turbodart68
Well-Known Member
Thank you! Hopefully we will get it out to grand this summer. They are still doing that aren’t they?
68 twin turbo dart project.
- Thread starter turbodart68
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Burntorange70
Well-Known Member
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.
turbodart68
Well-Known Member
Here is the link to my race progress over on the forced induction section, I thought I would link them together.
68 Twin Turbo Dart
68 Twin Turbo Dart
turbodart68
Well-Known Member
It’s been a while.
turbodart68
Well-Known Member
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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moparmat2000
Well-Known Member
149 in the quarter is fast in my eyes.
4mopwr
Well-Known Member
Awesome job on your Dart! Stance is perfect!
abdywgn
dismantler
GREAT! thanks for the Sherlock Holmes investigation, inspiration for the rest of us.
Walker434
Well-Known Member
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!
turbodart68
Well-Known Member
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.
Hemirunner
Well-Known Member
And it was fun watching that thing on Dragweek. Very fast car!!
turbodart68
Well-Known Member
Thank you very much!It was good to finally meet you and your awesome Roadrunner.
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