advice please upgrade my 60-1hifi or GT35R
#1
Racer
Thread Starter
advice please upgrade my 60-1hifi or GT35R
Hi Folks, my 3.0 turbo rebuild is underway after popping a head gasket some weeks back.
I am putting in new 8.0:1 pistons, 951 rods, the engine has been honed 104.5mm, new/reconditioned just about everything inside is being done
I was previously running a TO4B 60-1 hifi #8 stage 5 wheel bought from Innovative Turbo, I want to go up to a #10 with the stage 5 as my goals are now 500FWHP everyday and nudge 600 when I feel the need.
Problem, Innovative have gone out of business, cant get a replacement #10, dont know who made the original #8 for Innovative, if I buy a #10 from another source the shroud will not match my turbine wheel profile (I think). That would mean a new turbine wheel matched to the new hot-side and lots of hassle. Unless someone knows who has taken over from Innovative?
Other option sell my turbo, its only done a few thous Kms and buy a GT35R. From what I have seen the compressor maps are not hugely different between the 60-1hifi and the GT35R, so other than quicker spool I may not gain that much (again my thoughts)
I would prefer to keep the 60-1 its a great turbo and sounds amazing.
Any advice, am I thinking straight?
rgds
mike
I am putting in new 8.0:1 pistons, 951 rods, the engine has been honed 104.5mm, new/reconditioned just about everything inside is being done
I was previously running a TO4B 60-1 hifi #8 stage 5 wheel bought from Innovative Turbo, I want to go up to a #10 with the stage 5 as my goals are now 500FWHP everyday and nudge 600 when I feel the need.
Problem, Innovative have gone out of business, cant get a replacement #10, dont know who made the original #8 for Innovative, if I buy a #10 from another source the shroud will not match my turbine wheel profile (I think). That would mean a new turbine wheel matched to the new hot-side and lots of hassle. Unless someone knows who has taken over from Innovative?
Other option sell my turbo, its only done a few thous Kms and buy a GT35R. From what I have seen the compressor maps are not hugely different between the 60-1hifi and the GT35R, so other than quicker spool I may not gain that much (again my thoughts)
I would prefer to keep the 60-1 its a great turbo and sounds amazing.
Any advice, am I thinking straight?
rgds
mike
#4
Racer
Thread Starter
thanks I am aware that is made & that the option will work well, the issue is the shroud clearances inside the #10 the tolerance are about 0.40 so using a different manufacturers #10 casting than Innovative used will not fit.
#5
well gt30 and gt 32 are better suited to your set up but you will always be tempted by the better price of the GT35 it's cheaper as it has a handfull of diesel oem applications were as gt 30 and 32 is almost just after market sales .
I realy think you should bite the bullet and convert to the garret rear housing . and for gt35 i would not drop the compression so far you may feel it when off boost .
also the 35 turbine is probably too big it's as big as the stage 5 thing you have now but a lighter and later in aero terms but not different enough.
you could have the housing you have power ported wich may bump it up to a 9 or 10 .
I realy think you should bite the bullet and convert to the garret rear housing . and for gt35 i would not drop the compression so far you may feel it when off boost .
also the 35 turbine is probably too big it's as big as the stage 5 thing you have now but a lighter and later in aero terms but not different enough.
you could have the housing you have power ported wich may bump it up to a 9 or 10 .
#6
Racer
Thread Starter
Adam, looking at the compressor maps for the 30 or 32 they are well short of 600hp, the 35 only just gets there. I wouldn't swap my 60-1 for a GT30 or 32 as its got less hp potential looking at the maps.
I think your right the Garrett hotside is a better option for sure from what I have read its far better than the KKK copies, I guess I could add that to the existing 60-1 as an option over a #10, still have to put a new turbine/shaft in.
I thought the compression had to drop to at least 8.0:1 to be able to run my planned 17 - 23psi safely, I was taking the conservative option with the 8.0:1, although I can have my pistons in any compression I like as they are being made to suit.
What do you think is a street compression ratio, that I can still push up to 600hp safely, bearing in mind that a full compression point only add a few % power.
I think your right the Garrett hotside is a better option for sure from what I have read its far better than the KKK copies, I guess I could add that to the existing 60-1 as an option over a #10, still have to put a new turbine/shaft in.
I thought the compression had to drop to at least 8.0:1 to be able to run my planned 17 - 23psi safely, I was taking the conservative option with the 8.0:1, although I can have my pistons in any compression I like as they are being made to suit.
What do you think is a street compression ratio, that I can still push up to 600hp safely, bearing in mind that a full compression point only add a few % power.
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#9
Rennlist Member
What about turning and stopping those 600chickens Mike? Stock stuff is ok up to a point, but with that sort of power you will be like a big old power boat on full throttle with it's nose in the air let alone the handling and stopping stuff.
#10
Racer
Thread Starter
Yep, brakes and suspension also being done Patrick, cant have a big ol boat truckin down the street, tho certainly not up to the same standard as your stuff.
#11
Rennlist Member
Well there may be a few bits and pieces coming off my car this year that you could use???