Competition S400 for twins?

[AWard]

Ive got an HTT64/13... . would an S400 be a good match for twins? Ive found an S400 that says it has a 1. 32 A/R exhaust 75mm Extended tip wheel cam flow 98 lbs/min? That any good? Thanks for any help or comments!

 

[SRadke]

I had an S400 under my 64/14 when I put my set together. It worked well until I started towing at high altitude. The 64/14 was a hair too big and it would start to flutter around 40 psi boost. I had it downsized to a 62/14 and it works much better and spools quicker.

-Scott

 

[AWard]

Anybody else got any thoughts?

 

[TJarecke]

S480 I think would work better under the 64mm. I would agree that a 62 over the S475 would be a better match.

 

[AWard]

What would an s475 come off of? and whats the dimesions on that?

 

[TJarecke]

HERE is the cheapest one I have found.

Borg warner has made the S400 series turbos multi use by offering many different wheel combinations. I am not sure if the S475 specifically is used on some thing. It is available for us in the aftermarket for a reasonable price.

 

[AWard]

Hey man, yeah thats the same one i found. It seems like a very good deal. Just needin to know if it will work well for me... thanks!

 

[DCreed]

should work fine with the 64/13 but will need to port the wastegates for full flow on the top end. Will slow the spool of the 64 a bit 100-200rpm but will climb faster and further when they light.

 

[Josh1]

hey ward dont you think a dd clutch should be first before you put that
little 3 inch charger on

 

[AWard]

It dont hurt to think ahead... But now that you mention it get me a price on the clutch...