Pete

Porbably been asked before i know.. what,s there limits (SAFELY) and what could you get power wise with a turbo change??


I,m NOT changing yet, just curious...

banny sti

iTrader: (68)

The engine has been run up to 450bhp but to err on the side of caution I would not go beyond 420/430bhp with the standard bottom end.

Banny

The Chief

I know someone who is running nigh on 500bhp and (so far) has not had any issues and he drags it and takes to the Scooby Shootout

Pete

****, that MUST be pushing them VERY close to going pop..

420 seems more reliable for me, with what turbo would be best for that?? wouldn,t fancy any, or much lag tbh....



Edited to ask,

What power is the top mount good for??

frayz

iTrader: (7)

Lol, its all downhill from here.

Our phone convo is out the window then

Pete

Lol,

Hi Frayz, mate, it,d only be a turbo change if i decide, i,ll wait til it,s mapped on the twin Scroll first, have a few months at that then see how funds are...

rickya

iTrader: (18)

390 bhp approx with std Turbo
New Turbo..... who knows till it goes pop??

Pete

Lol,

**** the pop bit, SAFETY for me, mind you, a Spec C running 350-360 i bet isn,t shy..

rickya

iTrader: (18)

360 to 370 bhp, thats where I d like to get to first with full exhaust system; 3 port boost; panel filter & remap. Then after a while think about turbo upgrades maybe

MrRA

Doubt you'd see that on the standard VF36.

The Chief

Dale's Spec C hit 396bhp on a Smacs RR day - now of course rolling roads vary greatly, but mine was pushing 229bhp and apart from a STi backbox was totally standard.

Dales was running a standard turbo at the time

.:: i-Gallery 4.1 - Photo Viewer ::.

Pete

What Spec Is Dales??

Shaun

I could get 400bhp out of the standard VF turbo, but I wouldnt be doing that on straight pump fuel.

Pete,
DON'T even think about going stupid horsepower if you are thinking of keeping this a road car. You should know above most, what that means in real world driving.

If you must mod, go for what you can get out of the standard turbo with the basics of a remap, K&N panel filter and 3" decat (if you want the most). If you want more, then at least wait until Litchfields have completed the testing on their new 400bhp twin scroll turbo.... which was awesome when I went out in their development car the other week and that was in a full weight MY08 STi. It would be even better in a Spec C.

If that is not enough power, consider a larger single scroll turbo, but if you keep a standard bottom end... don't expect it to last indefinately if looking at 430bhp+.

If that is not enough, go for a 2.5L built engine and a whopping drop in turbo or rotated.

Above all else, stop asking questions about power. Get the brakes and suspension sorted first, along with a whiteline handling kit and geometry, then take it on track and learn how to drive the thing first!!!

If I see you Sunday you can come out for a quick drive in mine.... that may be your wrong doing though, so I might have to refuse.

The Chief

I drove a Spec C pushing 360 (ish) and it was for road use plenty fast enough and had a lovely spread of torque.

If its for the road driveability is key (imo)

Shaun

I second that!

Pete

PMSL @ Shaun,

You know me TOO well...

As said mate, i,d be more than happy with 350ish and 330+ lb/ft, just really wanted to know HOW far/much the standard internals will cope with..


You know yourself mate what it,s like coming from BIG bhp cossies etc...

I,ve said since owning the car, thye,re simply AWESOME, and i,m sure @ 350 odd they,re MORE than capable of matching most cars on the road.....

frayz

iTrader: (7)

Youve always regretted the silly mods mate.

Get the handling sorted and go for a solid 350/360 ish.

If i had my time again, i think thats the way i would go with a spec c

The Chief

The thing is a Spec C is a superb car out of the crate and just a small amount of fettling with the handling and a remap will make a devastating road car - Immy from PCM let me drive his brand spanker and i was blown away on how good they are.

i want one

Pete

Fellas,,

Be honest, is the handling mod really neccesary?? i mean imo the car is stupendous now for road use, i think i,d go AP`s first over handling.

I hear what Shaun is saying and rightly so, but i,m not a big track man tbh after having a nasty off in my M3..so i,m happy with the handling as it is..

The Chief

Does a Spec C need uprated brakes, i thought my eyeballs were gonna pop out when i used a Spec C's brakes in anger, saying that i had come from a classic

Pete

Well i,m probably biased (spelling) i,ve had AP 6Pots on my last 3 cars with 362mm discs and believe me, Bembos fell like Astra 1.3 brakes compared..

The Chief

Been at Oulton park in a Classic with AP's and they never faded, Spec C's brakes felt great to me though.

gussy

iTrader: (2)

Staffi as you know mine is running the powerstation 400+ kit which makes it a very capable/quick road car its Ideal for trackwork as well with the hybrid twinscroll turbo that is on it,it gives great spoolup low down and no lag and as Shaun has said get the handling sorted which is worth more than any bhp. Im lucky in that my car is an RA so comes with all the nice pink handling goodies from sti as standard,the only reason that that I changed the brakes to PF items was due to lack of brakes after 5 hard laps round croft and I was having seriouse brake fade.

Shaun

Standard top mount is good for over 450bhp on a road car.

As regards to a Cossie with big power.. Yeah but what about the handling compared to your scoob? Straight line power is for ******!

As regards to the handling mods. Drive a car with them and one without. If you are not impressed with the difference you should of bought a push bike!

The Chief

Dont you ever sleep?

Agree when i first bought my Scoob i asked a lad at the club how to make my car faster - he replied 'make it stop and go round corners before you even think of upping the power' wise words indeed

Pete

Fellas fellas, i DO know about cars you know.. probably had more quicker cars than most and yes i know about handling, braking etc, all my thread was about was asking what power STANDARD INTERNALS cope with, i,m NOT throwing £££ into the car, NEVER will again, just a map, exhaust, brakes will surfice..

TonyBurns

iTrader: (3)

If your just doing a remap and exhaust then you wont have any problems as Gussy said, the 400+ pack he has on his RA isnt giving the engine any problems

Tony

dynamix

iTrader: (3)

Std Brembos are up to the job with proper discs and pads. No point in changing to AP's unless you want to spend the money.

Still running std brembos on mine.

Power - dont get greedy - stick with the std turbo and set yourself a ceiling of 400 even though the std turbo wont get there.

Getting over 400 bhp gets very very expensive. It is right at the sort of point where a lot of things are at or approaching their limit so you have to do them all.

Floyd

iTrader: (9)

Duncan is correct!

dynamix

iTrader: (3)

You realise that I am going to have to sit down now Floyd

See you Sunday fella !