twin gts 70's are alive and well
07-16-2006, 10:07 PM
#1
twin gts 70's are alive and well in case you missed it here is the build up thread, figured it was geting prety long so i started a new one. >> http://www.performancetrucks.net/for...0&page=1&pp=40
here is a vid of the start up and some break in miles. http://www.1320video.com/videos.php
so far i am keeping it to 3-4psi, i need to finish up a few things before i really beat on it. probably have some performance data in a week or so
, i am real happy with how it is running. it just fires up and drives, nothing to it. smooth, a little loud. seems like it will be laggy but i haven't triad loading it up at all or going wot.
anyone know what that deep noise is when i let off the gas. i can hear the bov's they are a nice pshhh but there is another deep noise.
here is a vid of the start up and some break in miles. http://www.1320video.com/videos.php
so far i am keeping it to 3-4psi, i need to finish up a few things before i really beat on it. probably have some performance data in a week or so
, i am real happy with how it is running. it just fires up and drives, nothing to it. smooth, a little loud. seems like it will be laggy but i haven't triad loading it up at all or going wot. anyone know what that deep noise is when i let off the gas. i can hear the bov's they are a nice pshhh but there is another deep noise.
07-16-2006, 11:35 PM
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Originally Posted by parish8
anyone know what that deep noise is when i let off the gas. i can hear the bov's they are a nice pshhh but there is another deep noise.
I'm pretty sure that is the sound of a pressure spike in your intake track, and boost pressure going the WRONG way through the turbo (exiting the *inlet* of the turbo). When this would happen with my car, it almost sounded like a duck! If that is the case, your BOV(s) aren't set up correctly, and you need to adjust them to be more sensitive. Or maybe the BOV(s) are too small for the application?
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07-17-2006, 09:43 AM
#13
Originally Posted by Boostaholic
What did you have in mind
Parish- looking good man. I really like what you have done/are doing with your truck. Definitely a sweet ride. Good luck with it.
Andy
07-17-2006, 10:16 AM
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Originally Posted by RAACCR
Twin Turbo all-aluminum 632" BBC, stuffed into a 3500# AWD street "car" 
Congrats Parish! Your truck has been nothing short of insane since you've started the mods. You need to do another "tire flex" video on this setup lol.
I dont even wanna know what type of #s you're shooting for with this setup. 1000/1100 on the old setup would've been more then fine by me lol. Keep up the good work man
07-17-2006, 11:58 AM
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Originally Posted by Tiago
turbo ls1s are normal now... time to build something else that isn't 
Parish... Monster Truck as always!!! Good luck with that man! Keep us updated!!
07-17-2006, 12:32 PM
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Originally Posted by Ling_650vette
Why is it "car" is in quotations and I see the perfect truck candidate in the sig?
With the hydroboost brake conversion, there's plenty of valve cover/cylinder head clearance. I'm going to need to slide the steering shaft over a little. Working on the oil pan now...an off-the shelf Chevy II BBC conversion pan almost fits; just needs the front kick-out and one corner trimmed for the front dif. (Need to clearance it for the extra stroke as well.) Overall, this is not nearly as difficult a swap as you'd think.