Turbo's

[tom172cup]

I have had a search but nothing has provided the answer.
having had my supercharged cup for a while now and having great fun in it. I'm after some more power (again). Having spoke to a few people about fitting the bigger Rotrex we came to the conclusion it wont fit without a massive amount of fabrication. So i have decided to go down the turbo route. what im after is a list of turbos that will allow 400hp and still fit with relative ease.
I also want it to have a screamer pipe and external wastegate if possible.

 

[Coops Mk1]

anything above T25/T28 hybrid i think you'll start to struggle for clearance on the bulkhead with log manifold, so your probably talking 5 GTT style, turbo where battery is job to fit a T3 series turbo

 

[Luke.]

As above, behind the bulkhead will be a struggle so custom manifold (unsure if anyone does them) bigger turbo then a GT28 or any other suggestions..

 

[scotty2hotty81]

http://www.cliosport.net/forum/showthread.php?279526-Renault-5-gtt-172-172-turbo-Project

Leaf-book

 

[tom172cup]

I was thinking of a custom tubular manifold. I know space is going to be the issue

 

[DannyR]

Custom manifold over gearbox is the best way.

 

[Laine_16v]

2871R is going to be your best bet on a log manifold. T.Trophy managed 371bhp with that setup.

Custom manifold is always going to be better, but if your working to space constraints you'll be limited to a T2 style flange.

 

[Luke.]

2871R is going to be your best bet on a log manifold. T.Trophy managed 371bhp with that setup.

Custom manifold is always going to be better, but if your working to space constraints you'll be limited to a T2 style flange.

2871R is right at the limit at 400bhp better off going bigger..

 

[scotty2hotty81]

Gtx35 on a custom manifold over gear box :evil:

 

[tom172cup]

so moving the battery ecu manifold etc. over the gearbox is the best bet for position i presume?

 

[Luke.]

GTX30 over the gearbox

 

[Laine_16v]

ECU lay flat on the battery tray. Battery in the boot. Turbo over gearbox.

 

[scotty2hotty81]

You will also have to think about heater matrix pipes, coolant bottle and power steering pipes/res this is what put me off a custom 4 branch.

 

[Chip-mk1]

Gt3071r with a .82 exhaust housing is what I normally use on a 2 litre for 400bhp

Will be pulling hard by under 4k and still have plenty of go when you max the engine rpm at just under 8k

You'll need a decent manifold though

 

[domsclio182]

What power are you running at present Tom, sorry bit off topic.

 

[tom172cup]

Gt3071r with a .82 exhaust housing is what I normally use on a 2 litre for 400bhp

Will be pulling hard by under 4k and still have plenty of go when you max the engine rpm at just under 8k

You'll need a decent manifold though

Thats the turbo i was looking at Chip. any ideas on a "Decent" manifold or will that also be on a custom jobbie

 

[tom172cup]

What power are you running at present Tom, sorry bit off topic.

was around 330hp on some rollers but a lot less on others

 

[Chip-mk1]

Thats the turbo i was looking at Chip. any ideas on a "Decent" manifold or will that also be on a custom jobbie

Yeah, custom one mate, the standard megane one isnt up to it IMHO

 

[Goodj]

Turbo AND Supercharger?

That would be something of great magnitude (and minimal lag)

 

[tom172cup]

will have to have a look around for somebody capable to make one then. im at combe tomorrow so i shall rack your brains there lol

 

[bill]

how long has it been supercharged and has it been reliable out of interest?

 

[tom172cup]

how long has it been supercharged and has it been reliable out of interest?

18 months and not had one issue with the charger mapping. It has also had some serious abuse too

 

[Laine_16v]

Who did the conversion and mapping out of interest?

 

[tom172cup]

Who did the conversion and mapping out of interest?

Ktec have done it apart from build the forged engine

 

[bill]

This is a very temping upgrade for the future! nice to know its going strong, you hear some horror stories,but then people only post when there going wrong.

 

[tom172cup]

This is a very temping upgrade for the future! nice to know its going strong, you hear some horror stories,but then people only post when there going wrong.

Will be up for sale over the winter