M30 Turbo update thread ****RUNNING

[Ant]

yes M8, went out left, ran straight into a slow moving tractor, so I did the U and shot back the way I came in.

your face was like , WTF !

get that one way valve into the FPR and feed it boostage only and you could get 7 psi outa those 30#'s

[Andy335Touring]

dunno about 300bhp... boost comes i quite progressively so it's deceptive i guess, no massive thump in the back but it does go quite well

Glad it all went ok for you mate, progressive boost build up is good, especially on wet corners !

Sods law my feckin laptop battery's playing ball again now Ant

This might be cheaper than a new battery ?

http://www.globalpositioningsystems.co. ... ption.html

5.5psi will stay for the time being, need more fuel lol

This post was sponsored by Esso fuels

[Turbo-Brown]

Just a thought, but would not installing a one way valve pointing at the FPR just pump the FPR up leaving the trapped air with nowhere to escape to and the fuel pressure constantly at the reg's rating plus boost pressure?

Guess you could introduce a small leak into the signal line between the valve and FPR to let air out, but I reckon it'd likely send your fuelling all over the place given a transient pressure condition.

[Ant]

Ummm yeah, good point Alex bit punchy last night

[320Touring]

Ummm yeah, good point Alex bit punchy last night

Welcome to Forced Intoxication With Ant.....

Toby-that m30 turbo of yours will be shown to my father in due course-it is definately the way forward

a master-class of home engineering surpassing bmw's own

[e30_Turbo]

Ant/Toby, Would something like the RRFPR be of any use? as I have one sat in the box in my shed still.

Other than that I can feel some more mean greenies coming on!

[Ant]

Bigger squirters are the long term soloution Fozz, nothing else will offer the same overall goodness

Boost- you know it makes sense

[Toby_Unna]

42#'s are the way forward (what i should have bought to begin with!)

went out for a decent blast last night and all seems well, need to wire up the tacho up though, that's annoying me a lot now!

still not managed to blow those mani gaskets again since i had it apart and smeared assembly paste on em... if they go again i'll get the mani skimmed.

the whole exhaust side of the turbo was dull orange when i got back last night

having great fun anyway. reckon i can manage for a month or two seeing how it all holds together on 5PSI, then if i can afford it put some greens in along with the 8 PSI spring

[jmc330i]

I hate this thread - I so want to turbo something everytime I read it
Whenever I open the bonnet on the Sport and see the S50 there.....


Great work Toby
Do we get any vids yet???

[Jhonno]

Coming to Ace this Mon then Toby?

[Toby_Unna]

just sorted the rev counter signal, dead easy and good fun as with the rest of MS

megasquirt is such a great toy

Dan... unlikely mate, i can't afford the fuel to be honest

plus i haven't been further than about 20 miles from home so far and i'm expecting something or other to break soon

[Jhonno]

Dan... unlikely mate, i can't afford the fuel to be honest

plus i haven't been further than about 20 miles from home so far and i'm expecting something or other to break soon

Shame, hope to see it soon!! You goin to any shows with it?

Its a BM.. Nowt will break

[gareth]

Its a BM.. Nowt will break

[Jhonno]

Its a BM.. Nowt will break

[Toby_Unna]

Update...

done a few hundred miles of hard driving now. no issues whatsoever, exhaust mani still sealing, oil return still dripping slightly, starts first time every time and runs beautifully since Ant fettled the map.

result? it's bloody amazing

don't get a proper idea of the power until in higher gears - i thought i'd got used to the power in second and third gear, but having given it a good run in 4th i'm still dead happy with 5psi. the gearing feels spot on with the 3.08 diff, pulls fourth really really hard from 80-90mph, not gone all the way yet but up to 130ish it's wonderful, feels really strong, definately feels like 300bhp anyway.

almost better is that in 5th at about 80mph, give it light throttle and after a moment the turbo starts to spool and it pushes you gently in the back - and that's a theoretical 170mph gear

cooling seems ok too now i've got the fan wired in right! never been above half way on the gauge since then, anyway.

chuffed to bits with it all in all, my 1 and only gripe is that i've lost the lovely induction howl thanks to the IC/piping/turbo

[glenn]

brilliant

[billgatese30]

so when you gonna come to ferrybridge and give me a ride

[gareth]

chuffed to bits with it all in all, my 1 and only gripe is that i've lost the lovely induction howl thanks to the IC/piping/turbo

this is why i'm thinking a supercharged 3.5 is the way to go!!!! hooooooooowl!!!!

are you getting the urge for even more power yet?

