To keep up with a 330bhp classic your needing 370/380bhp in a blob, I had my classic for over a year at a little over 300bhp and finaly at 330 odd for a bit, but even at 300 it was alot faster than my current 340bhp blob... almost 2 secs quicker to 100mph ! do the math power to weight = a BIG difference im wanting to tune my new car to 380/400 bhp to be comparable to my classic......not really bold claims, just colourful choice of Metaphors ;)

i am not comparing the blob to the classic, i was comparing the M3 to the classics/newages, i understand the classics are alot lighter however "blowing" away M3's is pretty optimistic i think.

Whats the weight difference between an early classic and a newage?? Someone told me around 600 kg??

That's good to hear because I also have a 360bhp Spec C! :D

Isn't the E90 the 414bhp version, would have thought it would have the advantage?

no way near 600kg thats for sure

The other thing to consider is how a Impreza and a M3 puts the power down.An M3's power is all top of the rev range and to get the best out of it you have rag it.

A M3 has only 269 ft lb of torque and i did hear that not all M3 S54 engines made 342bhp out of the factory anyway.

Thats what i thought, if a classic is around 1260kg that would make a newage nearly 2 tonnes!! I know they are lardy but not that much surely??

think they are around 1450kg? i could be wrong

1440kg for most blobs newages, 1320/1350 odd for a spec c
1175kg for a type R or there abouts 1240 to 1270 for most clasics depending on type, wagons are a little more nearler 1280/1300 spec dependant again ofc

so 200 odd kg difference or , 3 fat f£uK£$ in the back !

A mate of mine put his sti ra on his works weighbridge and weighed bang on the 1260kg mark and we were discussing the difference between our classics and the newage for power comparisons, i.e what you would need in a newage to keep with a well set up classic

I shouLd add his ra had twin 12 inch subs and enclosures in the boot along with amps wiring etc, so not far of the type r weight with all that removed i reckon

sounds bang on, this would be a "wet" weight ofc , ie fuel /oil/fluids etc

YeH sorry, should have clarified that when i asked, he had half tank of fuel in her at the time.

I better get weight saving with mine then!!

lol. ;)

A bit less than 150 kg for a UK WRX/JDM Spec C or 250kg between classic and UK STi, roughly.

UK WRX - 1385kg
UK STi - 1495kg
UK classic c1250kg, a bit more or less dependant on model, JDM RA 1170kg.

Not sure if the 40bhp typical differential is perhaps UK classic to UK WRX?

Anyway, M3, not yet had a play with one yet in my 360bhp 1390kg Spec C (Litchfield Type 20)!

Andy

At 2.2lb to a Kilo I wonder if he meant lb,s instead of kilo,s when he said 600, would have been in and around that figure then?

Still, best part of 200kg is a fair difference.

Interesting to see a 110kg difference between wrx and sti, the sti being the heavier of the two? I would have thought the other way round to be honest.

Think it's mainly down to the difference in weight between the 5sd box and the Sti's 6 sp. It's a very strong box though!

Overall, the downside for improvements in safety and rigidity (and resultant handling prowess) is increased weight and therefore the need for more power to reach the same point.

My Spec-C with 357/358 has no problem with one of those lardy ar$e M3`s:D

these are uk hawkeye 2.5 Sti weights andy ?

In fairness, i hadnt thought about the different gearboxes, hence the reason 6 speeds are ripe for classic replacements when going for big power...

There's a massive difference between being slightly quicker and blowing away. No classic under 350 would 'blow away' an M3. Yes it would be quicker but definitely wouldn't leave one standing. Even a lardy M3 is still a relatively quick car. I reckon it would give a standard blob STI a good run for it's money.

No, blob. However, you might expect a significant weight difference for 500cc more, but I don't think there is. As I understand it the 2.5 is essentially a rebored 2.0.

From memory i think there is around 30KG difference between the 5 & 6 Speed boxes

an M3 would beat a standard blob sti i think

Reckon so too. Unless it was pissing down and "on the twisties"! ;)

rule of thumb i've heard is losing 100 kilos is like adding 10% to bhp.

my blob is about 280bhp and it is only slightly quicker than a classic.

rule of thumb i've heard is losing 100 kilos is like adding 10% to bhp.

my blob is about 280bhp and it is only slightly quicker than a classic.

I was chasing an E46 M3 around the Ring when my MY05 STi was running 330/305 and kept with it for about 7 miles, then the Ring Taxi flew passed at stupid speed :lol1:

dont forget drivetrain losses aswell, bm`s will have less.

Slightly quicker than a standard UK classic you mean chap. A JDM car would be quicker than your blob.

Type R's are pretty heavy, they weigh in at around 1270kg (well my version 5 does), early classic RA's are meant to be the lightest, but start adding the things they need to cope with the power and that weight soon starts building up!
Alot of people forget that the likes of the new age STI's come with bigger wheels, bigger brakes, heavier (stronger) gearboxes, that all adds weight, if you want reliability then you have to make it stronger, add those parts to your classic and it piles on the pounds :eek:

Tony:)

PS, the STI type RA is about 30kg lighter than a standard car on paper, less if its a limited.