1/8 NPT to AN3 or AN4 adapter and run an AN line from the sensor feed to the turbo for the supply. I was going to reply before but i didn't know where the pickup was on your engine so I waited.

Jun 5, 2011 · M20B25 Turbo build questions So I am soon to acquire my E21 coupe with a 1990 M20B25 swap, the engine was rebuilt 15km ago and so soon I hope to pile on some boost. My goal: 350WHP/400WTQ

Jan 11, 2015 · I'm running m20 adapter, GT35 turbo (ebay .63/.70), 44mm wastegate, MS2 and I made 233/244 on a mustang dyno at 1 bar. Feels pretty good and I think for a stock motor, besides oring and arp head studs, this setup is reliable.

May 20, 2020 · I just got back from a tuning session with my e30 325i running a Comp 6262 turbo with a .82a/r exhaust housing and got some disappoint results. We started out at 10psi and made 221hp, with it falling off around 5500 rpm.

May 8, 2014 · It's common that people use a -10AN fitting for the drain on a HX35, because that's what is normally used on a T3 turbo, but the HX35 drain hole is quite large and should have a -12AN fitting to accommodate the flow. I plan to use both a restrictor and -12AN oil drain to keep my Turbo healthy.

Jul 25, 2013 · hey guys i finished my m20 325es turbo build and i am at the tuning stages of the whole thing, its a 2.7 block with the 885 head, holset hx35, i am using mega squirt to tune. my question is is there a baseline tune that i can go from? could somebody possibly review my datalogs and tell me whats going on? or can somebody point me to a thread ...

Jan 20, 2005 · ATP turbo claims that the turbo is good for 350hp or so, and considering my wheel HP goal is 300-350whp, it should be sufficient. If not I'll consider getting the GT3071R, which is capable of slightly more.

Dec 26, 2014 · M20 turbo - do I need to modify the crankcase/intake breather pipe? [UPDATE] Never mind... I didn't realize at the time that the crankcase gases didn't vent directly into the intake manifold, but instead traveled through an isolated …