if its possible for turbo manifolds to be nickel plated can i assume its also possible to plate them in chrome? both metals, but im not sure about the heat factor. bill, can you shed some light on this? what temps are expected on the manifold? EGT temps of <1700? what temperature can chrome hold up to? thanks ps-which EGT did you guys get? the cheap ones are less than $50 but the price reflects in the gauges appearance. the autometers (good looking ones) are $124 plus the probe which is like $80. is this gauge gonna be necessary for me running 7 or less psi? (already got the A/F and will have a boost gauge obviously) does the A/F gauge need to be modified by gadgetseller for use on turbo motors, because i read somewhere that it must be altered to work under boost? http://www.geocities.com/blue2gnt blue2gnt@hotmail.com AOL IM - ThreeRedDiamonds
#2384, "RE: Attention HRC - Chrome Exhaust Manifold" In response to Reply # 0
AS far as the manifolds go, i can't help you, but i can answer some of your A/F gauge questions.
They do not need to be modified for boosted applications. All they really do is give you a reading on your o2 sensor voltages, which fluctuate with ECU fuel trim as well as the richness/leaness of your WOT air/fuel mixture. When gadgetseller modifies your a/f gauge, it simply gets re-calibrated to read the upper range (.82 - .99v) of the o2 sensor's output, mainly for WOT tuning (It is totally useless once modified for partial-throttle tuning). If you buy the Jumptronix a/f gauge from RRE, it gives you a backlit digital readout of the exact voltage, rather than a blinky-light display in .1v increments. It's what i have, and i like it.
I also have the AutoMeter ultralight EGT gauge /w probe. It came all in one piece, and cost me about $130. It's a nice looking gauge with fairly fast and accurate responce. I got it from RRE, and have it tapped into the #4 runner on my Star manifold.
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'95 Eclipse TurboGS (garage deco) '95 TSi AWD (restoring a survivor) '97 Talon ESi-T (poor impulse control) '99 Eclipse RS-T (daily beater) '13 Evo X (mostly stock) '17 Sienna (Middle Aged Dad Mobile)
#2385, "RE: Attention HRC - Chrome Exhaust Manifold" In response to Reply # 1
Chrome plating is not the best bet, as it will discolor dramatically from the heat of the manifold. I prefer ceramic-metallic coatings, such as those from Jet-Hot and HPC. Many local companies now also have this technology. It will not discolor, and also forms a useful heat barrier to help with underhood temps.
Bill Hahn Jr. 98 RS Turbo: 10.87 @ 136 MPH HRC Stage V with N20 Nation's Fastest Street FWD 2G DSM www.turbosystem.com
#2386, "RE: Attention HRC - Chrome Exhaust Manifold" In response to Reply # 0
Using Old-School DSMing techniques I went with the Autometer EGT gauge and the fast-reacting Westach EGT probe. As far as most DSMers are concerned its the best combo/price.
Autometer 2-1/16" Ultra-Lite Single Channel Exhaust Gas Temperature Gauge (0°-1600°F) Part Number: 4365
Westach EGT Sender (Clamp Type) 48" Type K Thermocouple 2.5 Ohms Res., 0°-2100°F, 32.9mV @ 1500°F Part Number: 712-2DWK
#2387, "RE: Attention HRC - Chrome Exhaust Manifold" In response to Reply # 3
Personally I find all the beauty I could ever ask for in the big ass (well medium size) turbo perched high in the engine bay. You show guys dont leave any stones unturned. I guess thats what it takes.
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