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1978 Oldsmobile Cutlass Supreme LQ4 + 4L80E swap

Old 06-28-2015, 11:24 PM
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Too busy to take pictures, but I will gather some up after I recover. Just got home. 600.8 miles driven, three tracks, three days, at least three runs per track. Today's best was 11.67 @ 119.6mph. Still only a 1.8 60'.
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Old 06-29-2015, 02:53 AM
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Old 06-29-2015, 03:04 AM
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I'm 5012. Left lane was the twin-turbo Mustang that won the event. He only ran half track...

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Old 06-30-2015, 06:22 PM
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Old 06-30-2015, 06:37 PM
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Oh, and can it baby? Yes, yes it can.
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Old 07-01-2015, 06:15 PM
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Originally Posted by 1970camaroRS View Post
I'm 5012. Left lane was the twin-turbo Mustang that won the event. He only ran half track...

I would be happy with 11.6. What does your car weigh with you in it?
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Old 07-01-2015, 09:46 PM
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Originally Posted by L92 OLDS View Post
I would be happy with 11.6. What does your car weigh with you in it?
One of my goals was to get it on a scale at one of the tracks last weekend, and that didn't happen. Not a clue, but it's less than stock. Aluminum headed engine, fiberglass front and rear bumpers, no heat or ac, aluminum wheels, no front sway bar. And don't get me wrong, I'm happy as a clam, but I can and will do better.
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Old 07-01-2015, 09:47 PM
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I think the car hooks ok.

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Old 07-01-2015, 11:05 PM
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Old 07-05-2015, 11:19 PM
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Reposting an image that got taken down.
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Old 08-11-2015, 11:31 PM
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Nitrous going in. Just needs the nitrous feed line and wiring.



And a bonus shot:

Last edited by 1970camaroRS; 08-11-2015 at 11:38 PM.
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Old 08-11-2015, 11:37 PM
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And a new startup, idle, rev video.
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Old 08-17-2015, 12:05 AM
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I participated in the Northwest Nights Motorsports track event at Bremerton Motorsports Park this weekend. Pulled into the pits late Friday night and set up camp. It was cold. Here's some views of the morning.




And my camp.


Ran close to my best on Saturday, but only got two runs in. I was concentrating on getting my nitrous system wired and functional and logging the runs to verify the tune.

Sunday morning:


It was slippery!


Pedal, pedal, pedal....

The important part- it all came together in the end and I ran a 10.98 on a 100 shot.


And a snapshot of the log of that run.

Last edited by 1970camaroRS; 08-20-2015 at 11:15 PM.
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Old 08-24-2015, 07:41 AM
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Pretty sweet build…love the low buck look…but there are a few pennies under the hood!
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Old 08-24-2015, 12:33 PM
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Originally Posted by KitsBeach View Post
Pretty sweet build…love the low buck look…but there are a few pennies under the hood!
Limited budgets dictate that the money get spent in the right places. Still under $10,000 over-all...barely.
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Old 10-24-2015, 11:56 PM
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Car got on a Mustang dyno today. It makes 408, corrected at the tire N/A and 520 corrected, at the tire on nitrous and a safe tune.

N/A


Nitrous
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Old 10-25-2015, 08:24 AM
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Love your build. Very impressed. Giving me something to shoot for. Mine will be less streetable than yours but there are a lot of similarities.
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Old 10-25-2015, 12:08 PM
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Thanks! There's a couple of things I wish I had different, like 1-7/8 headers and a billet 3,800-4,000ish triple clutch converter, but I just don't have the budget. And the smaller cam and tighter converter are compromises that make it streetable, but leave a bunch of power and ET on the table. I also went with the cheapest head solution out there with the PRC 5.3L, and they made a bunch of power, but hold back even more than if I'd have used a more expensive head. In the end, especially with the nitrous, the car is quick enough to need a cage now.
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Old 10-26-2015, 07:31 AM
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I know what you mean. I have a bunch of comprimises too. I got the biggest cam I could get without flycutting. Would like to have an aluminum block to drop more weight and some higher compression. I'm gonna do the 1 7/8" headers off the bat, along with a pretty radical converter. Maybe once I get my setup dialed in, I will have my truck and student loans paid off, and can go forged internals, fuel injection, e85, and turbo.
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Old 10-27-2015, 12:10 AM
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Nice build! Read the whole build and its cool to see the progress!
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