Search found 9 matches

by ascott
Mon Apr 13, 2015 7:12 am
Forum: General Motors
Topic: 1985 Pontiac Grand Prix, 350 cubic inch Chevrolet, TPI
Replies: 13
Views: 46258

Re: 1985 Pontiac Grand Prix, 350 cubic inch Chevrolet, TPI

I honestly don't remember, Dan. Sorry!
by ascott
Wed May 23, 2012 8:37 pm
Forum: General Motors
Topic: 1985 Pontiac Grand Prix, 350 cubic inch Chevrolet, TPI
Replies: 13
Views: 46258

Re: 1985 Pontiac Grand Prix, 350 cubic inch Chevrolet, TPI

No, I sold the engine and had to scrap the car. I don't think I have any of my tune files anymore, either.

Be careful of your header choice. My biggest problem was burning up ignition wires on the exhaust. Beyond that, get a wideband O2 and let it tune itself.
by ascott
Thu Sep 04, 2008 8:12 am
Forum: General Motors
Topic: 1985 Pontiac Grand Prix, 350 cubic inch Chevrolet, TPI
Replies: 13
Views: 46258

Re: 1985 Pontiac Grand Prix, 350 cubic inch Chevrolet, TPI

So, I've finally gone off and done the modes and put a computer controlled distributor in this thing. It works great. I used these instructions: http://www.diyautotune.com/tech_articles/how_to_megasquirt_your_chevy_smallblock_v8_v6.htm I fought with what I though were bad HEI modules, but it turned ...
by ascott
Thu Aug 28, 2008 6:25 am
Forum: General Motors
Topic: 1985 Pontiac Grand Prix, 350 cubic inch Chevrolet, TPI
Replies: 13
Views: 46258

Re: 1985 Pontiac Grand Prix, 350 cubic inch Chevrolet, TPI

Yet another update. This is my latest. Gas mileage is ~14.5mpg in the city with this map, but I'm using a vacuum advance distributor and it's really not working too well. Past 2000rpm at part throttle, it's adding too much timing and the spark's jumping towers, causing a miss. Hoping to get a comput...
by ascott
Thu Jul 03, 2008 5:02 pm
Forum: General Motors
Topic: 1985 Pontiac Grand Prix, 350 cubic inch Chevrolet, TPI
Replies: 13
Views: 46258

Re: 1985 Pontiac Grand Prix, 350 cubic inch Chevrolet, TPI

Here's the latest, the last set were maps that compensated for a nasty miss it took me three burned sets of plug wires to fix. The car runs VERY well under these. It should bark gears, but this 150,000+ mile 200-4R is shifting a little soft. I haven't been able to get to a track or dyno to properly ...
by ascott
Thu Apr 24, 2008 6:45 am
Forum: General Motors
Topic: 1985 Pontiac Grand Prix, 350 cubic inch Chevrolet, TPI
Replies: 13
Views: 46258

Re: 1985 Pontiac Grand Prix, 350 cubic inch Chevrolet, TPI

Okay, I think I'm happy for the time being. Attached you will find my .msq, my exported VE map, and my exported afr target table. These have all been tuned on the road using MegaLogViewer. You'll notice if you poke around inside the MSQ that I have EGO correction off. I don't use it anymore. Once ML...
by ascott
Wed Apr 09, 2008 7:22 am
Forum: General Motors
Topic: 1985 Pontiac Grand Prix, 350 cubic inch Chevrolet, TPI
Replies: 13
Views: 46258

Re: 1985 Pontiac Grand Prix, 350 cubic inch Chevrolet, TPI

Sorry for the delay in getting my VE table and MSQ files up. It's been a long process, but I haven't forgetten. Fuel mileage has not been as expected. I just got a wideband on the car last night and made a quick jaunt around the neighborhood, and my map was really, really rich. I have a good 30 mile...
by ascott
Fri Feb 29, 2008 11:31 am
Forum: General Motors
Topic: 1985 Pontiac Grand Prix, 350 cubic inch Chevrolet, TPI
Replies: 13
Views: 46258

chris89tsi wrote:would you happen to have that ve table from bruce handy by chance


Thanks

CHRIS
http://www.megamanual.com/v22manual/mtune.htm#ve

Scroll down a bit from there.
by ascott
Tue Nov 27, 2007 1:14 pm
Forum: General Motors
Topic: 1985 Pontiac Grand Prix, 350 cubic inch Chevrolet, TPI
Replies: 13
Views: 46258

1985 Pontiac Grand Prix, 350 cubic inch Chevrolet, TPI

Name: Andrew Vehicle: 1985 Pontiac Grand Prix Engine: 355 CI Small block Chevrolet (Iron heads, Comp Cams XE262H camshaft) Injection: Tuned Port Injection (TPI) from a 1989 Camaro 5.7L (22lb injectors) Description: MSI v2.2 Hardest parts of this were reaming and spot-facing the post-1987 lower inta...