Hey I found this turbo http://cgi.ebay.com/ebaymotors/ws/eB...sPageName=WDVW on ebay and was curious as to whether or not it would be good for a stock-mildly modded lt1 (lower compression small turbo cam and a tad of headwork in mildly modded stage). Now I understand the 1.32/1 A/R ratio is large but is the turbo small enough that it would spool fine on a 350 with those twin turbine inlets? Thats my other question how much more efficiently or quickly would a turbo with that kind of dual inlet turbine housing spool? He also says it would have a compressor map similar to a T66, is that true because the compressor map matches a mild LT1 pretty well...???

 

Anybody got an opinion?

 

Don't mess with that thing

 

THe twin turbine housing inlets would be kinda neat for a single setup. Eliminates the need for the crossover pipe, just plumb both headers into the turbo. Packaging it would take a little thought though.

 

yeah I know packaging would take some work but this would not be going onto an f-body, Im researching a motor swap into a smaller car with more room under the hood lol. But as far as the large A/R ratio goes how well will that work with a stock lt1 and would the dual inlets help with spooling any?

BTW I t was up before and he suggested it was a 62-1 with a larger compressor housing or something.

 

is it just me, or does that look like a pair of on-center inlets that have been done on a decent casting? They certainly arent tangential. If that's the case, I dont know if the twins will help any spool compared to a standard divided turbine housing. Only thing is that you will keep the exhaust pulses apart more, which will help spool a little... But I'd love to see some dimensions on the compressor side - I get the sinking sensation that you'd be trying to spin that thing out of efficiency to run low boost on an lt1. I dont know if that's true or not, but looking at the size of the turbine size to the size of the compressor - it's hard to tell... More info is always a good thing.

 

Yeah Im trying to get some trim numbers but I cant seem to get him to respond....grrrr he said it was a 62-1 compressor with a larger housing or something...

 

Here are the specs

Cold Side:

46 Trim Compressor Wheel -2.430 in. (62mm), Inducer, 3.580 in. (91mm) Major

0.70 A/R Compressor Housing

3.25 in. Inlet and 2.5 in. Outlet


Hot Side:

Big Shaft 76 Trim Turbine Wheel- 3.234 in. (82mm) Major, 2.814 in. (71.5mm) Exducer

1.34 A/R Turbine Housing w/3.3 inch outlet flange and dual 2.5 in. V-Band Inlets

Bearing Section

Oil Lubricated and Cooled

Garret Model TM5401 #466010-0005

CATERPILLAR # 7W2874

Sound good?

 

sounds crazy....wasnt that on a deisel engine?i was not aware you could use one on a normal car.hope it works out for you.

 

Meh still trying to decide if I should wait for a cheap 62-1, which matches a stock lt1 VERY well especially at 6-8 psi or if I should go ahead with this one, only thing that worries me is that the turbine side is large but Im not sure, if it would spool up 8 psi by 3k rpm then thats fine but Im afraid its larger than that, would like an opinion on that one to help me decide. Compressor side seems like a good size though, but judging by the specs above its def larger than a 62-1...