how many cosworth e30's are still around.....?

[Pete-M]

It definately wasn't a T4, but it may have been a hybrid of some sort (although neither the BBR paperwork or the bloke who did the engine said anything about the turbo being modified)

I did try a T4 on it and it just made the car a nightmare to drive. All the driveablily was gone, the lag was hideous but it went like stink from 3500 rpm.

The 'T3' used to peak at around 36 psi and then settle at 28-30 at full throttle. The BBR boost gauge used to go right off the end, which was an amusing little trick. Did bugger all below 1800 rpm and didn't start to drop off boost until 7500 rpm. Limiter was set at 7800.

This is the car in question, I'll try and dig out the underbonnet shots to see if any light can be shed on this turbo...

[MarkF]

Thats the one mate! What car do you have? I have been the last 2 months and will be there on Nov 12

Red E30, as seen here: (I should be at the pod on the 12th btw, marshalling)
http://i77.photobucket.com/albums/j76/2 ... une036.jpg

(trying not to clog up thread, soz fuzzy)

Possibly see you on the 12th mate

Sorry for going off topic Fuzzy

[fuzzy]

28psi is my turbo's limit, a t34.48 and that wont do over 400bhp more probably 370bhp. my other turbo, a t34.63 will touch 400. i dont think even a t38 would manage 500bhp.

[fuzzy]

I'll try and dig out the underbonnet shots to see if any light can be shed on this turbo...

this is my t34.48.....


[/quote]

[SPADGE]

Sorry Pete but that is absolute bollox

A T3 absolutely max'd out will give you circa 360bhp running just under 2 bar of boost, dark green 803's etc etc and will destroy itself very very quickly!

The larger T3/4 as used on the big turbo Escos with the .63 exhaust housing will just about scrape 400hp running light blue 400's or grey 403's and a proper set-up/map.

A T4 is a fairly large turbo which can supply ample amounts of boost but unless the head has had some serious work somewhere just above the 400 bhp figure is about it.

i didnt even think 360 was attainable on a t3. i thought 330 was at the limit for that turbo. definately not 528bhp, not a chance, not ever.

The car in question was originally built by BBR and produced 385 bhp as built by them, I later mangled the bottom end and had the engine rebuilt and upgraded by a friend who normally builds engines for offshore powerboat racing teams. The turbo was untouched during the rebuild but that car pulled 450+ hp on four different sets of rollers, and 528 bhp on the engine dyno of the chap who built it.

Severn Valley Motorsport said the same as you (as did Collins), but four different sets of rollers said otherwise, as did a verified 185 mph at Bruntingthorpe and an 11 sec 1/4 mile time.

It crucified a Collins built '500 bhp' RS500 at Santa Pod, something I suspect a 330 bhp one couldn't do.

Mate i'm sorry but there is no way at all a YB with a T3 turbo will pull the sorts of figures your talking about!
I have built numerous high powered Cosworth engines and do know a little about them.
My brand new 200 blocked engine using a Nick Warples fully ported head, 8 x 803's ,Modified T4, big cams, L8 and air to air injectors etc etc...only managed 517.9 bhp with Ahmed live mapping it on Harvey Gibbs dyno and believe me if it could have been done using a poxy T3 i would have saved myself a huge amount of money and done it!!
A T3 will not provide enough boost to get anywhere near the figures you are quoting sorry.
As for the 11 sec quarter was this a 2wd car? Also what was its terminal speed on the 11 sec run??

[SPADGE]

PS let me see a pic of this engine and i'll tell you exactly what it is/was

[fuzzy]

and do know a little about them

spadge is lying here.... he knows a lot about them

[aj_mckay]

Quick question from a complete amateur...

On these cossie engines is the timing belt exposed? On this pic it looks like it is and the same on Fuzzy's above...

Can anyone enlighten me?

[fuzzy]

timing belt is originally covered by a plastic shroud, most peopple , including me remove it . just looks so much nicer. i dont think theres any real reason or benefit to other than aesthetics?

[SPADGE]

Quick question from a complete amateur...

On these cossie engines is the timing belt exposed? On this pic it looks like it is and the same on Fuzzy's above...

Can anyone enlighten me?

What a mess that is
Any more pics of that bay please?

As fuzzy says many people remove the plastic guard from the belt and cam pulleys.
Some will say this is dodgey as a stone could hit the belt but my view was always that at least without a cover there was no chance of a stone getting stuck in there.
I always ran without a cover mainly as i wanted to be able to inspect the belt regulaly.

[aj_mckay]

http://www.pistonheads.com/SALES/743916.htm

It's the one 'e30cossie' is buying/has bought back apparently - bit of a project from what I gather.

I can see your ponit of view with regards to nothing being able to get stuck in there... 'specially if it's not a comprehensive sealed cover

[SPADGE]

A quick pic of my 517.9bhp engine but please ignore the poncy cambelt cover i removed it shortly after fitting it

[aj_mckay]

holy shizzle that's nice!

[fuzzy]

thats a clean and tidy engine bay

[SPADGE]

At circa 12k for what is in that pic it had to be

[fuzzy]

At circa 12k for what is in that pic it had to be

12k to get to that level so i dont think a £500 t3 would quite manage.

[town325i]

Sorry Pete but that is absolute bollox

A T3 absolutely max'd out will give you circa 360bhp running just under 2 bar of boost, dark green 803's etc etc and will destroy itself very very quickly!

The larger T3/4 as used on the big turbo Escos with the .63 exhaust housing will just about scrape 400hp running light blue 400's or grey 403's and a proper set-up/map.

