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Re: egt's pre/post turbo
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I think they make a clamp on setup for the down pipe as one option.
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Yes, ISSPRO makes clamp-on thermocouples (R650A-HT is a popular one).
As far as drilling and tapping downpipes, I can't speak for factory 6.0L pipes, but I can confirm that I was able to do it on the Tymar downpipe on my OBS. I recently installed a post-turbo thermocouple and gauge. So far it appears to work as I expected. When temps are going up, it lags the pre-turbo by as much as 400 degrees. When running steady-state, it tends to slowly approach the pre-turbo readings (but never getting quite as hot when the temperatures are high). When cooling down rapidly (like driving downhill after cresting a hill) the post-turbo is hotter by 150-200 degrees. I would be interested to hear anyone else's data, to see if the truck type and set-up has much influence on these readings.
Thanks,
Michael Pliska
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ISSPRO Engineering Manager
1995 F350 PSD Crew Cab Dually, 255k miles (Ford rebuilt E4OD at 226k)
ISSPRO Prototype Performax gauges, Tymar Intake, Gutted EBPV, Tymar 3x4" downpipe, Tymar 5" exhaust, Cat's hiding in the shed, Edge Evolution on "Tow", Tricumulator springs and Accumulator Valve, Tru-Cool 4590 Trans Cooler, Lock-Right Locker
1998 S&S 9.5' slide-in camper
33' enclosed tag trailer with 2 doorslammer drag cars (73 Vega Super-Gas & 74 Vega ET Super-Pro)
1992 GMC Typhoon, 1973 Chevy Blazer with Pontiac 400, 1973 Trans-Am 455
NRA member and certified firearms instructor
GOA member
IDPA member
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