3900 finally comes to life

fallenz24 · Posted: Sun Feb 15, 2009 7:06 pm Post subject:

That's a very badass setup! I bet you can't wait to drive it!

How much of a pressure drop do you think you will have with the IC mounted up front? I think you are really headed in the right direction. Good luck with it! You are doing all the 660 Fiero guys proud!

-Joseph_Cooley

josephupson · Posted: Sun Feb 15, 2009 8:02 pm Post subject:

thesick · Posted: Sun Feb 15, 2009 10:15 pm Post subject:

My SR20DET sounds beefier--what's up with that?

Awesome project though.

scott0999 · Posted: Sun Feb 15, 2009 11:06 pm Post subject:

cant wait to see this thing in action

josephupson · Posted: Wed Feb 25, 2009 9:44 am Post subject:

Finally got to testdrive it and as expected it is much quicker off the line than before with the camshaft fully advanced. It doesn't chirp the tires as easily but that's partly because they are low on pressure making better traction and I'm not revving the engine as much as before on launch I don't believe.

At some point I need video outside of the car and also need to get on the interstate so that I can safely take it up to higher than city speeds, on the little strip of road I stick to mainly 1-2 shifts but even with that you can tell it has a strong top end as it never fell over as high rpm was reached. I may not need to retard the cam at all to get the most out of it.

There are so many little technical things to do that I keep running out of time and had no time to tune as there are many lean spots in the higher rpm range and for the first time I just realized that maybe the cam regrind to high rpm performance, coupled with the full advanced position and the lean areas up top suggests the best performance can be had with the cam fully advanced since it is already biased towards higher rpm performance.

The intercooler results are just down right impressive and should have given at least a 10% power increase with inlet air temps going from 212 deg F to 100 deg F at 7 psi. I'm pretty confident that given it took an extremely lean condition at 7 psi to get 1 deg of timing retard there is plenty of room to run 10 psi and possibly a little more without the aid of my water/meth kit.

I want to get it dyno tested as soon as I can.

Here is a link to the video which has a demonstration of the VVT operating in it. I may have to come back and redo the link once the video is processed since I'm admin and the link comes up differently for me.

http://user.streetfire.net/video/Latest-test-with-and_638353.htm

josephupson · Posted: Thu Feb 26, 2009 6:40 am Post subject:

Here is a shorter version of the video since the other has not finished processing yet.

http://user.streetfire.net/video/Upgrades-short-version_638461.htm

thissen_151 · Posted: Thu Feb 26, 2009 7:07 am Post subject:

that thing sounds amazing! pretty damn quick too

i love it

josephupson · Posted: Tue May 05, 2009 6:32 pm Post subject:

Still didn't get much if any tuning done although some extremely lean areas in the low rpm range were cleared up and probably pushed to the opposite extreme.
Advance Auto Parts shift cables need to be replaced with better quality cables, they are not rigid enough and can not take the heat, I left the car with a seized selector cable. You can note the delay between the 1-2 shift at the beginning of the video due to flimsy shift cables.

On a half tank of 87 octane the car ran very strong at what appeared to be as much as 8 psi, there is plenty of room for improvement at that boost level with higher octane fuel and installation of the alcohol injection kit. The two changes together should make 15 psi very easy and probably attainable with just one or the other. 12 psi should be more than enough given how strong it runs at 7psi.

Unfortunately the datalogs were saved to a corrupt file I discovered a little while ago so I have nothing to take snap shots of to show inlet temps and boost pressure.

I removed the mufflers as a precaution since the body supports have not been installed yet. Hopefully it will be finished by the end of the year.

http://videos.streetfire.net/video/Testing-with-without_680592.htm

barrok69 · Posted: Tue May 05, 2009 9:26 pm Post subject:

time to get the suspension upgraded ?? lol. That ass sag is as bad as a stock z24. lol

looks quick. even quicker with suspension work!

SuperDave · Posted: Tue May 05, 2009 10:34 pm Post subject:

Lol @ 3:40..

Nice vid, it's got a very healthy idle

fallenz24 · Posted: Tue May 12, 2009 4:39 pm Post subject:

The car seems to run and drive pretty well. I would have thought it would be fasted thought. Is the tune that far off? It just doesnt seem to have the launch that it should.

Also, how did you run the ic piping? I'm thinking of doing a fmic on my car too. I was just thinking of running 2in. pipe down the sides by the rockers. Is that what you did?

-Joseph_Cooley

josephupson · Posted: Wed May 13, 2009 11:43 am Post subject:

dukie · Posted: Sun May 17, 2009 5:17 pm Post subject:

Your BOV sounds like a dog getting beaten

Where is the PSSSHTTT?

phenolic · Posted: Tue May 19, 2009 1:30 am Post subject:

I like the last few minutes.

Florida.... I like that place.

fallenz24 · Posted: Tue Jul 07, 2009 1:12 am Post subject:

Any Updates?

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