madninjaskillz
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great to see it come together. looking forward to more vids.
Pics of my Rear Mount Twin Turbo Build on my Viper
- Thread starter GTS-R 001
- Start date
georgethedog
Enthusiast
Steve, that is incredible. Can't wait to see a vid of it driving... Twin-turbo Viper--the Vettes are going to need solid rocket boosters.
GTS-R 001
Enthusiast
Tuning for driving under vacuum and 0 boost completed, car runs great even with no boost, stock engine pushing the turbos but not in boost, car made 463 RWHP on a mustang dyno with our Turbo exhaust. here is a quick vid of the car on the dyno and the sound the turbos make while just driving around with NO BOOST
click on pic to play video
click on pic to play video
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cfiiman
Viper Owner
That is so awesome, that sound is just so sick 
GTS-R 001
Enthusiast
That is so awesome, that sound is just so sick
Wait till you hear the boosted runs with the decel pops and the blow offs popping, sounds incredible!
GTS-R 001
Enthusiast
Steve, you gotta tell me that you weren't at least a little tempted to just slam that throttle to the floor and see what she could do! lol But I understand development and tuning... safety first
Slammed her a few times on the highway, 40 mph to 100+ mph roll-ons in third gear, man things move fast with turbos!
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Yes you do.... lol One of these should come with every order!
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Maybe I seen something I shouldnt have but that system sounds awesome on a pull!!
I might of seen it also, sounds great
Jerome Sparich
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Steve, one thing you should do is get those BOV's away from the throttlebody. They are way too close.
I guess this is an oversight by the designer.......<------- not a dig.
I guess this is an oversight by the designer.......<------- not a dig.
Numbers????
GTS-R 001
Enthusiast
Things are looking really good MAtt, we are just tuning and testing right now, should have some dyno sheets to post some time next week
Slithr
Enthusiast
Numbers $$$$$$
GTS-R 001
Enthusiast
HEy Jerome,
Thanks for the input, we actually designed and installed a new plenum over the last few days and one of the things we did was to move the blow offs a little further downstream,
Great can't wait to see them..... I think this will be a popular system.
MoreBeer
Viper Owner
I wonder if it can be sold as Geothermal-powered!
Simms
Enthusiast
Latest revisions look better IMO.
vpower01
Viper Owner
HEy Jerome,
Thanks for the input, we actually designed and installed a new plenum over the last few days and one of the things we did was to move the blow offs a little further downstream,
I like the look of that...much better! How much boost do you think you will run?
Black Moon
Enthusiast
Looks great Steve!
HEy Jerome,
Thanks for the input, we actually designed and installed a new plenum over the last few days and one of the things we did was to move the blow offs a little further downstream,
Paolo Castellano
Enthusiast
Jerome, not sure why you would say the BOV's were too close to the throttle body....
The closer to the throttle body, the shorter the vacuum lines are from the intake vacuum reference point.
The shorter the vacuum lines, the faster the BOV's will open....
There are a couple of very good design principles underlying this idea:
1. Faster expulsion of the forced induction will minimize the load on the throttle body plates minimizing the chance for any damage/problems with the throttle body.
2. The faster the expulsion of the forced induction will also minimize the surging in the compressor cover.
What this means is that when the BOV's open relatively more slowly, there is more load on the throttle body butterflies and with the throttle body shut, the air is forced to go back out the turbo air inlet rapidly decelerating the turbo shaft that is spinning from between 40,000 and 100,000 RPM. Such a sharp deceleration from this speed to a dead stop will certainly damage the shaft of the turbocharger. This is an over exaggeration, of course for what will happen to a system without any BOV and no anti-surge compressor cover, but I am sure everybody here gets the idea...
As far as the first piece was concerned, I made that ahead of time and put the BOV's on the reducing cone and left the front open for the pipes since I had never seen the SRT in person op top and underneath to know exactly what was the best way to route the pipes.....
This is all a moot point anyway as we remade that piece for a more practical and simpler way to reproduce the system for resale....
If you have any other suggestions on how the system should be made, please feel free to call me @ 832-267-7865.....
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