[Toby_Unna]

to be honest mate, no

had a decent run today down to the retro cars show at santa pod, considered taking it on the strip, watched a few cars break driveshafts and decided best leave it for today

on the road in fourth gear it's bloody brilliant

I think the power delivery with ther turbo makes it feel quick in the way a supercharger might not?

[gareth]

i suppose the SC would give that power and torque level instantly and at any revs so would lose the turbo 'surge'! even my 406 turbo diesel feels faster than its 90bhp would suggest when it comes on boost

the flipside is that i've never been a fan of turbo lag. it's amusing and gives an impressive feeling but having been in a 200 bhp golf G60 i love the wail the SC gives and the instant grunt.

it's a tough call... the SC is going to be harder to mount and drive but the exhaust i have (M3 SS) can remain as-is.

[Toby_Unna]

fair enough!

there was a square old granada 2.8i doing runs today, fully road legal and standard from outside, with a supercharged LS1 V8. sounded great and was doing 10.8 sec quarters

[ed325i]

fair enough!

there was a square old granada 2.8i doing runs today, fully road legal and standard from outside, with a supercharged LS1 V8. sounded great and was doing 10.8 sec quarters

Was that at retro at santa pod ??

ED

[Toby_Unna]

yup. got a vid of it too when i download stuff from the camera.

proper sleeper, thought it was just a v6 with a loud exhaust until the lights went green

[Toby_Unna]

Well it's still working

not for long though, have managed to put a tiny crack in the front corner of the sump somehow so it's dripping oil a bit. Andy335touring kindly dropped me off a spare sump last night, so it'll all have to come apart now to fit that. and while at it, install the adjustable fuel pressure reg Ant kindly supplied, put a different spring in the wastegate and sample a few more psi

[E30BeemerLad]

saw that Granny at TOTB last year, super cool old retro chariot on Azev A's

TOTB is on again this weekend at Elvington, so may pop along and have another butchers at it.

[gareth]

is your sump low like mine? i'm worried about smacking mine into the ground at some point so may make up a sump gaurd of some sort...

[Toby_Unna]

it hasn't hit the ground, no scraping underneath. just knocked the bottom corner of one of the front fins off slightly, i think i'm unlucky it's actually leaking (it's barely dripping, maybe 1 or two cups worth a day just sitting there)

i wouldn't wory mate. my front springs are too soft, that's the problem i think. a guard probably wouldn't do any harm though
how's yours going?

[gareth]

that sounds like the amount of oil loss that condemmed my 2.5! easily fixable but a good excuse to do the swap!

i suspect my springs are from a 4 cylinder kit as it's sagged so much with the M30 in there, it was low and very soft with the M20, now it's ridiculous!

mine is actally still off the road. i need to swap the damaged panels over (various damage!), get my one new 16" alpina rep refurbished to match the rest, sort that missfire, sort the springs out, fit my offset M3 bushes and offset trailing arm bushes (maybe some poly subframe ones while i'm at it), get a MOT and all by september 23rd!!!! i may leave the suspension alone for now and get the bodywork all tidied for the show and then get stuck into mechanical bits again afterwards

i do start it up every now and then though and every time i nearly wet myself!

[Andy335Touring]

have managed to put a tiny crack in the front corner of the sump somehow so it's dripping oil a bit. Andy335touring kindly dropped me off a spare sump last night

No probs dude, it was good to catch up and have a ride in your beasty

[Andy335Touring]

BTW what you need to cure the low sump problem is to have a bat winged sump and modified oil pick up pipe like Ian's H35, not going to be cheap though

[gareth]

eg, custom sump?

may be a good idea on mine, it's soooo vulnerable!

[Andy335Touring]

eg, custom sump?

yeah, unless you can get a second hand Hartge one but i guess it will be like trying to find rocking horse poo

[gareth]

probably cheaper to get one fabricated too!

[Yaninnya]

I've reverted to the original plan which was the big volvo IC. and it is pretty big

Do you know from what Volvo it is?
Cheers,
Jan

[Toby_Unna]

yup

760

2.5 inch stubs