I think this is the code for his box Ty754TALKING BOLLOXVNAA


Dougie

 

have a look here Manual transmission ratio chart

 

Sorry pal if your if your being straight with your saying, but it sounds like you've bought your car from a right dreamer because it will never do 140 in 4th, if its a import you will probably be topping out in 5th at 140/150.

Cheers Dougie

 

lol theres always one complete t**t, i dont care what you think mate , i know what its capiable of doing,
any way thanks for the chart mate

 

im sorry to be so crude but it really annoys me when i get told im talking bull, i can promise you it does 140 in 4th,

 

With that code it wont be an sti box, there are some that will do about 130 in 4th with an sti rev limit so with the over reading speedo i could see 140 in 4th being poss

 

Ok lets get to the point, there's no way your car is making anywhere near 350bhp at 1 bar. I think we're all agreed on that.

Now on to your original question. If you're wanting 400 - 450 you're going beyond simple bolt on mods. As a bare minimum you'll need to replace the rods that are in there at the moment. Standard classic rods are gash. The STI forged pistons are OK but lighter and stronger aftermarket ones will be the way forward.
You'll need to replace your gearbox if its standard. If the gearbox is noisier than your mates then it might have a PPG or similar in it which would be a bonus. Fueling, you'll need 740's and I'd advise a full reversed flow parallel rail set up. Its not essential but it does improve things. You'll need an aftermarket fuel pressure reg (sx, Fuel labs etc). At the sort of power your looking for you'd be better off going Mafless so budget in a grand or so for a simtek ECU. You'll need a decent clutch at that level so anything upwards of £500 for that. Now that figure can be achieved for alot less but its making the car reliable at that power that's going to cost money.

My advise is don't skimp or your car will costs you thousands and will me more often off the road than it is on it.

 

my wrx pulls 140 in 4th, GPS!! and then the gps crapped itself at 160 and still pulling, mines got a later uk box in, maybe thats wot his is running?? give the bloke a chance!!

 

when i bought the car i had been told it was involved in a prang, it had no four pots and 2the dccd never worked, so could it be possible that its been replaced by a wrx box?

 

sorry for hi-jack, daz can you explain the reversed flow bit quickly, in process of buying fueling bits for my rebuild!

 

There's another giveaway about the power reading. If it is a standard WRX box it would of sh*t itself at 350bhp.

Hi Bob

No worries,
On the OEM fuel setup the fuel enters the rails at the front i.e nearest the front of the car.Then each injector is fed inturn. Reversing the flow improves the feed to the injectors.

A Parallel setup improves things further. Not only are you feeding the injectors from the rear but you've split the main fuel feed and are feeding both the rails at the same time instead of sequentially.

Here's a diagram of my set up if it helps

 

You need to read up on ratios then, my ppg gearkit at 8250 woulbd be approx 160mph in 4th!

 

im going for around 400 now have been given some good advice and on what mods are needed etc ,i have an uprated clutch not sure of the make of it, sorry if im offend you few , but all i stated what power on paper i have etc

 

Damo its ok, but it does sound like your car has been changed from Std parts, so its hard to guess whats what.
The 321H is a great turbo for the Type R

 

i have found one second hand which im enquiring about mate , and back to gearbox lol first gear does feel like the box is about to go bang when driving hard

 

Could you do that with 350bhp as stated by damotyper


Dougie

 

I'm sure your box does 23,000rpm in 1st or it equated to that

 

Not really sure on your last question.

Last box I blew up, just started rattling on my was to tesco's. Then it made a loud bang on a full boost(1bar) gear change from second to third.

It was one of my "what'll happen if I do this" moments. I could have drove it home had I not done that.

 

Just whack the boost up to 1.8bar and hit the same rollers and you will have your magical 450bhp ish

 

Lol yeah Steven's probably does its just 2nd and 3rd that sometimes dont spin too well.

Dougie

 

LOL Steve, cracking

 

PMSL

Dougie

 

lol like a said im not braging about my car but if you would like to see the print outs your welcome to a copy , and who would like a video of the 140 in 4th ??????????? its funny you all take the **** but i though this forum was to discuss about subarus, modding and helping each other out etc ...

 

oh and it was rollerd by dastek, which i was told to take there by one of you lot

 

I can show you a printout of mine for 320bhp but it doesnt mean its that power! Your not wanting to discuss your car as you have already made your mind up


As for 450bhp, uprated engine, uprated gearbox, new turbo, bigger injectors, aftermaket exhaust manifold,new ecu and a few other things and your sorted

 

We're not taking the ****. But I think you need a slight reality check. Making claims that you reasonably standard car is making 350bhp at 1 bar is opening yourself up to the sort of responses you've been getting.

There's been some good advise here. Some of it from people's experiences.

I'm no expert but I know enough having been where you are about four years ago. I'm now in the process of building a 600bhp motor. You should start listening to people who been down the path you're about to tread

 

i know i have been given some good advice , but i am only stating what it was on rollers and yet i have been told dastek are pretty good ,but for now on il tell people with my mods it 279bhp and it was rollerd on some bean cans

 

279bhp is more realistic.

 

On a Gt3076, your having a larf

 

sorry just over 200 as its got the uk spec box lol