Competition Flange Size

[SFrey]

anyone know what flange is on a HT4C ?



scot

 

[HoleshotHolset]

Turbine inlet or outlet?

It's probably a "large frame" turbine inlet and a marmon flange outlet.



Beers,



Matt

 

[SFrey]

exhaust inlet



scot

 

[GO 4LO]

I've got the 26 housing, and it's a T6 inlet.



Chris

 

[RyanB]

I've got the 26 housing, and it's a T6 inlet.



Chris

Anyone know if there are any other housings than just the 26?



RyanB

 

[GO 4LO]

I believe there are also 29, 32, and (I think) 36 housings available. I know a guy who might have some lying around that he machines to use on the larger Holsets, if you need one - just shoot me a pm.



Chris

 

[HoleshotHolset]

I have a brandy new HT3B with a 36cm² turbine housing. That's a 'twee too big for my truck...



Does "T6" = "large frame" ? I think it does...



Matt

 

[MCummings]

HT3B and HT4C use the same flanges.



I upgraded from a 40/3B twin setup to a '55/4C setup with minimal issues. Just had make more clearance to the exhaust manifold.





Merrick

 

[RyanB]

HT3B and HT4C use the same flanges.



I upgraded from a 40/3B twin setup to a '55/4C setup with minimal issues. Just had make more clearance to the exhaust manifold.





Merrick

Sounds like quite the setup! What kind of boost are you seeing with it? With my current setup HTT66/4C I was sure I saw the needle almost pegged last weekend pulling and it goes up to 100!!!!

 

[MCummings]

I only had a 100 psi gauge, but I calculated that if the overall pressure raised at the same rate as the intermediate pressure, I would have been making 136psi, but I do not know for sure. The 100 psi boost gauge was pegged out at 3/4 throttle, and the intermediate pressure was pegged at 50PSI.



I did not have enough fuel pressure for my P-pump at the time, and burned it up real quick. I am freshening up the motor, installing a new p-pump and will have it for sale soon.



The setup was pretty laggy, atleast with my auto, and I was not running an intercooler. 14mm studs, with a balanced and girdled bottom end.





Merrick