QA1 coilovers with 450lb springs. I thought I would have to get bigger springs but I only adjusted the sprigs 3/8 of an inch higher and it not only made up the diff but raised the car 1.5 inches. Part of it I think is that everything is moved back 4 inches including the trans. That moved the weight back and did not put the extra 400lb directly over the front in the same place as the 455. And yes 750ftlbs is easy on a cummins. Right now all I have is a fuel pin and upgraded turbo. I am going to "limit" the power to 750ftlbs maybe 800 to save the tranny. I am afraid that I will shred it with more than that. The car is way fun to drive, right now it feels like a very well built 455. Not quite as fast as the turboed 455 I had in it, but I have lots more power just the turn of a fuel screw away. Speaking of my turbo 455, I may sell it. Let me know if any one is interested in it. All best stuff, CP blower pistons, H beam chevy rods, girdle, Weaver external drive oil pump, T76 turbo, and much more. Thanks Brent
I blew up three 10 bolts with my 455, I don't see how it's going to stay together with the weight and torque of that diesel.
Cars pretty much done. Just driving it stock for now. I am going to experiment with a different exhaust housing and then start turning up the fuel. You lost me on the seeing me this weekend line? Do you by chance have a 12cm wastegated exhaust housing for a wh1c or hx35? Thanks Brent
Sorry, completely wrong guy!! There is a local guy swapping a cutlass.. This last weekend was the second time I met him.. In that bit of a hurry, I mistook this thread as his.. Enjoy that beast when you get it rolling right. Lots of fun.
An update on the project. After hitting 650ftlbs of torque with minor tuning I started to stress about the Richmond 6 speed trans. Why is it car guys are never happy with their current power levels. Injectors and I can probably hit 750-800ftlbs, compound turbos close to 900 and if I add CNG as a power adder ? 1000? Any way I am building a 47RH automatic and converting the car. I really dig driving sticks but that Richmond would be a very expensive pile of scrap. I will take pics and update the post as things come along. Thanks Brent
CNG is a dangerous power adder.. Fuel from injectors, and nitrous.. Safest way to use injectable. That or water meth. Nitrous works better if over fueled. Methanol v works better under fueled. CNG and propane have option to blow up if ignited by grid heaters or the like. An upgraded drop in turbo, injectors and pump tuning. Makes for fun HP.
I hear what you are saying about power adders. The reason for CNG is 2 fold, I had the gas engine running on CNG so I have a tank, lines and regulator already in the car. Second is that CNG is readily available and cheap in Utah at many filling stations, it has become quite popular to run it on diesel trucks here. I have personally dynoed several trucks and you can easily get a 100ftlbs with it. You are right though it gets hot real quick, 1400 degrees in a 8 second dyno pull so you have to watch things real close. I probably only have a little bit left with the stock injectors so that will be the next upgrade then I have been contemplating a set of compounds. I have the t76 turbo off my gas engine that would work real well for the low pressure job. Thanks Brent
I like where this is going!! That ve injection pump will be your next lack of fuel problem. Probably 400hp is roughly where you will end up on fuel, more with injectable. And you can run 1600 to 1800 egts for short trips. Won't hurt the turbos at all. Keep up the good work!
No real updates, still trying to get the auto trans to work just how i want. I really need injectors so I can go to the next power level but i am spending money on other stuff the car is faster with the auto but not as fun to drive. Still making vb adjustments to get the shift timing perfect. After putting some miles on the car it is alot more tricky to drive. When you have 500ftlbs of torque at 1,700 rpm with quick spool up the car likes to go side ways if you get on it taking a corner. One of my students put this on You Tube, you might like it. https://www.youtube.com/watch?v=0hnZBoVueCo Thanks Brent
Have you found a builder for injectors you want? I have a recommendation that you can't go wrong with. Attention to detail is impeccable, smoke control and power is awesome.. Holler at me, will give you his number
