was reading a thread on here a couple of days ago (not sure which one now) but it said something along the lines of if you address the weak points of your engine then you'll be surprised what power you can get out of your engine.

now i don't know that much about technical parts of cars so if wanted to get some big hp increase in my car what weak points would i need to address?

and what gearbox would take over 400hp.. and how much could it take as i really don't wanna have to go down the line of a 6 speed conversion.

feedback would be app. cheers

 

Whoa.

First of all "big bhp" means **** all to anyone round here. Could be 300bhp, could be 700 for all we know so put a number on where you are hoping to get.

Secondly, in order for the answers to make any sense to you, we obviously need to know what car you're starting from.

Would also be worth you telling us how much you have to spend.

 

haha sorry i'm useless i have an import sti version 3 and ive already had fmic, walboro pump n straight through exhaust.. running 330hp at the moment and ideally id like 500hp. but will probably between 2500 and 3000quid to spend. now im not expecting to get 500 but anything over 400 id be happy with... i don't just want a stupidly fast car..i would like a strong reliable one. does this help mate?

 

You will need to rethink either the budget or the target.

Budget £1500 for a gearbox capable (second hand) + fitting
Budget £1000 for simtek (or similar)

.. that's the budget gone before even getting to bits that will increase the power.

 

what gearbox would that be then mate?

i think i'll have to rethink the target then because i need better brakes and to go big hp i'd need a hyper clutch too...

 

6 speed from a newage sti.

 

6 speed will be kinder on fuel consumption on the motorway aswell wouldn't it? i'm quite liking that!

 

DOn't foget brakes and clutch improvements

 

they are fiirst on my list mate i don't know whether i should upgrade from 4 pot or not though... if i just put drilled and grooved discs on with yellow stuff pads will they be good enough?

what clutch would be good enough though?

if there's one thing i did know about cars, it's that the first i needed to upgrade was clutch and gearbox otherwise i'd just be replacing them everytime they went bang lol

 

PMSFL I wish I could get 500bhp for £3000

Clutch wise exedy twin plate will set you back say £1400 or you could go with a cheaper option of an act clutch which will be about £600, Duncan is quoting good prices on gearbox and simtek as I don't know anyone that would suplly and fit either of those for that price

for 500bhp I would budget £15k and thats not with quality parts unless your buying 2nd hand

 

well there is £5k gone and thats if you can get them that cheap fitted

 

Yes had a giggle at 3k for 500bhp damn new brakes would eat most of that up and the engine rebuild.... 3k may not be enough there, then the gearbox, clutch, turbo, fmic etc etc etc.
Sell the version 3 and get a UK STI, 3k will get you 400bhp on one of those

Tony

 

Basically anything above 350bhp is going to cost you big money and even at 350bhp the torque may well eat your gearbox and clutch.

Brakes.... forget about using the subaru 4 pots, even with different pads/discs (and forget these drilled ones, those are for boy racers with a 1ltr corsa who have no idea what happens when you give them stick, ie they crack between the drilled holes, hence top end performance car discs cost you 1-12k for proper "cast with the hole in them" discs).

Go with Mr Stevebt's quote of 15k, anything above that 350 and thats what its going to cost you in a classic.

Tony

 

I tried going down the performance friction disks and pads route with my brembos, I had to pull them off and put AP 6 pots on and lost a fortune on selling the PF stuff even though itonly had covered say 2k miles as they just weren't up to the job. I never worry with the brakes I have now and feel quite safe

 

thanks for a having a laugh at my expense u w***ers hahaha.
as with most people what i want is always too far from what i'm gonna get! those hyper clutches are way too expensive so i'll have to look into the act one... i've already got a fmic so i'm alright there. at a push i should be able to get 6 speed gearbox, simtek ecu, new discs n pads and the clutch.. either way i'll be looking at an improved car which is never a bad thing... i just need to stop dreaming and think realistically

 

Injectors, mapping, new fuel rails, headers, etc etc they add up quite quickly

 

Yup, MD321h turbo, injectors, ecu and map change the gearbox if it goes and that will get you a nice 400bhp

 

hmmm sounds tempting the gearbox will only go though if i put my foot down all the time though won't it? if i drive normally most the time which i do the gearbox wouldn't really feel any difference in power or i assume thats the case. is 400hp the absolute limit then for stage 1 exedy clutch n sti gearbox? cheers for your input... it's been a big help!

 

400bhp on a classic is already way more than is needed for public roads. You only need more than that for competition purposes IMO.

 

i will be doing track days.. most importantly nurburgring i'm not saying i'm an amazing driver or anything but i feel pretty capable of handling my car.. if i wasn't capable i would have been in a few crashes by now (not my own fault)

plus i'm just addicted to straight line acceleration.. got some decent empty dual carriageways round by me so i have been known to go out 3/4 in the morning purely for this

 

If you're addicted to straight line acceleration and enjoy high speed driving on empty roads late at night, buy a bike

 

Might feel a bit different when there's twice as much power in it.

Eh? Just because you haven't crashed yet, that doesn't in itself mean you're "capable". It might just mean you're very slow.

 

i hate bikes with a passion mate... was on the back of a ninja 636r and they just so bloody dangerous! not a fan at all

 

i'm anything but slow lol... put it this way whenever my car has ever lost control at high speed then it's always back to normal asap but i don't treat my car like ****... it gets treated very well

 

The car doesnt lose control, the driver does

Tony

 

oh dear its going to end in tears.

 

no it won't end in tears.. i'm not stupid enough to go tearing down some country roads at silly speeds...unless i know the road but i still won't go flying round the corner.. i like to ease into the corners slowly.. it feels a lot better that way and you can accelerate out of it... i'm not an idiot haha

 

Fair enough, would have been the cheaper option though.

 

is it me or does every one who buys a scoob nowadays wants to take it to 500bhp.its not a cheap thing getting a car to 500bhp with all the other mods in place aswell such as good brakes,suspension,tyres,and so on.i wish i could turn back the clock 3 years to when i had my first remap and the car was a nice 330bhp and left it at that.beleive me i would be spending xmas layed on the beach in the bahamas now with gorgeuos babes feeding me grapes and topping up my drinks.

 

i am not talking about your driving ability, i am talking about what you want for an outlay of £3K. you will be bitterly disappointed by how little £3k will get you.