68 twin turbo dart project.

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turbodart68 said:
Thank you! Hopefully we will get it out to grand this summer. They are still doing that aren’t they?
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I don’t know. Would think so but not sure. Not been in a long long time. I need to get out to the barn and work on my Dart. Wiring is in bad shape and needs completely gone through. Just need to find the time.
 
It’s been a while.

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So it’s been about a year and I have been busy chasing a fuel injection issue. I went to a well known Holley guru and it performed well on his dyno. 730hp at 10psi of boost yet when I went to the track it still shut off mid track. Absolutely frustrated I went back to the drawing board and looked at every inch of wiring. This was after doing extensive pump testing of the fuel pump. I ended up re-plumbing parts of the fuel system. I found a bunch of little wiring things to fix and I added 7 inputs to the Holley EFI and connected the trans brake through the ECU so I can use the bump feature of the Holley EFI. This fuel injection really does it all. I ended up not liking the ground side of things so I ran 2/0 welding cable from the battery to a post in the trunk then on to the block, heads and the intake. This ended up being the problem! So I ended up going to Bakersfield By myself because I was sick of my buddies and family coming to the track and watching me flail. So I went by myself. I ended up having the best day ever at the track and it confirmed that I can run this program by myself in a pinch. I made 3 runs. Now it wasn’t as fast as I had hoped. But it ran flawlessly and for that I am thankful. It ran a best of 9.17 at 149. Which is slow but I got some great data out of it. One of which is that the 3.70 gear with 33” tall tires coupled to a 3300 pound car and 730 whp made for a slow run. I almost made it to the stripe in second gear! So I just finished installing a set of 4.57s in it. I am heading out to the track in 2 weeks to see how it runs. I plan on staying at 10 psi for now but 15 is up soon.
 
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Way to stick with it. Sure is easier to see what is going on without several extra sets of eyeballs. Congrats on the progress.
 
Glad you got the problem sorted out! Can't wait to see what it runs on 10lbs with the new gears. Then on 15!!! Look out!
 
Its been another long time since I had updated this thread. After my trip to Bakersfield I changed the rear gear and went to Irwindale for some 1/8th mile testing. The change in gear really spiced it up yet it didn't run any faster to the 1/8th, go figure. After Irwindale I went home and did some maintenance to the motor. Found a little bit of brass in the filter so I took it apart. What I found was the thrust bearing was worn out (AGAIN!). So I had bought a Ritter block a few months before and decided to build the motor I should have built all along. Its a 436" with the same W5 top end and a new but very similar 60 mm roller cam. This block is really trick and it has a lot going for it but it also is very different in how its built so building one made for a lot of running changes at the last minute. So in 8 weeks time I built a new motor and had it together just at the last minute to leave for Dragweek in Martin Michigan which is 2200 miles away from me. I put the 3.70 gear back in it and I dabbed up an aluminum trailer real quick for the Dart to pull.
 
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