Dyno day @ Surrey Rolling Road Sat 8th November

[pony]

Gazman tech1 made 163bhp

That link above quite a few standard sports made 163-167bhp range ish given their age and mileage

I thought most 325i would be producing 150-160bhp

[87mtech27]

2.7s don't seem to be making much more than the standard 2.5s. Is it really worth spending the ££ building a 2.7 when you can just use that fund to buy BTB, BBTB, mild cam and a chip?

[jimbom30cab]

In my view 2.7s are a decent step improvement over a B25. Especially with some engine breathing mods.

If you are looking for pound per bhp increase, M52B28 with bolt on mods is the most cost effective way

[leeparkes]

Were these figures from the dyno at the wheels or fly on saturday?

M52 runs on the link below dont add up if others got 222bhp

http://www.e30zone.net/e30zonewiki/inde ... yno_Graphs

Who's driftmonkey posing in the M30 section?
--------------------------------------------------
M30B35 B10 Alpina driftmonkey 257 BHP 285 lbft Alpina B10

Forged custom mahle pistons (high comp)

M5 conrods

Flowed head with hemi combustion chambers

Larger valves

268 degree cam

Remapped ECU
-------------------------------------------------

Thats my engine! stealing my thunder the cheeky Bastid!

[87mtech27]

Also can we honestly believe BMW's stats of 325i producing 170BHP? Maybe BMW was keeping the figure low so as not to steal the M3's thunder...

A magazine (or two) doing a 325i vs M3 test at the time seemed to think the M3 wasn't much faster than a 325i (on the streets).

[pony]

I think 165bhp for 170k mileage is pretty good going

And there were other 325i producing 165bhp and 174bhp respectively

Looking at the old dyno graphs I'm pleasantly surprised a lot of 325i are 160-170bhp

[Kos]

Also can we honestly believe BMW's stats of 325i producing 170BHP? Maybe BMW was keeping the figure low so as not to steal the M3's thunder...

A magazine (or two) doing a 325i vs M3 test at the time seemed to think the M3 wasn't much faster than a 325i (on the streets).

Gearing plus the 325i has more useable torque hence they are quite comparable in the performance stats

Also, 30hp or so will be half a second or so difference in 0-60's

[87mtech27]

Ah... The gearing and torque definitely would have changed made them feel similar on the roads.. Ik on the track it would be a different story a˜a

[DanThe]

Dans M52 made 206bhp with the M50 manifold in the link ^^^ just wondering where the extra 16bhp on the 222bhp ones came from?

Remap

[winx]

My M52 has just got Dan's exhaust manifolds and an m50 intake on it and did 223 on the last run.

[Gert_8]

The article posted by Pony about the M3's (written by Chris Harris) stated the handling on the E30 M3 was great, but even it had to be thrashed to keep up with the 325...?

[reggid]

Also can we honestly believe BMW's stats of 325i producing 170BHP? Maybe BMW was keeping the figure low so as not to steal the M3's thunder...

A magazine (or two) doing a 325i vs M3 test at the time seemed to think the M3 wasn't much faster than a 325i (on the streets).

no way is the b25 under rated

[87mtech27]

The article posted by Pony about the M3's (written by Chris Harris) stated the handling on the E30 M3 was great, but even it had to be thrashed to keep up with the 325...?

I read that in Total BMW mag referencing another mag. I'll try to find the mag when I get the chance and upload it.

[pony]

Retro magazine road test of E30 325i Sport Tech2
http://www.pistonheads.com/gassing/topi ... 1#29734377

[pony]

Retro magazine road test of
E30 325i Sport Tech1 v E30 M3 v E30 325iX v E30 325i
http://www.pistonheads.com/gassing/topi ... mid=213921

[87mtech27]

Can't find it.. maybe it was the Handling Test that Pony has posted.

[pony]

I am at SRR

[jimbom30cab]

what for?

[pony]

Ok I had the New Scorpion Full Sports Exhaust System fitted

Last time
164-165bhp Tech1 Sport although had cracked centre box, Bosal rear box
And Shell V Power Nitro Plus

This time
New Scorpion Full Sports Exhaust System
I had 1/4 tank of Shell regular unleaded

Frantically trying to burn off regular unleaded petrol
Fuel light only illuminated on uphill section in Farnborough
Involved me driving getting lots of evil looks of everyone
I didn't get all the Shell regular unleaded removed.
Them filled up with £20 of Shell V Power Nitro Plus

Charlie said regular unleaded does not help v super unleaded

Anyway the scientific results .... I was hoping for 171bhp (secretly hoping for 180bhp)


....

[jimbom30cab]

Arh, you forgot that scientifically proven fact....the more times you visit the RR the less BHP your engine makes

[pacerpete]

Arh, you forgot that scientifically proven FACT = Scorpion exhausts make noise and little else, innit

[jimbom30cab]

Pony, I heard Pete was selling a Bosal rear box for only £60

Guaranteed to give you 2-3BHP more

Bargain really.....

[pacerpete]

Pony, I heard Pete was selling a Bosal rear box for only £60

Guaranteed to give you 2-3BHP more

Bargain really.....

[bss325i]

Pony, what were the AT and IN readings last time?

It's on the bottom of your graph an this time it was 17 and 16 respectively.

[pony]

I will look at the graphs and post

[pony]

I am gutted !

[jimbom30cab]

Don't be gutted, 2 bhp is nothing and it does sound good

[pony]

Not loud enough Jimbo !

[pony]

Pony, what were the AT and IN readings last time?

It's on the bottom of your graph an this time it was 17 and 16 respectively.

[pony]

What does AT and IT mean ?

[pony]

Unbelievable I have lost 3 bhp !!!!

[Speedtouch]

BP = Barometric Pressure

RH = Relative Humidity

AT = Ambient Air Temperature

IT = Intake Air Temperature

[gooner1]

Unbelievable I have lost 3 bhp !!!!

The good Burghers of Hounslow have just emitted
a collective sigh of relief.

[Gert_8]

Hahahahahhahahahahahs!!!

[Kos]

New cruising music for you Pony