Search found 2454 matches

by TireSmoker
Mon Sep 04, 2023 10:31 am
Forum: Projects
Topic: 1963 Corvette
Replies: 85
Views: 118904

Re: 1963 Corvette

So with barely a few drives on the new exhaust system, both donut gaskets failed miserably, but of course not at the same time. First the driver's side, and I swear not a week after I did that one, the passenger side failed. I got the passenger side replaced yesterday with the departure of the Porsc...
by TireSmoker
Sat Sep 02, 2023 4:58 pm
Forum: Projects
Topic: 1987 Corvette Z52
Replies: 164
Views: 147573

Re: 1987 Corvette Z52

I made a trip to the Tiresmoke Munson outpost to pick up a little hardware for the Porsche project and to see the DirtVette in person!
by TireSmoker
Sat Sep 02, 2023 4:18 pm
Forum: Projects
Topic: Porsche 944 Megasquirt conversion
Replies: 25
Views: 10366

Re: Porsche 944 Megasquirt conversion

The 944 went back home to Scott's today. I was able to do a little street driving with it the past couple days and I have a rough tune in there. It starts and idles easily, I plan to do a little more tuning during our Friday practice session. This one was a hard project to document, because I was st...
by TireSmoker
Tue Aug 29, 2023 10:44 am
Forum: Projects
Topic: Porsche 944 Megasquirt conversion
Replies: 25
Views: 10366

Re: Porsche 944 Megasquirt conversion

Also, Tom came over again last night and we got the timing belt cover put back, zip tied some wiring and took it for the first test drive -- just down my street and the next street over to the cul-de-sac. I'm sure I looked pretty hillbilly to the woman and her daughter near the cul-de-sac with no ho...
by TireSmoker
Tue Aug 29, 2023 10:26 am
Forum: Projects
Topic: Porsche 944 Megasquirt conversion
Replies: 25
Views: 10366

Re: Porsche 944 Megasquirt conversion

I discovered it by posting a thread on the msextra.com/forums -- in TunerStudio, you can take a 'tooth log' which shows the trigger pattern seen by the CPU in detail. I don't know how to analzye/interpret those logs, but there are guys on the forum who know and help. So I posted a bunch of logs, mad...
by TireSmoker
Tue Aug 29, 2023 12:59 am
Forum: Projects
Topic: Porsche 944 Megasquirt conversion
Replies: 25
Views: 10366

Re: Porsche 944 Megasquirt conversion

This setting. Which, ironically, is what I use on my Chevelle and Malibu, but its a different sensor, and the default is to use Rising Edge. Even when my cars were set wrong, they still started up and ran. I mean, the Chevelle ran *great* with the wrong setting until 5100 RPM, when it had a hard cut...
by TireSmoker
Sun Aug 27, 2023 10:49 pm
Forum: Projects
Topic: Porsche 944 Megasquirt conversion
Replies: 25
Views: 10366

Re: Porsche 944 Megasquirt conversion

So I haven't posted too many updates, because the car **still** doesnt run. The signal from the factory crankshaft position sensor would drop out to 0 while cranking. I tried reversing polarity, adding a 10k resistor, tried adjusting these 'pots' on the mainboard. Nothing was helping, the Megasquirt...
by TireSmoker
Wed Aug 16, 2023 8:49 pm
Forum: Projects
Topic: Porsche 944 Megasquirt conversion
Replies: 25
Views: 10366

Re: Porsche 944 Megasquirt conversion

So I got the injectors swapped during my lunch hour today. I removed the low-impedance 28lb injectors and installed high-impedance 30lb injectors. Still no start. Not even a cough, which was puzzling. Further troubleshooting revealed that the fuel lines were hooked up backwards. No wonder I wasn't g...
by TireSmoker
Tue Aug 15, 2023 11:57 pm
Forum: Projects
Topic: Porsche 944 Megasquirt conversion
Replies: 25
Views: 10366

Re: Porsche 944 Megasquirt conversion

It's been a while since I posted an update, but a lot of progress has been made despire losing almost a week to being sick and other assorted ailments. However, a lot has gotten done. I'm using the S2's factory 60-2 crank sensor. I'm seeing RPM signal when cranking the engine. I need to verify TDC a...
by TireSmoker
Tue Aug 15, 2023 10:25 pm
Forum: General Discussion
Topic: register new number
Replies: 1
Views: 1560

Re: register new number

Sorry I'm late on this Matt... just give me a username and password to use (priv message, email, txt, whatever) and I'll set it up.

-Dave
by TireSmoker
Thu Aug 03, 2023 2:30 pm
Forum: Projects
Topic: 1987 Corvette Z52
Replies: 164
Views: 147573

Re: 1987 Corvette Z52

I'm pretty sure the rear toe-in is adjustable -- there's a spec for it, at least. You might be able to fix it without losing your lowered stance.

-Dave
by TireSmoker
Wed Aug 02, 2023 11:33 pm
Forum: Projects
Topic: Porsche 944 Megasquirt conversion
Replies: 25
Views: 10366

Re: Porsche 944 Megasquirt conversion

I got some progress under my belt here the past couple days. Starting with a cardboard template, I made a mounting plate from some aluminum (courtesy CutNPaste). I mounted the MS3X on some MSD rubber isolation mounts. I got fancy with the fuse panel and relays, using rivet nuts to mount them. No sel...
by TireSmoker
Sun Jul 23, 2023 3:33 pm
Forum: Projects
Topic: Porsche 944 Megasquirt conversion
Replies: 25
Views: 10366

Re: Porsche 944 Megasquirt conversion

The intake manifold is unusually large, I think.
by TireSmoker
Sun Jul 23, 2023 1:33 pm
Forum: Projects
Topic: Porsche 944 Megasquirt conversion
Replies: 25
Views: 10366

Porsche 944 Megasquirt conversion

Scott brought the Fickle Bitch Racing Porsche 944 over for a Megasquirt conversion today. The car was upgraded to a 3.0L S2 engine over the winter, which should be good for +60hp over the previous engine. Since I'm one of the drivers for Mid-Ohio in September, I have a very vested interest, and also...