Matt Harwood Posted October 6, 2002 Share Posted October 6, 2002 Anyone? What's the highest normal readings, flat out for a high speed run? What figures do you get when generally cruising on motorways ets. 2000-3000 rpm? Quote Link to comment Share on other sites More sharing options...
Syed Shah Posted October 6, 2002 Share Posted October 6, 2002 I think this is largely dependant on where abouts the EGT probe is, so make note of this, when comparing figures. Quote Link to comment Share on other sites More sharing options...
Matt Harwood Posted October 6, 2002 Author Share Posted October 6, 2002 Damn good point, thanks Syed My probe was installed by Chris Wilson, directly after the exhaust port on no.1 cylinder. Quote Link to comment Share on other sites More sharing options...
Guest Martin F Posted October 7, 2002 Share Posted October 7, 2002 Exactly the same place as mine, also installed by CW. I tend to get about 650c when cruising on a motorway, if i remember rightly. I think the highest reading i have ever had is about 920c going up an incline in about 5th. Quote Link to comment Share on other sites More sharing options...
Guest Terry S Posted October 7, 2002 Share Posted October 7, 2002 Mine would hit 950 + before the change over on the turbos, but this was with hybrids. Would drop to 800 once the 2nd turbo was on line. Quote Link to comment Share on other sites More sharing options...
eyefi Posted October 7, 2002 Share Posted October 7, 2002 same place (cw install), slightly higher than martins. 940 absolute max peak, flat out, uphill, long run. Quote Link to comment Share on other sites More sharing options...
Ian C Posted October 7, 2002 Share Posted October 7, 2002 As an aside, what gauge/probe did people go for and how much (including CW fitting) did it cost? I want one and I never liked that analogue clock anyway... What's a bad level of EGT, by the way? -Ian Quote Link to comment Share on other sites More sharing options...
Guest Terry S Posted October 7, 2002 Share Posted October 7, 2002 Originally posted by Ian C As an aside, what gauge/probe did people go for and how much (including CW fitting) did it cost? I want one and I never liked that analogue clock anyway... What's a bad level of EGT, by the way? -Ian I had/have a GReddy one. 950+ is pushing it! Quote Link to comment Share on other sites More sharing options...
Guest Martin F Posted October 7, 2002 Share Posted October 7, 2002 Also Greddy Peak and Hold. Greddy gauges match the OEM clocks\gauges well. Quote Link to comment Share on other sites More sharing options...
GavinL Posted October 7, 2002 Share Posted October 7, 2002 Originally posted by Terry Saunders 950+ is pushing it! What about differences in ceramic vs Steel for EGT's? Quote Link to comment Share on other sites More sharing options...
Guest Terry S Posted October 7, 2002 Share Posted October 7, 2002 I doubt it makes any diiference. Quote Link to comment Share on other sites More sharing options...
Ian C Posted October 7, 2002 Share Posted October 7, 2002 What did the GReddy peak and hold gauge cost, then? And fitting? Come on, don't be shy. Terry, why did your hybrids hit that on one turbo, pre-transition?! What boost were you running off that first turbo? And it settled down once #2 was online, yes? How bad do you think it is for the engine to be blipping up to 950degF EGTs for, what, three seconds, maybe less? -Ian Quote Link to comment Share on other sites More sharing options...
Guest Martin F Posted October 7, 2002 Share Posted October 7, 2002 Can't remember individually, as i bought an EGT and Boost gauge at the same time. Cost me about £270 from Checkerflag in Japan. As for fitting, i had CW do the EGT probe, which i think cost me about £60 and the rest i did myself. Quote Link to comment Share on other sites More sharing options...
Guest Terry S Posted October 7, 2002 Share Posted October 7, 2002 Ian, I'll send you the e-mail address of the guy in the States I get my gauges from. Very cheap & he is flexible if you get my drift. I only assume that it was flow restriction on #1. I was running it at(#1) 0.9 bar. Once #2 was online it was fine(1.3bar). No visual damage when the engine was split. Not even any servere det marks on the pistons. I did manage to melt a GReddy probe though!!!! I think hybrids generate more heat. Just be more careful, with grade of fuel, hot days etc... Quote Link to comment Share on other sites More sharing options...
