Re: Ford vs Chevy Build-up
Rich, is the upper intake powder coated, or painted ?
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Re: Ford vs Chevy Build-up
It's just painted Jerry.
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Re: Ford vs Chevy Build-up
What kind of paint, and what color it is?
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Re: Ford vs Chevy Build-up
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Re: Ford vs Chevy Build-up
Arrived late at Bowling Green today and only got one qualifying run. The injector/MAF swap proved to be only a marginal improvement. First pass was a 13.56 @ 96.42mph. I glanced at the afr gauge thru the lights and it was showing 11.6...far from the desired 13.5 afr.
Before first round I pulled 12 percent fuel across the board and was going to lower the fuel pressure a bit, but it was already below 40psi. Next pass only improved to a 13.51 @ 96.80mph. I'm thinking the next time I have this junk out I will remove the controller completely and run it on the stock ecm for effect...just about out of ideas here. :( |
Re: Ford vs Chevy Build-up
Rich, knocking off 2 seconds isn't too bad, Lol. Seriously though, how much timing are you running ? 30 degrees total is a pretty good start.
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Re: Ford vs Chevy Build-up
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Re: Ford vs Chevy Build-up
Rich it was good to see you this weekend. Thanks for the video and the pics of the car.. It was a great learning experience for Nick an the car.. Hang in there with yours it will get there. If we can help in anyway let me know. Scott
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Re: Ford vs Chevy Build-up
Thanks Scott...like we briefly discussed this weekend, I believe I will take that controller out of the loop and see what the factory ecm does for afr's.
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Re: Ford vs Chevy Build-up
Took the Mustang to the track this evening to try and improve one last time...no joy. It seems no matter what I adjust it makes no difference, even with wild swings with fuel or timing.
Injectors swapped for 19's and a stock MAF sensor...checked phasing for rotor as well. I'm beginning to wonder if this controller is defective...the only thing I did not try this evening is bypassing the controller completely and run it on the factory ecm alone. I made about ten passes total...the last five the track went away and it spun the tires badly every time. Best et was 8.54 and lagged to 8.70's as the starting line went to hell. My data logger proved to be finicky as well all night...no conclusive data to review. It appears this one will have to go to a chassis dyno along with someone experienced with this efi to ever get it sorted out. I'm totally disgusted right now with the entire deal. Such a shame as this is the easiest combination to drive that I have ever sit in...cuts killer lights time after time. http://i434.photobucket.com/albums/q...pstgkvd3bk.jpg http://i434.photobucket.com/albums/q...psprkc9occ.jpg http://i434.photobucket.com/albums/q...psf8vz10zf.jpg http://i434.photobucket.com/albums/q...psj95kjz3p.jpg http://i434.photobucket.com/albums/q...ps2evqnous.jpg |
Re: Ford vs Chevy Build-up
10 passes and you didnt bypass the controller,should have tried.Dont give up yet,maybe a chassis dyno is the right thing to do.
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Re: Ford vs Chevy Build-up
Backed it off the trailer this morning and removed the controller. Took it for a spin down the state road in front of my subdivision...can't really see a difference in it which is troubling in itself. Rev limiter being capped at 5800 does not help either.
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Re: Ford vs Chevy Build-up
Using a stock eec4 pcm?
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Re: Ford vs Chevy Build-up
Do the plugs look like they could use more or less timing?Can the cam be too big/ small? Is your cyl compression low?Too much or not enough gear?5800 might be enough rpm depending on combo.
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Re: Ford vs Chevy Build-up
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http://i434.photobucket.com/albums/q...psakymyrps.jpg Leak down test from sometime last year...I think I did it correctly. http://i434.photobucket.com/albums/q...pswhorccoz.jpg 4.56 gear, 26" tire, 2.92 low C-4, 8" converter, Comp stocker grind cam. Nothing special on the heads...new valves with appropriate springs. Engine just feels flat and not pulling hard all the way down the track. Feels like it picks up a little at the top of third gear. http://i434.photobucket.com/albums/q...psezvjdnlg.jpg |
Re: Ford vs Chevy Build-up
Can the lsa be too tight with too much int. duration screwing with the fuel inj.?The way you explained it, it sounds like big int. duration with early ivc I think there are other possibilities that you can get back your mid tq. /hp without sacrificing top end.This setup now only shows less than 300 hp.Dont give up on a car that is easy to repeat/comfortable .
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Re: Ford vs Chevy Build-up
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Re: Ford vs Chevy Build-up
What controller?? Buy it new? Stock AFR will be 15-16 in high gear at 6000. Just getting the AFR to 12.5-13.0 will pick it up 5 tenths.
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Re: Ford vs Chevy Build-up
I started out years ago with my 87 mustang M/SA set up just like yours and first time out went 12.50's. I had 30 inch tires with 5.13, but your 56's with 26 inch tires shouldn't be to far off. Key is the automatic cars don't like being reved up, I shifted at 5400 and went thru at around 6400. But the main difference is the computer. We had an old Accel in the beginning and later put a FAST in it. These are very good combos don't give up, just put a real computer in it. By the way I'm just finishing up my 92 mustang in SS/LA with same fuel injected 5.0 and we're gonna see if we can't get one to run well SS.
Bret Velde 2003 SS/LA (real soon) |
Re: Ford vs Chevy Build-up
The factory rev limiter on that A9P should be 6250. Why 5800?
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Re: Ford vs Chevy Build-up
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Re: Ford vs Chevy Build-up
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Re: Ford vs Chevy Build-up
Keep at it you'll figure it out.
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Re: Ford vs Chevy Build-up
I know this has been suggested but if you have a good shop near you that can tune, they can give you an sct chip with mutilple tunes on it that will allow you to know the motor is making the most power in current configuration
Is not "ideal" in that you won't be able to make adjustments at the track but will at least allow you to find any problems in the electronics/tune and get the car down the track There is a good shop by me with a chassis dyno and a guy with a lot of experience and he helped me with a car I just could get right with moates quarter horse piggy back tuner. Idles great makes awesome power and just flat works That's where id go next ... Awesome build hope you get it sorted |
Re: Ford vs Chevy Build-up
Maybe this will help some. Guys got a heavy accent though.
https://learntotune.leadpages.co/int...fi-tuning-610/ |
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