924Board.org

Martijnus · Joined: 29 Dec 2006 Posts: 2019 Location: Netherlands

It runs

edit: here's the video (7mb, 1min).
Try: Save as... at least over here clicking it won't work

hmm if I download it myself it's 1.57kb... I'll up it on youtube to be sure.

http://www.youtube.com/watch?v=DgkLsfnUMGQ

Sound isn't really as bad as it looks, but you can hear it run quite good

There's no exhaust under it yet... only downpipes.
/edit.

A friend of mine helped me with the last things which I couldn't do on my own due to my temporary handicap.

Radiator, distributor, some wiring stuff, spark plug testing... etc.

After all the checks, like spark, fuel pressure etc etc, we hooked up the injectors and thought we would see what happened.

Fire extinguisher was ready to use and I didn't expect anything to happen, because MS and my ignition aren't set right.

I just had MS make a crude table for afr and VE, spark went by the stock system...

Cranking cranking... a puff! more cranking little bit of throttle.... another puff!

More than I expected. At the last start the engine turned a bit the wrong way while I switched it off, so there was some smoke from the #2 air filter.

I planned to try to start it everyday, to see when it got better.

Smoked a sigaret to prevent flooding... and after that, I cranked, with a few percent of throttle... and it was alive!

It kept running with minor throttle, and when I gave it more throttle its response was wonderful! it climbed up to 3000 rpm in notime.

Since I've got no exhaust and was running without any coolant and more important, the engine is rebuilt, I didn't rev it too much.

Oil pressure was 8 bar, alternator gave output, everything went the right way.

I had my friend make a video with my phone, but the sound is nastyyyyy. Very metallic, which you can't hear irl but on the video it's crap.

Friend has a few secs on his phone...that's a better sound.

I'll up the video as soon as possible...

Now, as I see it.... this couldn't go any better!
I didn't expect it to response to my throttle without any tuning at all... and I wasn't sure if the throttlebodies and raised compression ratio would allow it to run anyway... but it still runs at 1000 rpm.. even have it idling (ok, throttle/idle screw is set 1% open).

Haven't got fast idle stuff or something...

wow... I'm so happy... it runs, it didn't blow, it didn't leak, my modifications work perfectly and MS has it running quite well on the first try.

What are the odds

Only down side: my AFR (LC1) isn't giving me anything... in megatune it keeps at 7.50 afr, and my gauge in my dash isn't giving me any reading too... but if 7.50 is correct, it's outside the gauge's scope.

I'll move this whole thing to my other thread, because now I don't know what to do....make a log?

First I have to see if I've got AFR at all, but I have to get the exhaust (from mid muffler on) on too.

The only thing that could make it less good is that I don't have any torque left with the TB's....but that's not a worry for now

Yeah... one of the first TB'd NA's

_________________
"Rule: Turbo's make torque, and torque makes fun." (C. Bell)

924 "50-jahre", 1981.
MSII/extra, LPG, ITB's, 5lug.
To be turbo'ed in a while.
Killed her at the Nurburgring, Porscheless at the moment

Doodle · Posted: Mon Sep 29, 2008 2:54 am Post subject:

Great news. Let me be the first to congratulate you. It's always a scary moment when you first turn the key after a major teardown even if you haven't performed a lot of unauthorized mods.
_________________
Doodle
Pre 77.5 Mars Red

baldwin · Posted: Mon Sep 29, 2008 3:13 am Post subject:

Excellent!

Can't wait to hear it! I should bring some ear protection huh?

That mp4 link doesn't work, one way or the other. Youtube to the rescue?

Edit: I can bring some coolant tomorrow, let me know.
_________________
924 parts, http://verkopers.marktplaats.nl/10266983
'98 Volvo 940 LPT Estate

Martijnus · Joined: 29 Dec 2006 Posts: 2019 Location: Netherlands

video is youtubed now

I've got enough coolant

I'm prepared

_________________
"Rule: Turbo's make torque, and torque makes fun." (C. Bell)

924 "50-jahre", 1981.
MSII/extra, LPG, ITB's, 5lug.
To be turbo'ed in a while.
Killed her at the Nurburgring, Porscheless at the moment

baldwin · Posted: Mon Sep 29, 2008 4:13 am Post subject:

It sounds incredible... and it revs up very fast. Did you lighten the flywheel?
_________________
924 parts, http://verkopers.marktplaats.nl/10266983
'98 Volvo 940 LPT Estate