MONKEYmark Posted October 7, 2002 Share Posted October 7, 2002 Originally posted by Matt Harwood Damn good point, thanks Syed My probe was installed by Chris Wilson, directly after the exhaust port on no.1 cylinder. i have just been drag racing at york on sunday,i have my egt probe done in same place by chris w highest i had was 980 ooooops could not belive it. was using supra in manual mode and overdrive off normal driving is about 650 would water injection and fmic bring temps down by much,next time will take headlight out to try get engine cooler Quote Link to comment Share on other sites More sharing options...
Matt Harwood Posted October 7, 2002 Author Share Posted October 7, 2002 Ahh, thanks guys, I feel much better now. I thought mine was runningway to hot at WOT. I'm using the HKS gauge/probe. I'm getting around 650-750 at around 2-3000 rpm. and full throttle running 1.3 gives me a reading of 900-950. 1.2 peaks at 900 - The FMIC seems to start 'working' at around 50-70 mph. At roughly that speed the egt stops climbing, (and has even dropped a few degrees), for a few seconds, before continuing on it's way up... Before Leon played with my fuelling, I was peaking at 1000 and easily hit 950 within seconds of going to full throttle Detonation could easily be heard. Quote Link to comment Share on other sites More sharing options...
eyefi Posted October 7, 2002 Share Posted October 7, 2002 ive got written down (cant remember where from):- 580c - general pottering around 820c - a hard run 1060c - things have or r melting all numbers r approx. i can remember watching the video of 8th sin (from Ex Vi Termini website here is a pic ) on a dyno run. the exhaust manifold was glowing very bright, what sort of temps produce this effect and what sort of material could they b. does this happen on all our cars? Quote Link to comment Share on other sites More sharing options...
GavinL Posted October 7, 2002 Share Posted October 7, 2002 Originally posted by eyefi ive got written down (cant remember where from):- 580c - general pottering around 820c - a hard run 1060c - things have or r melting all numbers r approx. i can remember watching the video of 8th sin (from Ex Vi Termini website here is a pic ) on a dyno run. the exhaust manifold was glowing very bright, what sort of temps produce this effect and what sort of material could they b. does this happen on all our cars? What boost levels on those temps? Quote Link to comment Share on other sites More sharing options...
eyefi Posted October 7, 2002 Share Posted October 7, 2002 these rnt my numbers just a guide i picked up from somewhere, it doesnt matter what the boost is. cw told me to set the warning light on my egt to 950 deg c. Quote Link to comment Share on other sites More sharing options...
GavinL Posted October 7, 2002 Share Posted October 7, 2002 Originally posted by eyefi these rnt my numbers just a guide i picked up from somewhere, it doesnt matter what the boost is. cw told me to set the warning light on my egt to 950 deg c. whoops...I misunderstood! Quote Link to comment Share on other sites More sharing options...
Ian C Posted October 8, 2002 Share Posted October 8, 2002 Whuho - I'm running 0.9bar on #1 as well. Well, 0.85 roughly but it's a bleeder valve so it's never going to be mega consistent. I need that EGT thingy sharpish, thanks for the contact details Terry 950degrees is the accepted warning light value, then? Righto. Hey, I hear Nitrous cools the intake charge and cylinder temperatures, there's an excuse if you ever wanted one -Ian Quote Link to comment Share on other sites More sharing options...
Matt Harwood Posted October 8, 2002 Author Share Posted October 8, 2002 When I was talking to Leon, he said 925 was about the max. you'd want to be running. - According to NGK, anything over 850 is where detonation starts... http://www.ngk.co.uk/tips/preign.htm Gavin, you had some info a while back on some kind of knock warning gadget, do you still have it? Quote Link to comment Share on other sites More sharing options...
Guest Terry S Posted October 8, 2002 Share Posted October 8, 2002 NGK's figure is a general one. Engines vary in tolerance. As I said 950 was OK in mine, but I was edgy about it. Maybe try a decent octane booster, or water injection prior to Nitrous! I think Justin was seeing 1100 for a while but I also think his engine turned into a grenade! Quote Link to comment Share on other sites More sharing options...
Matt Harwood Posted October 8, 2002 Author Share Posted October 8, 2002 Originally posted by Terry Saunders I think Justin was seeing 1100 for a while but I also think his engine turned into a grenade! F*ck that! Thankfully, with Chris's de-cat pipes and restrictor plate and Leons fuel modifications, I've only hit 950 once - Full throttle for about 30 seconds, (just managed to exceed the legal speed limit;) ) - Mostly, it just edges over 900. It was the NGK thing that lead me to start this thread. I was wondering if I was the only one going over 850. - It's good to see other peoples readings. Quote Link to comment Share on other sites More sharing options...
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