my car is running twin t25 turbo's and im changing it to a single turbo i have a gt45 turbo to go on but my manifolds are to fit t25 etc what would you do is there a flange to fit the gt45 or would you just make a new manifold to suit?

 

GT45???? You are aware that is a 1000bhp turbo????

As you can't get an internally gated GT45 you'll need to run an external wastegate for boost control, the external wastegate take off will need to be integrated into the exhaust manifold. Plus if you are going for a GT45 i strongly suspect you'll need alter its position for clearance... I'd suggest getting a manifold made!

 

yea thats what i thought im going to run it on the passanger side and remove my battery and battery tray i have the scimatics of what i need to do with the manifolds and downpipes just alot of bending and welding i know its a 1000 bhp turbo but i already have it so might aswell what kind of bh u reckon that would put out at 20psi? for example

 

I hope you are upgrading the internals as wouldn't want to bolt that snail to anything thats not a fullly specced engine.

What car is it ?

 

well what engine is it for a start, its most likely you will need a t6 flange on your manifold with 32mm runners

 

well im running a 2.9 v6 which are solid anyway but yea forged pistons big valve low comp heads etcetc lol will be fun though

 

gt 45!!! overkill perhaps?

 

'Solid' they may be... 'Solid enough to run 600-700bhp at 20psi' they ain't

 

 

na like i say i already have the turbo so ill run low boost and see how we go i mean the skogenracing lads run stock engines with bigger injectors m/s ecu with these turbo's and getting around the 400bh mark

 

Personally if it was my car i'd be putting something more T4/GT30 sized on as a single turbo and stock engine, should be nice and responsive as well as making the same power!

 

Will be horrible to drive imo all the flexibility and sharpness from your twin setup will disappear into thin air with that thing on it.

 

lol yea well if it does'nt work ill just change the turbo at least everything else will be done

 

Other than the fact that a T6 entry flange (for GT42/GT45 frame units) will be on the manifold and a sensible sized turbo will have a flange around half the size...

 

yea thats no problem as ill make a manifold flange that can be exchanged for others so not too much of a problem,pretty simple set up realy should have it done in the next month or so would be quicker but due to work its finding the time

 

laaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaag lol

 

lol probebley well see it was meant for a skyline but the lad could'nt get it in the engine bay and did'nt want to mess about lol

 

a gt45 wont hit 10psi on your engine till about 6k id imagine, you will run out of revs before you hit your target boost lol