Went to a Skyline Dyno Day, Awesome

[SkylineUSA]

Those guys are so cool. There cars were shit hot as well. I even got to ride in one for a white knuckler. Very fast, very impressed.

I put my car on the dyno as well, I have issues. But we wont go there

Anyways, the GTRs were in force. The baddest of the ones that were there was an R34 and it had let a sparkplug electrode go while he was driving it to the test facility, needless to say he did not run, but there were 5 other R34s, and a bunch of R33s, and a few R32s. A very fun day. If you get a chance I highly recommend it

The hightest of the ones that I saw was a 416 or so, which is damn good. I did not get to see all, since I was drooling too much over the other cars that were there.

[Grendel]

Sounds like fun... so what kinda numbers did you Mustang put out?

-Grendel

[SkylineUSA]

another

[SkylineUSA]

Another

[SkylineUSA]

Here is the R34 that was having prolems.

[SkylineUSA]

Here is my dyno sheet. The car was cutting out at 4800-4900. It was nice and steady and then bam, it would not go above 4900. So 250bhp at 4850. The car needs a tune, BAD. Among other things.

[SkylineUSA]

Another

[R34 GTR]

The pics with the blue R34 was me. I did the first run as I had to leave early.

What bhp did you get at the wheels?

I got 395bhp at wheel = approx. 540bhp engine.

[SkylineUSA]

R34,

I posted above, but since my sheet did not post here you go.

By the way, your car ROCKS.

[R33]

Looks like a great day at the dyno there...and nice cars too...including the blue one!
Sky, I was looking at your chart there...what are the lines at the bottom? Are those your AFR? If so, it looks like your car is running lean....from what I know of these things. Then agin, I could be wrong...

[SkylineUSA]

Actually R33,

I think that might be one of my issues. I run two fuel pumps, one interal, and the other external. The one in the tank might have craped out, so I will be needing to upgrade. That is only one issue, but your thinking is the same as mine on that one.

Thanks for your input.

[KevlarMKIV]

I'll never get used to the idea that there are nore Skylines there than Mustangs (being from the states and all )

[Gonthrax]

Originally posted by R33
Looks like a great day at the dyno there...and nice cars too...including the blue one!
Sky, I was looking at your chart there...what are the lines at the bottom? Are those your AFR? If so, it looks like your car is running lean....from what I know of these things. Then agin, I could be wrong...

Perhaps a fuel pressure regulator... You got a dual stage Sky?

[SkylineUSA]

Ok, Gonzo I'll bite. Dual stage

[Gonthrax]

Originally posted by SkylineUSA
Ok, Gonzo I'll bite. Dual stage

Do you have an A/F gauge? A friend of mine has an 454 with two pumps, one stock and one Sard. His fuel pressure regulator wasn't up to the challenge and when he hit ~3500rpm the stock pump couldn't keep up and the dual stage had problems keeping the fuel pressure up by making the Sard work hard. It wanted to work both pumps at the same pressure. Just a thought, might be way off.

*Edit*

Woops, I just now saw the

A dual stage fuel pressure regulator (I think) is specificaly made for running two fuel pumps. They are usualy also adjustable so you can make sure it pumps atleast Xpsi at Xrpm. I usually hear them associated with big ass blown hemis and such. And I've never see or touched one, so if I'm hunting bear with a slingshot here let me know.

Please ignore my strange analogy, I don't know what posessed me to say it