another budget turbo build...bottom mount

[tglaze]

i can make another manifold, but if you have an m44 i assume that its an e36,
in that case use the obx bottom mount manifold.  good heady duty tubular design and very affordable.  it also comes with a 3" stainless downpipe with a flex pipe and 3 bolt flange.   i can sell you one for around $400 i think.  yes, we do sell all the tubing as well.

i'm still holding out on the dyno until i am completely satisfied with the tuning. thats takes time and i dont have alot of it.  poking away at all this ish little by little but we'll get it knocked out.

I have found what i beleive to be the limit of the stock head gasket/head bolts.  sustained 10-11 psi causes the head to lift and overpressurizes the cooling system causing it to push out coolant and overheat.  it seams to be fine with full boost bursts but nothing drawn out over more than a run through the gears or twice maybe.

i will now be swapping the head bolts to arp studs and see if i can make it woulrk with the stock head gasket still.  i'm pretty sure that should work just fine for up to close to 1bar boost.

[kevins08]

i actually just have the m44 from a 94 318i, but its going to be dropped in a 1974 2002 so the engine bay will be way more similar to the e30. so that being said, how much would you expect to sell it for if you do end up making one?

and i will be running forged internals and ARP's right off the bat, so i will be able to run quite a bit more boost, but im interested to see what the baseline is with around 10psi, so i can know a little what to expect

and also, do you think the MS would work as a starting point on the m44 as well or will i have to get a completely new map?

EDIT: Im dumb, a 1994 is still an m42!

[tglaze]

it will definately work.  the timing will likely be higher for your set-up as i imagine you will be running slightly lower compression at least.

the manifold will not be efficient at much higher boost levels that what i am running now.  i would highly recommend fabbing a legit tubular manifold.

[tglaze]

ok, so heres a little burn out video from ealier today.  sound isnt that great.

http://www.youtube.com/watch?v=0l_sccqEF_8

[gsxrcop]

That was money Todd! Now we need a in car video. For shitty sound, it still sounds good.

[e30nub]

+1 on in-car! Shit's awesome Todd!

[e30nub]

Get in-car and drive-by vids ASAP!!

[Boosted E30]

What are you using for a fuel pump in your car? im running out of fuel on 10.5psi in high rpms.

[tglaze]

i use these on just about all the performance projects i do. have one in our supercharged s50, m20 stroker, m20 turbo, and my m42 turbo.
http://cgi.ebay.com/ebaymotors/255-LPH-FUEL-PUMP-BMW-M3-E30-E36-E46-320-325-i-318-330i_W0QQcmdZViewItemQQ_trkparmsZ72Q3a1171Q7c66Q3a2Q7c65Q3a12Q7c39Q3a1Q7c240Q3a1318Q7c301Q3a1Q7c293Q3a1Q7c294Q3a50QQ_trksidZp3286Q2ec0Q2em14QQhashZitem280314783421QQitemZ280314783421QQptZMotorsQ5fCarQ5fTruckQ5fPartsQ5fAccessories

What are you using for a fuel pump in your car? im running out of fuel on 10.5psi in high rpms.

what size injectors you using?

[Boosted E30]

I'm using the Bosch style green top Im pretty sure there 42lb

[tglaze]

they are probably 30lbers. you have probably maxed them out.  maybe increase your fuel pressure a bit and see if it helps.  42 lbers would be just right on that setup.  run a datalog and see if you are running out of duty cycle on the injectors and/or hook up a fuel pressure guage and go for a pull and see if the fuel pressure drops.

[Boosted E30]

Ya the injectors are at 95% do you think a pump will help out? Or should I look into bigger injectors? What injectors are you using?

[tglaze]

it could be a combination of both. typically you dont want to go over 85% duty cycle on injectors.  42lbers should be fine to like 14-15 psi i would guess.  some 550cc injectors would be perfect. i'm using 72lbers on mine which are overkill and really hard to tune, but i have some more new ones i could sell you if interested.

[Boosted E30]

What's the price on those? I'm goin to see if the guy I got mine from will just trade me for bigger ones if not then I guess I will have to buy a new set which I wanna try to avoid.

[Boosted E30]

Never mind they are 42lbers 440cc just checked my invoice.