A moderately built L28 with well tuned ZTherapy SU's,

Had this done last week on a Dyno Dynamics machine, torque appears to be 190-192 ftlbs

I'm pretty happy with those numbers, but now I have installed a set of SK/OER triples and once I have those tweaked to best performance I'm heading back to the same dyno to answer for myself which carbs are better for me. I don't want to reignite that debate again but I thought some might be interested in the results so I'l post them as soon as I get them.

I am really loving the triples, great sound and the car feels stronger but I could just be fooling myself.

Chris

A larger venturi and increased porting could help achieve that 200+hp.

Hope you can dyno your car soon! I wonder how much power increase comes from Triples (sk) and header alone...thats all i have..(not installed yet)

Just my $.02, a "mild" cam isn't going to give the best results with triples. I went with a .490/280 cam and wished I had gone bigger. When I put the triples on my Z, my wife was afraid to drive it because it had so much more power. I would guess ~40 whp by the butt dyno. It was SIGNIFICANT. I believe Dan Baldwin documented 50 whp on his motor here some years back.

Those are better than reasonable numbers- those are excellent numbers. I have read too many threads where folks have gone the stroker route and didn't do this good. Looking like 200+ HP at the rear wheels with triples is very possible . That is an accomplishment to be proud of- congrats.

Where were you at with the timing and what ignition ?

Steve, the stock L24 single points distributor with a Pertronixs ignition module that I'm using was set at 10* static for the dyno, but I was just catching up on posts and found this, http://www.classiczcars.com/forums/electrical-s30/34192-280zx-distributor-advance-curve-reference.html have a look at post #19, Walter Moore's research might mean I have the wrong static timing. I'll have to check the stamped code on the side of my dizzy.

It is a good dyno result and the best part is it was done on a Dyno Dynamics roller, they are known as the "heartbreaker" because they always display lower or as the guy who bought the dyno says, "real" numbers.

Hope you can dyno your car soon! I wonder how much power increase comes from Triples (sk) and header alone...thats all i have..(not installed yet)

Sooner the better for me as our weather is starting to cool a bit. Just waiting for this SK float level sight tool from japan, just want to make sure everything is properly setup before I take it for tuning and then the dyno.

Just my $.02, a "mild" cam isn't going to give the best results with triples. I went with a .490/280 cam and wished I had gone bigger. When I put the triples on my Z, my wife was afraid to drive it because it had so much more power. I would guess ~40 whp by the butt dyno. It was SIGNIFICANT. I believe Dan Baldwin documented 50 whp on his motor here some years back.

Jim, the engine came with the mild cam and I wouldn't want to change it out until I have the carbs running perfectly

and then only if I find the cam to be the limiting factor. But I have to say I love that flat torque curve, everything it has to offer is available at low rpm right up to red line. This is a weekend street/highway car.

Chris

I'm not understanding the colors on the chart, very neat by the way Mr Moore. I've got a D6K8-22, vacuum advance 30 and 57 total advance. It's in the RED section. Is that bad? Should I get one that's in the YELLOW? I'm installing it in a '77 2.8 FI with N42 Head. Thanks for thread, I thought all E12-80's were the same.

OK I just saw that the RED was higher and maybe harmful to my motors health.

Edited September 15, 201311 yr by siteunseen

I have never taken my car to a dyno, so I don't know what HP it has. For reference on the spark knock, I have modified the S120 distributor on my car to restrict the vacuum advance to 17 degrees. The setup is 10 static, 17 centrifugal, and 17 vacuum. This takes me to 44 degrees total advance at around 3k rpm when the vacuum advance is engaged. (Generally only in 5th on the interstate at light throttle.) I have to run 93 octane gas or else I get spark knock.

You can confirm your total advance with a "dial-back" timing light. I bought one at NAPA and it is a really great tool. Using one you can discover all kinds of things about the timing curve of your distributor.

Thank you, I learn something new everyday on classiczcars.com.