300bhp+ Clio Owners

[DannyR]

Any problems at all?

I know a few are running turbo conversions with this kind of power. Worried about gearbox and clutch TBH and anything else it could effect?

Cheers
Danny

 

[Munson]

That kind of boost would equal big torque, which would crumble the gearbox. Presuming uprated clutch and forged internals, I guess the rest would be ok. Obviously you're going to increase general wear and tear on the entire drivetrain though. Just buy an awesome car that already has 300bhp?

 

[Lagerlout]

But that would be too slow?

I'd imagine you'd have to be as sympathetic as possible to the box to get any longevity from it.

 

[Curtis!]

Didn't someone put a DCi box in there RS as it was stronger in some way?

 

[DannyR]

My awesome car which had 240bhp was quicker than a 400bhp of the car your talking about :rasp:

I may just stay low boost as before then as it was quick enough as it was!

 

[Munson]

My awesome car which had 240bhp was quicker than a 400bhp of the car your talking about :rasp:

So you'll already know all about the lengevity of boosted Clios then. First worst I'm getting 300bhp in my Clio thread ever x

 

[DannyR]

It done 10k on 240bhp absolutely fine. It came to an end where there was no heatshield where there should of been!

I thought it was a good attempt I just wanted opinions of the tiny amount of other people that have achieved it

 

[luke172cupturbo]

ive turbo'd my 172 cup with forged internals and 4paddle clutch running 0.8bar boost now but need bigger turbine housing on turbo to go thurther even tho k-tec promised me 300bhp easy it only managed 260bhp with 260 lbft done the ring and croft like that and no major probs ...but really want an gripper diff, does anyone know the ratio of the standard diff on the 172 ?

 

[Andrew Cooke]

ive turbo'd my 172 cup with forged internals and 4paddle clutch running 0.8bar boost now but need bigger turbine housing on turbo to go thurther even tho k-tec promised me 300bhp easy it only managed 260bhp with 260 lbft done the ring and croft like that and no major probs ...but really want an gripper diff, does anyone know the ratio of the standard diff on the 172 ?

PH1 3.89
PH2 4.07

 

[hughesclio]

you bought another 172 then danny?

 

[T.Trophy]

Any problems at all?

I know a few are running turbo conversions with this kind of power. Worried about gearbox and clutch TBH and anything else it could effect?

Cheers
Danny

Danny I honestly only know of 2 cars running a genuine 300 bhp+, mine and Pauls (RStuning), I've only had a chance to cover a couple of thousand miles since I finished it but it has been faultless so far. The way Paul mapped it means the power delivery is very smooth and alot more linear than when it was at 267bhp. Which I honestly believe gives the gearbox an easier time.

That kind of boost would equal big torque, which would crumble the gearbox. Presuming uprated clutch and forged internals, I guess the rest would be ok. Obviously you're going to increase general wear and tear on the entire drivetrain though. Just buy an awesome car that already has 300bhp?

I'm only running 1 bar of boost which is nothing compared to some turbo cars out there.

Didn't someone put a DCi box in there RS as it was stronger in some way?

Yes mate I run a dci box on mine, I don't think its any stronger but it does have more suitable ratios for a torquey engine

 

[Martin_172]

as above JC5 box from a DCi 80 isn't any stronger than a JC5 172/182 box but better ratios for a turbo car. DCi 65's use a weaker JB3 gearbox

 

[Mark One]

Two things to add:
If you want a gearbox to handle a bit more power that it's built for put in a gearbox oil cooler with a little pump - it can help.
The original post asked about clutches. The standard clutch hasnt a chance at that power/torque. After market clutch is essential.

 

[DannyR]

you bought another 172 then danny?

Very close to buying two yes!

I'm probably going to just go for the same power I had before I reckon as it was reliable around the 240 mark!