SleeperSy

Hi All,


I have a Subaru with 575BHPish- It is currently fitted with a 5 speed gearbox with PPG straight cut syncro 1-4 gear sets, billet selectors and a quaife ATB LSD.

Im not sure I can live with the gearbox wine/noise on a day to day basis.

So I was contemplating changing out the straight cut syncro gearsets and fitting Helical cut syncro PPG gear sets to 1-4.

Or

I also have an STI US spec 2004 6 speed with DCCD and rear diff. I know this will not take 575bhp for long.

My questions are:

1. Will the Helical PPG gearsets take 575bhp?
2. Any recomended gearbox builders?
3. Does anyone make upgraded helical syncro gearsets for the 6 speed box?

Any constructive information will be most welcomed.

Thanks


SleeperSy.

stevebt

iTrader: (8)

have a word with paul at ZEN performance

SleeperSy

Thanks Steve,

I belive he did the original box, so Ill give a call on Monday.

vulnax999

iTrader: (7)

and ?

I believe your 3rd went at SSO ... did you change before or after?

911

Are you sure Sleeper is for real, or is his car now a touch different to his 'Veiw my Scooby'?

Playsatan

iTrader: (2)

He's for real Graham.

As mentioned he ran at SSO and his car is a serious piece of kit.

ukbob

check out transmission page on RalliSpec Ltd. some interesting options.

banny sti

iTrader: (68)

Graham he bought Alan Garrod's old beast!

Banny

Fangoria

iTrader: (1)

What has AG got now then?

stevebt

iTrader: (8)

since it was alang's old car i think he is for real view my scooby means nothing its there just for a laugh

911

Thought so, but sometimes you never know!
I don't do the SSO and such events so don't know the players.

Are there any details of the car anywhere?

Maddog

Still in his "View my Scooby" profile.

WRXTek

I dont see why the standard STi transmission cant take that power. I might be wrong

911

Thanks, now i remember the car. Sure is nice.

WRX: It will be the torque that would kill the stock box. Mine is ok at 360 lbft so far.

scoobyDAZZA

might well be

DesR

I sent a mail to PPG regarding the torque rating for the helical kit and got a rather unhelpful - it should handle 500 to 600 bhp but if you are doing launches etc, we recommend the straight cut... so I guess the question is what you are planning to do with the car in the future....

P20SPD

iTrader: (1)

and if your doing drag launches like i seem to do, they recommend the straight cut dog gears.

M0NEY

I spoke to Rigoli boys a few time in Aus and they said they had a few 600bhp cars with standard 6speed and still holding up.

Will 6speed deffo not take it?

JamesF

How long have you been running 360ftlbs as I have 340 and my box is a bit winney on run down on 3rd and 4th and it's only been running that for 6 months (cars 3 years old having covered 28K) and not been driven hard/had track days etc.

James.