Turbo Question...

BlackStroker

BlackStroker

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Mar 28, 2007
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552
How would would a GT42 with a 80mm turbine wheel, 1.53 ex. hs, 76mm comp. wheel, and a 2.8" inlet work?

Manual trans, pulling only truck...
 
sounds like a typical 2.8 charger. Wont be a whole lot of fun as a DD, but will be a good pulling charger.
 
BlackStroker said:
How would would a GT42 with a 80mm turbine wheel, 1.53 ex. hs, 76mm comp. wheel, and a 2.8" inlet work?

Manual trans, pulling only truck...
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Sounds like an awfully big turbine housing. You able to spin 5000+?
I think there are better chargers out than that.
 
spins 5000 now, I would like to get about 5500 out of the automotive gov. I haven't had any luck talking with anyone about how to go about this. I would like to lighten up the flyweights but I really don't want to go screwing around with something that works.
 
I still think that is an awfully large turbine housing.
 
1.53 a/r? Thats pretty damn big, most people run around a .9-1 I would think
 
I have seen some 1.32 work well if you have the rpm and the larger turbine wheel it works pretty good.
 
I've got a 12.7 detroit charger on it now that is 1.32...last year was an auto, this year will be a manual...got a deal on this new charger. How does the turbine wheel size relate to the spool up or staying on top of the charger? I know the housing is big but how is the turbine wheel size?
 
Larger turbine wheel will spool slower. I would run the 1.32

You able to get it lit at the line with the 1.32 housing?
 
no, it was pretty bad, I was running a ford trans with a ford convertor with a 2600 or so sthal, needed a 3000 sthal, but once it did light...that thing would run like a scalded dog. I have a couple videos on youtube but they are pretty pathetic, thats why i'm going to the nv4500...
 
I run an auto and I struggle to get mine lit, and I run a smaller turbine wheel and housing.
 
that 76 twheel is dang small. With 5000 rpms I would look to a 87mm wheel. The dang off the shelf 400 thats 80/88 with a 1.32 housing works really well for that setup and spools pretty easy.
 
bdp said:
that 76 twheel is dang small. With 5000 rpms I would look to a 87mm wheel. The dang off the shelf 400 thats 80/88 with a 1.32 housing works really well for that setup and spools pretty easy.
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I think his compressor wheel is the 76. I haven't seen an 80/88 with the 1.32, most of the ones I had seen were 96 inducer wheels.
 
ok, I ditched the gt42...what about this detroit charger I have now...can it be made to flow more air...bigger/different comp wheel? Its a 171701 borg, I know they make a 171702 and it has a 2.95 inducer, is that better? Bush that down to a 2.8?
 
2Tone12V said:
Ya but your truck sucks Dan!LOL You gonna hit some NADM events this year Dan?
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I don't think it is my truck, probably just me!

We will see how the $$$ go. I would like to.

Waiting on the NADM pull in central or SW MO!
Lucas stadium in wheatland!
 
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