E30 Zone

i may be wrong but i have a pretty fair theory on why very few people do big power 2.5's or even 2.7's part of it is bmw's own reliability. a 200k mile m20 is far from unknown and in fact many people would be disappointed if there bmw didnt make that sorta mileage without many issues - ask yourself ...

For Ã‚£1000: -A 325i or 525e block. It doesn't matter a toss which you use. -Six 325i pistons - buy some used ones or a cheap short engine from JonB. -The standard 525e crank and rods. -A 325i head. Don't bother with gasflowing. -A decent cam kit. Piper are excellent, Schrick is similar but with a ...

M5pilot wrote: I've owned more 2.7's than you and they have been in much better shape aswell. The fuelling was spot on and they are still thirsty.

is this not down to the mid 80's technology that is the ecu
eg wud an m20 on decent management not return good mpg ?

offset for the 7" wide bbs rims from a sport is around et25 iirc.

Gonna go for 17" as its me dads car and he doesn't want anything to ott. 17" should just fill the arch nicly. A lot lot cheaper as well + straight fitment :D i only commented on 18" as u said 18" in the first post. make sure all the bushes are good, cos with 17's its gonna go thru them quicker anyw...

Got two wheels in mind - both 18", both keeping to the bbs philosophy. First - the BBS Split rims off the 850 (This is a common swap) werent they 17" not 18" ? both available as 17 and 18" arent the 18" ones from an e39 tho not an 8 - and rare as rocking horse sh*t. oh an need spigot rings.

correct me if I am wrong but the M535 is just a dressed up e28 535 isnt it-they must be dirt cheap if you look around. dirt cheap if u dont mind a total restoration project, but a good one will set u back over a grand not really any more expensive to run than a 325i I think theres only a few hundre...

This ones going for Ã‚£2500 - Just needs a bit of TLC http://www.bmwcarclubgb.co.uk/carsales/adimages/richardbuckley.jpg This is the bumf that goes with the car above: Details: number 086, car has potential but needs attention. blue leather interior (no rips or tears) air con, elec seats, abs, crui...

Conan wrote:Mate, go all the way and get an original M5.

286bhp and they really fly. Get a good one for aroumd Ã‚£4500

u can bank on a touch more than Ã‚£4500 for a nice one

Conan wrote: Got two wheels in mind - both 18", both keeping to the bbs philosophy.

First - the BBS Split rims off the 850 (This is a common swap)

werent they 17" not 18" ?

the problem with 0-60's etc is that they arent indicative of real world performance.

e30 325i is especially problematic as there are several diff ratios/gearbox options all of which wud affect the 0-60 time.

iirc the tech 1 sport wud just about get under the 7 sec mark btw

this shud be awesome when its completed.

if anyones after manifolds etc theres a place in Cardiff called Prospeed where the bloke is a genuine exhaust god - good prices too.

not normally keen on white cars but fair play si urs is simply stunning.

[This is why we "assumed" a 20% transmission loss. http://www.pumaracing.co.uk/power3.htm this is oneof the best write ups ive found in the past. he suggests (as do most other sites) 17% to be about right for rwd - tho obviously it will differ from car to car. I strongly disagree with you about the...

nice one andy, u must be well pleased that its all up n running etc. We assumed a loss of 20% (same as my M3 on Dasteks dyno in 4th) and came out with that 200 bhp. u cant measure power loss on a dyno - its ALWAYS a guess. coastdown - which im guessing u used isnt accurate (it cant be as the transmi...

rocking horse shit wud be easier to locate than one of those, altho iirc they r still available new from the stealers special order - cant remember the price tho. Ã‚£70 odd isnt unusual on the rare occasions they come up on ebay. as for part number i cant help - BUT it was a universal part, not e30 ...

what lumps going in it scott ?

Conan wrote:Which one did the sport come with? (Theres no sport on that E30.de table)

3.64 in a phase one
and 3.91 in a phase 2

Jhonno wrote:Downdrafts can give more power i believe

the air has to turn thru 90 degrees
downdraughts are fine on a V, just an odd choice for an inline.

heres my old 2.7 on dellorto 45's

Brianmoooore wrote:E34 diff won't fit I'm afraid, although the ones from the smaller engined E28 five series will.

dont u have to swap the output shafts to use e28 diffs brian ?

very nice.
i can well believe the sound is amazing - my old 2,7 on 45's was

i do have a question tho.
why have u gone for downdraught instead of sidedraught carbs ?

i wud suggest that only euro ppl answer this, as the US cars differ somewhat.

whats the tb from Andy ?

Argos from what you said this swap differs very much from UK models to US models It will be in the US because a) The US Eta is low compression (well, 9:1) b) You don't have any 731 head castings over there. You need to be talking to JonB here on the Zone to get some 731 heads crated over to the Sta...

ste wrote:They are BBS RS Splitrims - commonly known as BMW 'Style 5s' as fitted to 8 and 5 series (depending on what offset they are).

Lovely, lovely car Sir.

actually they are BBS RC split rims

assuming 15" bbs a dogleg box will give a top speed of close to 120 @ the redline.

super quick acceleration, but piss poor mpg and comfort on m/way

Andy335Touring wrote:http://forum.bmw5.co.uk/

thats the one u need, good bunch of guys on there.

Your pre-facelift sport is quicker than a later model because the Mk2 Sport had emission restrictions. look a bit cooler to! Not a massive difference - jus feel more urgent close, but no prize. tech 1 sport is quicker as it has a higher compression engine than the later tech 2 cars tech 2 had a low...

*** blatant plug ***

im currently selling a perfectly running 525e with plenty of history if anyone wants an engine for a conversion.

no worries, im only buying it for the leather

are u on the 5 series board ?
http://forum.bmw5.co.uk/

racecar wrote: caterham 7 with cosworth bdg - 520kg's + 280 bhp - ****ing fast BUT useless as a roadcar - currently having engine rebuilt
see pic here

of it in rather exotic company as it is going through another engine rebuild

wheres that being done - DK ?

ive got a breaker e28 coming this week, anything u need on the cheap ?

Dominitry wrote:I know, i should have stayed on lfs lol.

ah, so thats where u keep disappearing to

Contary to popular belief u can fit a 325i head onto an Eta bottom end, use 325i inlet manifold,AFM and ECU. The peron who did this and has it running calculated the compression ratio to around 9.5:1 iirc. If all this is true then u would be a fool to use a 320 head! simon is correct. i believe and...

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