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Lizard
Joined: 03 Nov 2002
Posts: 9364
Location: Abbotsford BC. Canada
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staticsan
Joined: 19 Jan 2009
Posts: 450
Location: Sydney, Australia
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 Posted: Fri Oct 22, 2010 8:28 am Post subject: |
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He needs a mount for the camera. Hand-held doesn't really cut it for the driving shots.
Interesting to observe that although a 911 body-shape will always be Very Nice, I find the rear-view of the 924 is still far superior to the Cayman. 
Wade. |
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Lizard
Joined: 03 Nov 2002
Posts: 9364
Location: Abbotsford BC. Canada
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| Posted: Fri Oct 22, 2010 10:55 am Post subject: |
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yes, I agree.
But look at the engine bay. Does anyone else notice something odd here?
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3 928s, |
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Khal
Joined: 26 Sep 2003
Posts: 4872
Location: Sunny and lovely interior BC, Canada
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| Posted: Fri Oct 22, 2010 1:09 pm Post subject: |
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emoore924's car is popular these days...
He lists the mod's, and there's a few of 'em. I guess it depends how you define "odd"?
But you got me, what's piqued your interest?
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'80 924 Turbo |
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tomcooper
Joined: 17 Feb 2004
Posts: 301
Location: Waterloo, Nebraska
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| Posted: Fri Oct 22, 2010 1:38 pm Post subject: |
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I would guess that I would have to question where the turbo is mounted. The charge tube has been modified and the nice shiny piece added.
Tom
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Casper and Big Red, both 1980 NA
Black Bart, 1990 944 S2 Cab |
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staticsan
Joined: 19 Jan 2009
Posts: 450
Location: Sydney, Australia
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| Posted: Fri Oct 22, 2010 2:54 pm Post subject: |
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It looks too long. They've re-routed the turbo's output to somehow come up behind the right headlight.
Maybe there's an intercooler after the turbo that we can't see.
Wade. |
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Lizard
Joined: 03 Nov 2002
Posts: 9364
Location: Abbotsford BC. Canada
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| Posted: Fri Oct 22, 2010 3:38 pm Post subject: |
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it must be too long since I have worked on these cars, and I must have been tired. HAHA
It had appeared at first glance to me that he was doing a blow through design on the CIS distributor instead of the suck through design that is stock.
Someone should do that though. It would simplify the plumbing greatly.
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3 928s, |
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bnoon
Joined: 12 Oct 2009
Posts: 607
Location: West Des Moines, IA USA
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| Posted: Sat Oct 23, 2010 1:39 am Post subject: |
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| staticsan wrote: | It looks too long. They've re-routed the turbo's output to somehow come up behind the right headlight.
Maybe there's an intercooler after the turbo that we can't see.
Wade. |
The air/water intercooler is staring you in the face at the 0:27 second mark in the video (letters PWR on it). There would be a heat exchanger elsewhere and a small circulation water/coolant pump to push water/coolant through the small black hoses leading to/from the intercooler.
| Lizard wrote: | it must be too long since I have worked on these cars, and I must have been tired. HAHA
It had appeared at first glance to me that he was doing a blow through design on the CIS distributor instead of the suck through design that is stock.
Someone should do that though. It would simplify the plumbing greatly. |
Blow through on a CIS wouldn't be any advantage at all, the pressure difference being after the turbo would blow the plate wide open every time boost hit. If you want to upgrade a CIS car to simplify plumbing, ditch the CIS and go EFI. The tube you see going into the airbox just feeds cooler outside air into the airbox instead of drawing in under hood air like stock.
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'80 924 Turbo - SOLD!
1986 Porsche 944 Turbo - SOLD!
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Lizard
Joined: 03 Nov 2002
Posts: 9364
Location: Abbotsford BC. Canada
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| Posted: Sat Oct 23, 2010 5:52 am Post subject: |
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You are wrong on the blow through.
There have been a few people who have done blow through designs and they have worked fine.
I would agree that the plate would be pushed wide open if it was simply a void behind it. But because it is a closed space. It will still measure air correctly as the engine is only going to allow as much as at it can use to move, and thus move the plate.
