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Completely stock at the moment...I wanted to establish a street baseline first, then myself and others can have a reference point. There's plenty of breathing capability with the stock heads and cam....we'll know soon
I'm not looking to spend any extra on my new 427 other than to get it on pump tune and begin abusing it. But because I don't absolutely love the car I can totally see cutting up the cowl hood for a setup like this. I know the cam can make use of it.
The only additional item needed is to convert the fly-by-wire throttle system as we don't don't have cables or rods like the earlier cars. Other than that getting the correct injectors is a requirement and so is the fuel pressure. I will also be having a clear plexiglass bubble made with a large whole in the back (high pressure) as the when driving piece. I also added small filters like micro-K&M which fit down into each trumpet.
I have a friend who is interested in going ITB with his LS build. Can you ask / share any problems or particulars the shop has with the install and tune?
The shop doing the work is up in Colorado Springs about 50 miles from me, but I plan on going up there this week,just added these photos and if the wx holds will bring her home
Just
Last edited by PapaFred; Apr 14, 2025 at 10:09 AM.
Reason: additional photos
Just got her home, and had 8" of snow and then the following week 28 hours of rain...Don't ya just love life in the Rockies??!!Well we love it so much we will be relocating to Sun Citry AZ next month. Back to the Car. It runs really well with a great throttle response that is much faster then stock ,smooth acceleration with no tipping or off/on weirdness thanks to HALTECH and the masterful work done by TGA Performance in Colorado Springs> They really took on a project that they had never done before, and succeeded very very well. There is only one warning light, the traction control is staying lit and a reduced engine power alarm stays quiet with the reset button. Those I can live with until I find a competent shop if Phoenix. More photos coming in between packing up boxes. Anyone need a free C4 307 diff complete with the batwings.? https://www.tgaperformanceco.com/
Last edited by PapaFred; May 13, 2025 at 08:40 PM.
Reason: adding installation shop link
When choosing a fuel pump for daily drivers and driving over an hour or two, fuel heating and minimum fuel pump voltage are the two main concerns.
I addressed everything in this thread once, so I never have to type it all out again, its quite a lot and I even went into injection strategy and fuel comparison behaviors. https://www.corvetteforum.com/forums...post1608664080
-know the flow rate of the selected fuel pump at low voltages for when the car is hot and alternator is failed
-control fuel heating, generally by using an appropriate low output pump condition with PWM strategy if necessary
We haven't had the fuel issue yet, but the car has only been driven from the shop to home, and not tracked. The situation that you point out is valid, and needs to be monitored in the future.
