bigturboz28

What is the smallest A/R would you recommend on a single front mount T76 for a forged 346?

smokinHawk

iTrader: (48)

.96 is good
though some have done an .81

longrange4u

iTrader: (2)

Spool time vs: Top end power

chuntington101

would a .81 be better for a stock cubed LS1 with a sts??

Chris.

longrange4u

iTrader: (2)

Uhhhh.... a 76 on an STS? Stock cubes? There is alot more that you would have to do to make a 76 spool on a stock motor rearmount. I wouldnt reccomend it.

Jake@EPP

A 76mm on a 346 will spool, but you talking a high rpm spool depending on exaust AR and also depending on cam and head combo. Idealy you want to limit it to a 67mm for a quick spool with great midrange power.

As longrange4u said, its just a matter of spool time VS top end power,
Front mounted or rear mounted.

chuntington101

so a 346 has trooble spool but zombies 370 chokes on the turbo? i dont get it. thoguht the samller cubes would reduce choke????

Chris.

longrange4u

iTrader: (2)

Zombie's car wasnt choaking on a 76... he was choaking on the .81 AR.... his 370 wasnt enough to spool that 408 the way he had it setup. There are also loooooots of contributing factors when you remote mount. Front mounting has less factors to deal with when it comes to turbo spool. You also have to look at what kind of racing the Zombie does... and what he uses his car for (daily driving). You have to take that all into account. But yea... IMHO a 346 is too small for a 76GTS in the back unless you take into account all the "spool factors" and you address all of them throughly.

chuntington101

so why not just swap out the .81 for the .96???

can you not get a 1.01ar like you can with the GT42s???

Chris.

longrange4u

iTrader: (2)

That was what Jeremy (Zombie) ended up doing.... went the the .96. Hell the 76GTS is rated at 1000HP I believe. You can also upgrade the 76GTS exhaust wheel and bump that rating to 1100HP.

I have had to address lots of issues with my setup. I am hoping that the 88mm wont be too bad out back.