waistegate q's
waistegate q's this is my first v8 build. I've been turboing 4cyl's for a few years, and am finally stepping up to a muscle car. I'll probably end up using an ls1 (of some form) in it. the plan is for a single t4 (sizes undetermined yet), with hp goals of between 450-550...depends on what i do on the build. Now I've been getting a few different answers tot his question, so i thought i'd come here. I have an assortment of parts left over from the 4cyl builds....1 of them being a tial 38mm gate. Is that large enough for a 383-406? I know i havent provided enough info to get a forsure, but do u guys normally run a 46mm or larger? I personally think its to small, but others have said it should be ok. Just trying to get a clearer picture.
Russ W.
Russ W.
Staging Lane
Joined: Jan 2003
Posts: 93
Likes: 0
From: South of Boston, Ma
Originally Posted by turbo-max
that should be okay for LOW boost and power, but i think you will have boost creep if you try for the HP levels your looking for...just my .02
Originally Posted by JRL96TA
Actually that's backwards. It should work better for higher boost levels, where it doesn't have to bypass alot of exhaust. Jose from Forced Inductions is running a turbosmart 38mm on his camaro with a T88, and it holds low boost just fine. Of course that's a higher quality wastegate also.
I've had nothing but success with tial. good to know the 38's can flow enough though.
On The Tree
Joined: Jun 2005
Posts: 123
Likes: 0
From: Tampa, FloriDUH
Originally Posted by JRL96TA
Actually that's backwards. It should work better for higher boost levels, where it doesn't have to bypass alot of exhaust. Jose from Forced Inductions is running a turbosmart 38mm on his camaro with a T88, and it holds low boost just fine. Of course that's a higher quality wastegate also.
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I just spoke with someone the other day at Pro Turbo Kits and he recomended the turbo smart over the Tial.He said it has a better flowing valve and it wont have boost creep problems like the Tial would.
That's right.
Originally Posted by JRL96TA
Actually that's backwards. It should work better for higher boost levels, where it doesn't have to bypass alot of exhaust. Jose from Forced Inductions is running a turbosmart 38mm on his camaro with a T88, and it holds low boost just fine. Of course that's a higher quality wastegate also.
Originally Posted by SuperZ
I just spoke with someone the other day at Pro Turbo Kits and he recomended the turbo smart over the Tial.He said it has a better flowing valve and it wont have boost creep problems like the Tial would.
Yes I'm the one that did the testing with the Tial and Turbosmart 38's.
JZ