A T4 is a fairly large turbo which can supply ample amounts of boost but unless the head has had some serious work somewhere just above the 400 bhp figure is about it.

i didnt even think 360 was attainable on a t3. i thought 330 was at the limit for that turbo. definately not 528bhp, not a chance, not ever.

The car in question was originally built by BBR and produced 385 bhp as built by them, I later mangled the bottom end and had the engine rebuilt and upgraded by a friend who normally builds engines for offshore powerboat racing teams. The turbo was untouched during the rebuild but that car pulled 450+ hp on four different sets of rollers, and 528 bhp on the engine dyno of the chap who built it.

Severn Valley Motorsport said the same as you (as did Collins), but four different sets of rollers said otherwise, as did a verified 185 mph at Bruntingthorpe and an 11 sec 1/4 mile time.

It crucified a Collins built '500 bhp' RS500 at Santa Pod, something I suspect a 330 bhp one couldn't do.

when was the last time you went to sever vally motorsport? iirc its gone and it was only a shitty little shed

[fuzzy]

severn valley was a well known name werent they? ive heard of them but havent had any first hand experience of them.

[HairyScreech]

iv heard of them, they did a black zetec turbo ka. and the owner had nothing but problems with it. not good.

[town325i]

it was a shit little shed in iron bridge near telford its now a cafe i only no this because my uncle lives there. every time i went past it there never really seamed much going on in there. it was a well known name every ford around had one of there window stickers

[e30cossie]

That was a picture of my e30 cosworth engine bay. But it did not look as messy as that when i sold it. Im thinking about re-shelling the whole car as there are too many small problems. I did have a chrome cam cover but removed bits off the car before i sold it .

I only brought the car back as i know what i spent on the engine and other parts.

[Jon_Bmw]

Thats a big turbo spadge! Internal wastegate That cambelt cover was the last of your council days I trust?

[sati]

i was just wondering how much it can take to see if it was cheaper to mod the stock engine then replace it sumthing more beefer but i think i will stick 2 RWD less likey to go wrong. , my mate owns a breakers yard / tunning shop and they got a few cars as show car's they also had the louldest car ever! a 300ZX with 4" tail pipe's leading to 2 x 10" back box's custom made and just on tick over it was over 100DB , will post a pic of it 2moz , so you can see

[Pete-M]

when was the last time you went to severn valley motorsport? iirc its gone and it was only a shitty little shed

I had the Cosworth from 96-98. I bought a pair of Konis for it from Severn Valley, they doubted its power output until I took one of them out for a spin in it...

[cecotto_singh]

hello mate, hows yours going these days? thats 3 of us so far. any more and we'll need something bigger than a bus shelter for the annual meet
what ever happened to the cosworth touring i heard you were building spadge?

mine was going well. changed the diff for the m3 item so lost some of the acceleration but was easier to get the power down.
blew the turbo on the way to santa pod for the dragstrip challenge tho so just conteplating whether to replace it for a bigger one.

what spec is your? what turbo is on it just now? bigger is always best when replacing things

mine was stage 3 with t34 running greens.
was thinking bout getting t38 and runnin blacks with a live mapping sesh 2.
what you reckon is the best ratio diff for the cosworth e30?

[SPADGE]

mine was going well. changed the diff for the m3 item so lost some of the acceleration but was easier to get the power down.
blew the turbo on the way to santa pod for the dragstrip challenge tho so just conteplating whether to replace it for a bigger one.

what spec is your? what turbo is on it just now? bigger is always best when replacing things

mine was stage 3 with t34 running greens.
was thinking bout getting t38 and runnin blacks with a live mapping sesh 2.
what you reckon is the best ratio diff for the cosworth e30?

Blacks????

Using the T5 box the 3.64 would be ideal as it is the same ratio as a standard cosworth lsd.

[cecotto_singh]

[quote="fuzzy
mine was stage 3 with t34 running greens.
was thinking bout getting t38 and runnin blacks with a live mapping sesh 2.
what you reckon is the best ratio diff for the cosworth e30?

Blacks????

Using the T5 box the 3.64 would be ideal as it is the same ratio as a standard cosworth lsd.

siemen black injectors

thats interesting about the diff ratio. cheers

[maxfield]

Spadge that looks sweet.

Wish I had 12k to blow on an engine, well 12k on a car wouldn't go a miss

[Fushion_Julz]

wats the most the IX Gear can take and what engine did it come with?

Sati the iX came as standard with a 325i lump - they were pretty rare so I doubt anyone has dropped a really powerful lump in one - you'd just have to try it - what have you got in mind ?

The E30 325iX came with the 171bhp M20 and they weren't that rare...Just not very popular in the UK, is all...

However the same running gear (transfer box and diffs) also came on the E34 525iX...That used a 192bhp M50

I have one of those (E34) and you could probably put around 250bhp through the stock stuff without too much issue...

If you were gonna put a different motor in, though, you'd have to come up with a plan for the front driveshafts...The right hand one goes through the (special) sump

[fuzzy]

when i 4x4 mine (eventually)it will be using cosworth running gear. e30 stuff wont take basic stage 1 cosworth tuning levels.

[DanThe]

Average cosworth owner/driver attire -

[fuzzy]

your average bmw owner in comparison is a well balanced chap, they have chips on both shoulders.

[Gortour]

so how balanced are you then fuzzy, with Cosworth AND Bmw?

[fuzzy]

my first love was jap cars. ive never owned a whole cosworth and a bmw is my current choice of storage for my engine. i dont tie myself to any particular marque

[Gortour]

So does that make you totally unbalanced then mate?