cosie has a rather risky way of running at full advance,but he can tell you about it.

I have found Stars rollers very consistent,which is the main thing.the highest standard car I have seen for my99/00 UK's is 220/225.results from earlier star days can be found at www.scoobymods.co.uk although they do favour the EVO's.

 

Steve,

"I can stroke the engine, but I dont think I'll get more than an extra 50bhp/torque out of the engine as theres always a limit on the advance you can run, and the maxx feasible boost would be 1.8 bar, which would probably see me up in the late 300's only..."

Why, based on what ?

You can get far more out of these engines, but there will always be drivability issues.

An EJ25 based engine is a good route, but I wouldn't bother stroking it. This leads to a whole host of other issues. Stick with the 79mm crank.

Mark.

 

Steve where do you get 1.8 bar from?

surely this is entirely component and turbo dependent?

I know of several 2.0 litre cars running upwards of 2.1 bar boost in the midrange and getting well over 450lbft. And they have been doing it day in day out for ages.

 

Adam/Mark

Given I have not seen or heard of anyone running anywhere near those sought of figures (especially 2.1 bar) I make that comment.
You are of course correct with the components - fairly obvious - I assume you are speaking rhetorically...
That said I dont currently know of anyone running on a 2.6 litre engine either, without having had issues - I certainly dont want to be running with a Dog Box - but I recall that Mark was looking into this...

Was'nt Craig running somewhere around the 1.8 bar mark in the end?

So Adam - whose got the power you are talking about - or is this our friends in Australia?

I certainly dont want to lose the current driveabilty I have and certainly dont want huge turbo lag, from say adding an enormous turbo to get peak power gains

I'd go straight ahead and do things - but then I've never headr of a success story and dont want to just throw thousands at something for nothing - we all know of the issues that Craig had with certain companies and so called tuning companies - Pete Connelly excluded

 

Steve I was talking about group A and wrc cars.

High compression will give you the torque you want as will high boost, and he VF15 is hardly a big turbo so doesnt suffer a lot from lag. Antilag is always nice though.

I dont know where you keep getting this 2.6 from, even stroking a 2.5 doesnt really give you 2.6.

You do seem to have a conflict of interest though. If you want massive power, you are going to have to uprate your gears in one way or another. I dont know of many uprated gear sets which arent dog boxes, so get used to it!

 

Adam

But does'nt the VF15 cost a fortune?

2.5 to 2.6 - we all know that it wont exactly give 2.6 but it aint that far off and does it really matter - other than the fact that you can get more power out of a 2.5 than a 2.2 litre kit - or not? - dohhhhhhhh

As for the gearbox - there must be a company out there that will make one that is not a dog box.... but then were presumably talking plenty of money again

I ddont recall the Cossie boys having dog boxes with huge power - but then perhaps they are much stronger to start with.. - perhaps I am wrong, as I'm only speaking from memory a few years back..

Powerstation fitted 2 uprated turbos to a Skyline R34 the other day taking the power to 420bhp - this was with only a few £k of other mods before than running 1.2 bar boost and catted - the more I think about it the more I think I should get one of these and stop faffing about with Scoobs................. especially as they are fairly cheap second hand from Japan. compared to the amount of money I would need to throw at a Scoob.

 

Mark, Dingy et al

I have never knocked the products BPM market, but did draw the line at reading that they were responsible inventing the Impreza exhaust... although they came along a little later than most of us. As Dingy said "full of ****".

I had indeed forgotten about Craig's car. I have never seen figures for it, but its a quick one and would indeed be in there.

I was thinking of the "usual suspects" actually... Bob R, Andy T (now retired), Top Cat, Steve Mc, Trout etc. Then there are the owners like Mark's friend Alan, who aren't on the net (or who don't post on the various BBS's). Impressive figures, by the way. All of these cars are over 340, most are over 350.

But you are missing point. The whole thing came about from a thread where Greg told i-Club that BPM had invented the "full system" for Imprezas. When I reminded him that plenty of UK companies had been making them before BPM existed, he replied with a challenge.

Of course we have been there and done that. This was in the good old days when Mike Tuckwood was importing BPM, both Graham Goode and I having turned down his kind offer of us to sell his bits for him. You and I were at PE that day Mark, watching the show, keeping our distance. Neither cars arrived due to some mechanical failure or other. Mike did come along, but his cam belt was suspected as being a tooth out, as his figures were lower than expected.

Mike's exhaust went rusty so he dropped BPM. Then there were all sorts of comings and goings... Autosportif, NAM, BR Developments, even the Scoobynet shop, but I think Pete Connolly at C&K is the only person to have stuck with it.

Greg is doing exactly the same in the US as he was doing here 4 years ago. Oh for a marketting degree

Dingy, were your company to claim to have pioneered full exhaust systems for the Impreza, I am certain there would be a large after the statement.

Mark, there were some rumours of you having some very big figures on a bench dyno. What happened to that one then?

 

Steve,

420bhp in a skyline is certainly much easier to achieve but then you lose out enormously when it comes to weight. this affects you both in a straightline but more importantly around bends.

even the most svelte of R34s is still 300kgs heavier than your average scoob, and that is a hell of a lot!

about the weight of craigs new car .

If massive horsepower and straightline performance is all you are after, you should join with kostas and get yourself a supra.

 

Kosta's?

The man with the 346bhp Scoob........? or not?

Take your point about weight, etc, oooohhh what to do? (no stupid comments..)

You mean Craig has a Golf diesel, or is that someone else?

Re Petes comment - BPM exhausts - the first had rusted through in no time and it was only on changing to the Scoobsport downpipe that I started to realise some of the gains from my car...

 

Pete,

Some of us just felt that the statement you made, in the "context" it was give, was a little misleading. Whilst I appreciate you didn't "state" that the "4 cars" used your whole system, it was implied, given the nature of the thread.

The last time we spoke on the phone, you accused me of berating your downpipe on the bbs. I have NEVER done this. If you were implying that by comparing the results of the Scoobysport d/p, to that of BPM, on MY car, showed that the BPM gave more power above 5000rpm, and yours was superior below 4000rpm, was in some way knocking your product, you are wrong. Oh, 4~5000rpm, they were nigh on identical.....

And for the record, Alan is using your d/p because I recommended it, even though my old BPM d/p was sitting in the garage gathering dust.........

As for my engine, well you know what rumours are like Pete

Mark.

 

just to add a little bit to CC claims. his car is the fastest car i have ever been in!! faster than my 330bhp/310lb/ft scoob, and faster than my 330bhp/315lb/ft evo7.

i think the reason it feels so frecken quick is the fact it has got such a short gears and very high torque figures. it is very impressive. i think my evo will probably need around 380/350 to be in the same par!! but what the hell something to aim for


because of the short gearing the car will have high paw figures and low transmission losses figures. so that is why the figures look slighly strange. apart from that this rollers are among the most conservative in the country and certainly not as inflated as pe. never seen a standard scoob with an exhuat and filter ever producing more than 230bhp!! my scoob with bob rwale map running 1.25bar, full exhaust and filter only put 245bhp and 270lb/ft in more than one occasion.

one thing andy does not mention is that he has been tunning/building cars for a long time, cossies, sub ten secs 1/4mile things etc.. his tunning is a little different and he definitely ain;t scared to push things right to the limit. and i mean right at the limit!!

sam