Upgrade to SPA from ISSPRO EGT

[RobG]

My ISSPRO EGT guage died on Friday. And right before a trip where I'd be loaded and pulling a few nice grades. Lovely.

I decided since the guage was dead, I'd go ahead and upgrade to an SPA guage. I was VERY pleased with the service of the folks at Diesel Injection for getting the packaging done for me in time to have Fedex pick it up for me, for Saturday delivery.

When it arrived, I was very disappointed to discover that SPA's thermocouple is absolutely NOTHING like the one I'd used with the ISSPRO, despite somebody (I wish I could remember who) telling me that I could use the old thermocouple.

The problem is that I've already drilled and tapped my manifold and installed a 3/4" (?) fitting that has a 1/4" (?) section sticking out the top. That's where the cap that's on the ISSPRO thermocouple screws onto.

The SPA one, on the other hand, is quite the opposite. It has a 3/8" (?) piece that's threaded on the OUTSIDE. So now I need to know this: Where can I get the fittings to (a) adapt the new thermocouple to the existing fitting already in the manifold, or (b) replace the fitting in the manifold with a new fitting that'll accept the new thermocouple?

I may be stuck with having to get another ISSPRO guage, and return this one that I spent probably $40 or more in overnight/Saturday shipping to get in time, and not be able to use. :/

Help?

Rob

 

[John]

RobG, the SPA Boost/Pyrometer gauge uses a 1/8-27 NPT thread for the pyrometer thermocouple.

What about using a brass (preferred) or stainless steel reducer bushing? [brass or stainless steel do not have the corrosion problems associated with plated steel] It should work as the SPA thermocouple is adjustable for depth. The thermocouple depth should be set to 1/8" into the exhaust stream (per SPA installation instructions).

Remember to use anti-sieze on the threads.

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John Treibel
'98. 5 2500 QC 4x4 Sport, Glasstite Vision II, 285 BFG A/Ts on M/T Challengers, Warn 4X Boards, Mopar fender flares & tow hooks, NW Custom s/s-rubber mud flaps and accs. , Mag-Hytec diff. cover & trans. pan, Edelbrock IAS shocks, Reese Titan V hitch, SPA gauges (3), Dynamat, '00 Sport grille and headlights/PIAA Super White bulbs, PIAA Dual Sport 900 aux. lights, BD exh. brake, Amsoil Dual Remote Bypass, Optima Yellow Tops, DD3s/DD Boost Module, Aeroquip AQP braided s/s fuel hoses, Banks High-Ram intake manifold and 14 cm2 turbine housing w/Big Head wastegate actuator, ATS 3-piece exh. man. , Banks 4" dia. s/s exh. sys. , DTT 93% TC, DTT custom tuned VB, BD modified trans. front pump (enhanced by DTT), Air Bulldog induction hood (with NACA ducts), plus MANY other trick modifications

[This message has been edited by John (edited 01-22-2001). ]

 

[Bryan Brenneman]

Email Ron at SPA. You should not have any problems. Ron has some isspro thermocouples with the SPA ends on them. No big deal.

 

[RobG]

Anybody have an email for Ron @ SPA?

Thanks!

Rob

 

[Bryan Brenneman]

Sure do, guess I should have included that.
Ron Mathis rm@spatechnique.com
The web page is here.
There is also SPA links in my sig.

Bryan

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<font color=blue>'94,</font> <font color=teal>2500</font>, <font color=olive>5 speed</font>, <font color=navy>4X4</font>, <A HREF="http://www.line-x.com" TARGET=_blank><font color=maroon> Line-X liner OTR</A></font>, <A HREF="http://dallnd6.dal.mobil.com/GIS/MobilPDS.nsf/26b7c4b33367a4a086256665004e4266/60d8a76e857b7e71852567b60072913a?OpenDocument" TARGET=_blank><font color="#ff1493">Mobil Delvac 1</A></font>, <A HREF="http://www.knfilters.com/" TARGET=_blank><font color=teal>K&N air filter</A></font>, <A HREF="http://www.spatechnique.com/instruments.html" TARGET=_blank><font color=purple>SPA DG-111</A></font> in <A HREF="http://www.zing.com/picture/pb6099d006b16dccf00d94d1c90034033/ff6e60cd.jpg" TARGET=_blank><font color="#9932cc">cubby hole</A></font>, <A HREF="http://www.pioneerelectronics.com/Pioneer/CDA/CarProducts/CarProductDetails/0,1429,517,00.html" TARGET=_blank><font color=green>Pioneer DEHP47-DH</A></font>

 

[QRTRHRS]

RobG,

Sorry about your problem but you helped me see something I had not thought about. I have post and pre turbo guages. Now I know I could loose one and still get my readings.

 

[RobG]

Thanks for everybody's help... I was able to find the fitting I needed at a local specialty shop. This time, I got a stainless steel one, instead of the regular steel one that was used with my other guage.

It took four hours, but the wires are run for the Boost/EGT and Oil/Oil guages, and everything under the hood is connected, tied back, and looks clean. Then I ran out of daylight, so I'll complete the inside work tomorrow.

I had to remove the dash bezel and the guage cluster (the cluster removal turned out to not be necessary) and spend a lot of time working the wires down through there. Then it took time enlarging my hole in the firewall to get the boost plug through.

What sucks is having to do it again when I get the third and final guage -- the Fuel Pressure/Oil Temp guage. Then I'll have three temp guages: Engine oil, Overdrive (US Gear) oil, and Rear End oil. Just about time to order up that Mag-Hytec diff cover.

Rob