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3 928s, |
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Joes924Racer
Joined: 03 Nov 2002
Posts: 11964
Location: Oregon, Denver Colorado native!
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| Posted: Sat Oct 23, 2010 12:34 pm Post subject: |
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Was wondering where the engine bay shot was. That vids a classic
I like it.. | bnoon wrote: | | staticsan wrote: | It looks too long. They've re-routed the turbo's output to somehow come up behind the right headlight.
Maybe there's an intercooler after the turbo that we can't see.
Wade. |
The air/water intercooler is staring you in the face at the 0:27 second mark in the video (letters PWR on it). There would be a heat exchanger elsewhere and a small circulation water/coolant pump to push water/coolant through the small black hoses leading to/from the intercooler.
| Lizard wrote: | it must be too long since I have worked on these cars, and I must have been tired. HAHA
It had appeared at first glance to me that he was doing a blow through design on the CIS distributor instead of the suck through design that is stock.
Someone should do that though. It would simplify the plumbing greatly. |
Blow through on a CIS wouldn't be any advantage at all, the pressure difference being after the turbo would blow the plate wide open every time boost hit. If you want to upgrade a CIS car to simplify plumbing, ditch the CIS and go EFI. The tube you see going into the airbox just feeds cooler outside air into the airbox instead of drawing in under hood air like stock. |
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1979 porsche 924 Na
1980 porsche Turbo 931GT Replica
Have u ever driven a turbo. |
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joejax
Joined: 02 Dec 2009
Posts: 919
Location: Jacksonville,FLA,USA
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| Posted: Sat Oct 23, 2010 12:39 pm Post subject: |
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Hey Joe, did you see that squirrel sitting in the engine bay too?
It's kinda right in the middle near the back, reminds me of a funny story... 
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I got nothin'
Uhhh...you got any pics? |
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staticsan
Joined: 19 Jan 2009
Posts: 450
Location: Sydney, Australia
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| Posted: Sun Oct 24, 2010 6:21 am Post subject: |
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[quote="bnoon"]
The air/water intercooler is staring you in the face at the 0:27 second mark in the video (letters PWR on it). There would be a heat exchanger elsewhere and a small circulation water/coolant pump to push water/coolant through the small black hoses leading to/from the intercooler.
Of course! I just hadn't seen it like that before!
Wade. |
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bnoon
Joined: 12 Oct 2009
Posts: 607
Location: West Des Moines, IA USA
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| Posted: Sun Oct 24, 2010 8:39 am Post subject: |
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| staticsan wrote: | | bnoon wrote: |
The air/water intercooler is staring you in the face at the 0:27 second mark in the video (letters PWR on it). There would be a heat exchanger elsewhere and a small circulation water/coolant pump to push water/coolant through the small black hoses leading to/from the intercooler. |
Of course! I just hadn't seen it like that before!
Wade. |
Yeah, the "inline" core layouts aren't that popular and are usually quite expensive compared to other core designs. I've used cores from frozenboost and cxracing in past projects and plan to do so again on my 931.
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'80 924 Turbo - SOLD!
1986 Porsche 944 Turbo - SOLD!
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dpw928
Joined: 02 Nov 2002
Posts: 1860
Location: owasso, ok 74055
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| Posted: Mon Oct 25, 2010 10:01 am Post subject: |
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| Lizard wrote: | You are wrong on the blow through.
There have been a few people who have done blow through designs and they have worked fine.
I would agree that the plate would be pushed wide open if it was simply a void behind it. But because it is a closed space. It will still measure air correctly as the engine is only going to allow as much as at it can use to move, and thus move the plate. |
Agree about the plate but the pressure from boost in the plenum can cause a counter force on the piston in the distributor and affect the A/F mixture. The ones I have seen plumbed this way had a high A/F mixture when under boost. This was on a 928 which didn't have a frequency valve/O2 adjustment, so a later 924 may be able to adjust.
Dennis
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81 931 5 sp
78 928 5 sp Silver
78 928 AT Euro Black |
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