i know this is ford forum but when the salts on the roads the cossies going to bed for winter so ive got my old e30 325i out of the shed and i want to turbo it. just dont know what exhaust manifold will fit?

ive registered with performance bmw forum but cant post on there til they get back to me.

ive read alot about people in america modding a 524 td manifold but thats lhd so dunno if rhd will be the same ?

any advice much appreciated

 

LHD/RHD manifolds would be the same I reckon?

 

IIRC the 2.5TD manifolds bolt straight on.

i know for a fact some aftermarket manifolds get in the way in RHD form as you got the steering column and mater cyl in the way on a RHD car tho.

but that manifold, im not sure.

 

thats what i origonally thought a 325 e36 td or a range rover 2.5 dse manifold but i cant find no mention of it on the net

 

well had a result today i turned the original manifold upside down and bolted it back on and it leaves the downpipe flange up front and facing up

so ive cut the flange of the downpipe and started making a swanneck type joint like the cossies have. ive got the turbo and an rs turbo wastegate housing and downpipe set in place where i want it right up front behind the headlights. so ive read with some more fuel and 7 psi should be somewhere between 220 and 250 hp

it wont win any concourse awards thats for sure but with a welded diff and possibly 250 hp will be a decent winter blast.

 

Sounds like fun - I might have a crack at this next year for shits and giggles

 

a welded diff on the road is verging on suicidal surely!!!! liking your style tho

 

if im lucky enough to find another lsd in a scrap yard for Ł50 il get one but if not welded will do.

 

Welded on the road is fine for everything except for slow speed manouvreing IMHO

 

try the site www.e30zone.net for everything you could possibly need to know about turboing

 

done some proper calculations today i need 24lb injectors and an 8:1 fmu as long as she will idle on 24s will have enough fuel for 270 hp at 8psi boost so will be plenty rich enough

 

pics of the manifold?

 

whats an "8:1 FMU" ?


What calculations did you do, as by the sounds of it you plan to use the existing management, but have made no reference to what the duty cycle is at full throttle on the existing software.

Also if you just go bigger on the injectors you will of course run into problems with fuelling off boost.

Have you considered a pikey motorsport 7th injector setup?

 

will take some once its finished

 

fmu is a fuel management unit. it will give me 8 psi of fuel pressure for every 1 psi of boost so up to 5 psi will still be on original fpr at 3 bar but after than will increase by 8 psi for every 1 psi of boost. then engine will be around 220 hp at 5 psi so i need injectors to cope with 220 hp up to the 5 psi and then after that the fmu will increae fuel pressure according to boost. and my maximum fuel pressure will be 4.5 bar at 8psi boost which should be ok. if i run with 19lb injectors at 7psi i will have to run 84 psi and at 8 psi boost would be 96 psi so as far as i can gather 24lb is minimum i just hope it will idle its gona be rich but i think it will still run as long as not left idling to long

 

Ah, a rising rate regulator.

Not heard them referred to by that term before, thanks for the education.

 

there is a page on the web //jdturbocharging.com and he claims to have run 7 psi on a t3 with .63 an intercooler and an fmu and no management or spark modifications whatsoever and made 218 atw and 0-60 increased from standard 7.4 to 5.9 and 1/4 mile from 15.4 to 14.2. but says he was on the limit of fueling so hopefully il make a bit more than that 1 psi more boost, a bigger turbo and more fuel

 

Welded diffs are entertaining on the road

E36 325D ex manifold is straight fit I believe, modded one is a damn sight cheaper though

 

i want to use one of my import t04e turbos and they are big not enough room down the side so im uptting it upfront the compressor housing is sitting behind the headlight all the heat will be away from the head aswell which has gotta be a good thing.

 

turbo is now bolted in place, with rs turbo wastegate housing and downpipe flange, ive took the rad out put a rs500 style 60mm core intercooler in and just managed to slip the rad in front of it just had to mod the front end a bit. made a flange to bolt on afm with 65mm steel tube coming out and fitted to intercooler. ive cut the turbo side intercooler inlet pipe of just gotta get it ally welded on the top of the outer case to go to turbo. got 22lb injectors on the way. just need a 10:1 rrfpr (fmu). should hopefully make 250 hp at 8psi.

thats why i havnt been on here for a few days ive been in the barn with me welder and tape measure

 

shame you didnt take the camera

 

i will take some pics when ive finished the mock up. gotta strip it again then and put it together properly and paint manifold etc. its not a show winner by a long long long way. the car owes me nothing infact ive made more out of it than it cost me. my budget is Ł200 so making pretty much everything. ive got a pile of all different parts in my alladins cave i just want a winter hack thatl sit with standard scoobys and the like and be able to get another engine for Ł100 if i blow it up.

 

still no photos

 

What makes u say this?? my mate had a welded diff and it made no difference for normal road use, the only give away is when doing small maneuvers the inside wheel used to skip

 

erm,,,, did someone say photos ?

 

the rad is in front of the intercooler?

 

only way it would fit and rad is much smaller than intercooler. 8 psi max boost so will be fine.

will post a few pics tonight it aint pretty its all home made

 

people who say this are the ones who have NEVER even driven a car with a welded diff

i used our drift shitter every day for a year with a welder and i have to say that it handles BETTER than an open lsd!

now wheres these pics?

 

pics,,,, I CANT SEE ANY FOOKING PICCYS !!!


get em sorted

i can see a anti climax coming later

 

get some pictures up fella where you doing it up the barn???? if so ill pop up and have a ganders at some point?????

 

you used that every day for a year??!!
love it cant beat a twin cam to drive the fuck out of on sunday and go to work on monday

 

 

pm me ur number mate and il txt you when im at the yard. she aint gonna be a looker but hopefully be a sideways laugh

 

just what i was tryin to make , until my cossie came along and used all me cash up , moveing very slowly , just about to order a manifold from these guys
all in usa sorry
http://www.turbochargingdynamics.com/tcd_catal.htm.
here are some dyno figures useing these kits
m20b25 S1 at 9psi = 235rwhp
m20b25 S2 at 13psi = 285rwhp
m20b25 S2 at 16psi = 320rwhp
m20b25 with standalone and 16psi = 345rwhp or better
these guys do cheap converters for standard manifold
http://www.666fabrication.com/
good luck with the project

 

thanks for info mate. i had a t3/t4 laying about with rs turbo wastegate housing so had to make me own custon adapter to get turbo where i needed it. it aint preety but i dont care as long as it works
hopefully i should see 225 rwhp then at 8 psi il be happy with that for under Ł200

cost so far car was less than free and i aint jokin. intercooler Ł30, injectors Ł40, still need 10:1 fmu Ł60. everything else im gonna make got full rs turbo exhaust to mod, 10 for heatproof paint and should be away hopefully

 

i would i gotta say im enjoying doing it. if youve got some steel and a welder you can make all the major componants and cut car up if need be to suit

 

what injectors are you useing and what car are they from ?
gary

 

got 22lb 231 cc on the way i think the same as 635. they will suport 210 hp at 43.5 psi although 635 was 218 so im covered. 4 psi of boost will be 210 hp so im covered to that then with a 10:1 fmu im gonna try run max of 80 psi fuel pressure at 8 psi boost which will make me 40 cc rich which i think should be ok rather be rich than lean. i was gonna go 24 lbers but where do you stop the thing has got to try and idle on them so gotta keep sensible.

 

what are the wheels on the bmw? I've got a set polished from my old e30 but never knew what brand they were. suit beemers great!!

 

they came to me on a golf guy said they were called mims but i dont know