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Location: Peoples Republic of Long Beach, NY
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I found some info on the relationship of CHT and EGT.. after you hit the site, go to p. 24, 25, 26..
my up-grade from the CHT only to a combo instrument is in motion http://www.jpinstruments.com/PilotsGu.pdf
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Ronin LB '77 911s 2.7 PMO E 8.5 SSI Monty MSD JPI w x6 |
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04-26-2003, 04:54 AM
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the JPI unit is big bucks.. the extension harness cost me $150
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Ronin LB '77 911s 2.7 PMO E 8.5 SSI Monty MSD JPI w x6 |
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04-26-2003, 05:02 AM
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Have you settled on a unit? How and where are you going to mount it?
JG
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1985.5 944 GTS |
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04-26-2003, 05:25 AM
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Quote:
I ordered the JPI 700 6c unit.. it'll be mounted on the console.. the ga. itself is 2 1/4in.. the outside box is not much bigger, but it's 7 1/2in deep.. alarm will trigger for pinging, clogged carb, etc.. read the pfd from the site I just posted.. I'm not saying this is necessary for everyone.. I have special needs on my rides for sure..........Ron
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Ronin LB '77 911s 2.7 PMO E 8.5 SSI Monty MSD JPI w x6 |
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04-26-2003, 05:40 AM
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JPI 700 6c unit,Any webite for this thing?
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10.76@139-1/4 mile 0-1 mile 193MPH I Love to Shine Cars 
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04-26-2003, 05:59 AM
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website
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10.76@139-1/4 mile 0-1 mile 193MPH I Love to Shine Cars
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04-26-2003, 05:59 AM
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The link above is not working 4 me
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10.76@139-1/4 mile 0-1 mile 193MPH I Love to Shine Cars
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04-26-2003, 06:01 AM
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Hey Juan..
the previous post site is an Acrobat Reader pfd file.. try this site for the JPI info http://www.jpinstruments.com/ you gotta be serious for this install.. but it's great reading entertainment anyway.. enjoy..................Ron
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Ronin LB '77 911s 2.7 PMO E 8.5 SSI Monty MSD JPI w x6 |
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04-26-2003, 06:18 AM
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I came across this on the Westach web page. It is 3" which is a little smaller that the 3.125" Porsche clock gauge. With a little work it would fit in nicely.
It is nice because you see boost and EGT on the same gauge. If your really insane you could put a 6 way switch to monitor all EGTs. 
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Tony '78 911SC with BITZRACING EFI conversion kit |
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04-26-2003, 06:41 AM
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I am floored. The EDM-700 sounds like a data junkie's ultimate fix. Combine with a racing datalogger and you'd have data coming out of your ears.
Ronin LB, can you explain a little bit how you plan to install and use the EDM? Which of its 24 engine temperature, flow, rpm, and pressure monitoring functions (wow) are you going to use, and what work will be required to install the sensors? Are you getting the Long Term Memory Option? What is this $150 harness you referred to? How did you find anything related to the EDM-700 that was as cheap as $150? I'll have to enjoy this vicariously through you, as the price is out of my league, so please start delivering the vicarious enjoyment . . .
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1989 3.2 Carrera coupe; 1988 Westy Vanagon, Zetec; 1986 E28 M30; 1994 W124; 2004 S211 What? Uh . . . “he” and “him”? |
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04-26-2003, 06:50 AM
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Quote:
yeah.. it's the ultimate fix, LOL I'm only interested in EGT and CHT.. no need for the rest, I think.. the CHT probes replace the spark plug gaskets, and the EGT probes are installed by drilling a hole in the exhaust tubes.. the $150 was for the extended harness.. so it's a simple install that gives extraordinary information when combining the outputs of the EGT & CHT on each cylinder.. if you can download the Acrobat Reader file from the site that I posted you'll read about diagnosing pinging, clogged spark plugs, poor valve adjustment, weak cyl compression, etc.. the alarms are cool........Ron
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Ronin LB '77 911s 2.7 PMO E 8.5 SSI Monty MSD JPI w x6 |
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04-26-2003, 07:21 AM
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Quote:
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Ronin LB '77 911s 2.7 PMO E 8.5 SSI Monty MSD JPI w x6 |
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04-26-2003, 07:31 AM
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Knowing Ron, I can understand why he wants this. He's a guy who doesn't need unanswered questions, and the questions he asks are legit ones. With this unit in place, there won't be much going on in the engine that he won't know about...
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"Now, to put a water-cooled engine in the rear and to have a radiator in the front, that's not very intelligent." -Ferry Porsche (PANO, Oct. '73) (I, Paul D. have loved this quote since 1973. It will remain as long as I post here.) |
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04-26-2003, 09:20 AM
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Thank$ for the Inf.
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10.76@139-1/4 mile 0-1 mile 193MPH I Love to Shine Cars
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04-26-2003, 11:51 AM
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Posted a pic of my installation. Worked out better than I had hoped. Whenever the engine skips a beat, is rough...I can usually track it to the cylinder that's suspect. Very Nice!!
Yes, one of them is pegged high. I'm ringing out wires while engine is out. Ron: Keep us updated on your fittment. I'll be running a Motec with 6 VDO cht's. I placed the cht sensors on the standard motronic cht sensor location on ALL heads. Had some special bolt made to mount and clear during motor assembly. Works great but I think the EGT would be nice for futher tuning but no more room in my console. In aviation and I knew about these units but hadn't heard of anyone using for aircooled auto application. Looking forward to hearing more.... 
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04-27-2003, 08:31 PM
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Quote:
when I spoke to JPI, the tech never heard of it being ordered on a car.. although the JPI owner has it on his BMW.. but the tech figured it was probably for PR so my unit is being made up at JPI.. then drop shipped.. then I gotta match up the EGT probes to the SSI.. I figure 2 weeks before I have it installed/at least. this unit, and a bunch of other stuff is being done as prep work for new cams and PMOs.....Ron
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Ronin LB '77 911s 2.7 PMO E 8.5 SSI Monty MSD JPI w x6 |
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04-27-2003, 08:58 PM
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Let us know how it works on the SSIs. That is my sticking point for now, with my luck I am almost certain to break an exhaust stud.
Olivier
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Olivier Hecht 1982 911SC Last edited by ohecht; 04-29-2003 at 06:22 PM.. |
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04-28-2003, 07:25 PM
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sure will.. I didn't think anybody was interested with this on a non-turbo street car.. I need the thread size of the O2 SC sensor to plug my SC SSI........Ron
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Ronin LB '77 911s 2.7 PMO E 8.5 SSI Monty MSD JPI w x6 |
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04-28-2003, 08:20 PM
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I believe they are M18x1.5
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Tony '78 911SC with BITZRACING EFI conversion kit |
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04-28-2003, 08:23 PM
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Quote:
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Ronin LB '77 911s 2.7 PMO E 8.5 SSI Monty MSD JPI w x6 |
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04-28-2003, 09:15 PM
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1984 Porsche 911 3.2
1988 Porsche Carrera 3.2 Turbo
1989 Porsche 911 Carrera 3.2