Rasta Monsta · Joined: 12 Jul 2006 Posts: 11733 Location: PacNW

Great job, man. That motor sure looks different without all that CIS crap clinging all over it like crabs on a can of cat food.
_________________
Toofah King Bad

WeiBe (1987 924S 2.5t) - 931 S3

CorsePerVita · Joined: 25 Jul 2008 Posts: 1992 Location: Redmond, Oregon

sounds awesome! i bet you're happy! lol
_________________
- 1977 Porsche 924 2.0 N/A (Trackday Project)
- 1979 Porsche 924 2.0 N/A (The other daily)
- 1980 Porsche 931 (Daily)
- 1987 Lamborghini Jalpa
- 1999 Ducati 900SS

Martijnus · Joined: 29 Dec 2006 Posts: 2019 Location: Netherlands

Haven't lightened anything. I was really afraid (still am until I've had a drive) that I'd lose much torque and low end power due to the throttle bodies. So the flywheel and cam etc weren't changed. I didn't want to change too much in one time... rebuilding, raising compression, mounting TB's and running MS was actually too much in one go...

I'm really surprised the engine revs this smooth without tuning. I'd expect at least some sort of hickups or something.

I'm not starting it too much. Tomorrow when baldwin comes by I'll start it for the last time for the next couple of weeks. I want to get the 44 expansion tank and other stuff at home first.

In the meantime I'll get my center console back in and probably try to get the EDIS stuff in it so that the switch to EDIS will just be a matter of changing the plug leads.
_________________
"Rule: Turbo's make torque, and torque makes fun." (C. Bell)

924 "50-jahre", 1981.
MSII/extra, LPG, ITB's, 5lug.
To be turbo'ed in a while.
Killed her at the Nurburgring, Porscheless at the moment

baldwin · Posted: Mon Sep 29, 2008 7:34 am Post subject:

Martijnus · Joined: 29 Dec 2006 Posts: 2019 Location: Netherlands

baldwin · Posted: Mon Sep 29, 2008 7:49 am Post subject:

Martijnus · Joined: 29 Dec 2006 Posts: 2019 Location: Netherlands

I'll have coffee

_________________
"Rule: Turbo's make torque, and torque makes fun." (C. Bell)

924 "50-jahre", 1981.
MSII/extra, LPG, ITB's, 5lug.
To be turbo'ed in a while.
Killed her at the Nurburgring, Porscheless at the moment

Smoothie · Posted: Mon Sep 29, 2008 8:42 am Post subject:

After a rebuild, the procedure is to start and run it stationary somewhere in the 1800-2500 rpm range for about 20 minutes. (Look it up to verify first...the actual number might be 1800, or 2500 rpm, or something else.) -But the important thing is to not let it idle during that first 20 minute stationary run after a rebuild, and for the first few hundred miles of actual driving beyond that.
_________________
"..it's made in Germany. You know the Germans always make good stuff."

'82 924T, US version, dark green metallic, 5 speed Audi 016G gearbox

Rich H · Posted: Mon Sep 29, 2008 5:13 pm Post subject:

Good work!

glad it runs OK!

I'll second what the doggo says, don't let it idle (If it will at all) as the oil pressure will drop too low also idle is quite hard on engines as there is lots of stop starts and accel-decels. also the rings won't bed in.

Keep up updated!

_________________
1994 Lotus Esprit S4 - Work in progress...
1980 Porsche 924 S2 DITC Turbo - Original spec
1978 Homo-Sapiens - Tired spec
1953 Landrover S1 - Pensioner Spec

924turbo_sout_africa · Joined: 29 Oct 2007 Posts: 215 Location: Sout africa

glad it all runsa well ....now lets hope you recover as fast as the car operation did

.......

well mmm running in the motor too many suggestions only 1 from ym side is keep it below 4000rpm for 500km after that if it gona break it is going to do that no matter what ....my race motors running in procedure is as follows: start motor wait for oil pressure once that is there well onto the track 2 laps of slow driving exel and slow donw 3rd lap hammer it to the max ....mmm havent broken any motors that way yet ! but i'm sure a lot of people say never do that well mmmm your decision hehe
_________________
Porsche ...where dreams are a reality
'79 924 turbo canada spec
'98 Formula Vee (M3 eater)

Time in the 931 is a dream come true !!