terribleturner Posted January 5, 2007 Share Posted January 5, 2007 It's been asked before, hell i've probably even asked it. Gauges for a (non water cooled turbo) single. Now i could always get the spal dual ones but not keen on the look. So i have Boost and AFR gauges, and i have space for 2 more. The ones installed that im replacing are EGT and Oil Temp. Now i like the Oil Temp because i know when i can start to push the engine and when it's been pushed too much. I also like the EGT but some on here say if you have an AFR you don't really need the EGT, so that can go guess. I quite fancy an Oil Pressure gauge as twice last year i had problems which wouldn't have been if i had a pressure gauge on hand. And the last one is Water Temp, now i've never had it so wont really miss it, but with oil temp/press and the fact i want to be doing a few track days next year is it something i should consider??? So let me sumarise.... I have... AFR Boost I must choose 2 from... Oil Temp Oil Press EGT Water Temp Quote Link to comment Share on other sites More sharing options...
CJ Posted January 5, 2007 Share Posted January 5, 2007 I would go for fuel pressure and oil pressure Quote Link to comment Share on other sites More sharing options...
terribleturner Posted January 5, 2007 Author Share Posted January 5, 2007 Why fuel pressure over the others Col? Quote Link to comment Share on other sites More sharing options...
CJ Posted January 5, 2007 Share Posted January 5, 2007 Why fuel pressure over the others Col? Well, whilst the stock water temp gauge isn't brilliant, it is there so I would discount that as you are otherwise just duplicating. Due to such variances in EGT readings (dependant on the fitting point), I am not too sure just how much use that would be on a day to day basis (plus I was never sure exactly what to do if they went high ). I always felt that as the fuel pressure was such an important part of the car running correctly (and safely) then that was one I would have defo gone for. Surprisingly, Dude thought so too Quote Link to comment Share on other sites More sharing options...
Homer Posted January 5, 2007 Share Posted January 5, 2007 I'd go for Oil temp for the reason already stated, then oil pressure. I don't see the point in a fuel pressure gauge, they measure the pressure of the fuel thats NOT used by the engine. Its only relevant when the engine's off and the pumps running. Quote Link to comment Share on other sites More sharing options...
CJ Posted January 5, 2007 Share Posted January 5, 2007 I'd go for Oil temp for the reason already stated, then oil pressure. I don't see the point in a fuel pressure gauge, they measure the pressure of the fuel thats NOT used by the engine. Its only relevant when the engine's off and the pumps running. I am a little confused by that. I used mine to check that the rate of pressure was rising at the same(ish) rate of boost. Are you saying that isn't the case? Quote Link to comment Share on other sites More sharing options...
Homer Posted January 5, 2007 Share Posted January 5, 2007 I am a little confused by that. I used mine to check that the rate of pressure was rising at the same(ish) rate of boost. Are you saying that isn't the case? I always thought fuel pressure on the return dropped on boost as more fuel was used. Guess i'm wrong then! Quote Link to comment Share on other sites More sharing options...
Lebsteif Posted January 5, 2007 Share Posted January 5, 2007 Oiltemp! god to know when you can hit the gas! Quote Link to comment Share on other sites More sharing options...
CJ Posted January 5, 2007 Share Posted January 5, 2007 My Defi fuel pressure gauge definitely increased in pressure as to the rate of boost. I remember that, as I once had a problem with the FPR and the rate wasn't rising with the boost pressure. Quote Link to comment Share on other sites More sharing options...
Gamer Posted January 5, 2007 Share Posted January 5, 2007 My Defi fuel pressure gauge definitely increased in pressure as to the rate of boost. I remember that, as I once had a problem with the FPR and the rate wasn't rising with the boost pressure. I can confirm that it does Quote Link to comment Share on other sites More sharing options...
Gamer Posted January 5, 2007 Share Posted January 5, 2007 I would choose the following out of your selections James Oil Press EGT Quote Link to comment Share on other sites More sharing options...
Homer Posted January 5, 2007 Share Posted January 5, 2007 Had a little think about this, yeah you're right. I'll go back to my under my rock now Quote Link to comment Share on other sites More sharing options...
CJ Posted January 5, 2007 Share Posted January 5, 2007 Had a little think about this, yeah you're right. I'll go back to my under my rock now Beginners luck from me eh? Quote Link to comment Share on other sites More sharing options...
terribleturner Posted January 5, 2007 Author Share Posted January 5, 2007 That's whaat i wanted, a debate So Joe, why the EGT?? I've always read on here if you already have a AFR gauge you don't really need the EGT. Quote Link to comment Share on other sites More sharing options...
Gamer Posted January 5, 2007 Share Posted January 5, 2007 That's whaat i wanted, a debate So Joe, why the EGT?? I've always read on here if you already have a AFR gauge you don't really need the EGT. My AFR's were fine (slightly lean at times but within reason) before Dan remapped my car. EGT's were quite high though.. 950c and rising steadily, if I did not have my gauge I would have never known and would have most likely started cooking bits. Quote Link to comment Share on other sites More sharing options...
JamieP Posted January 5, 2007 Share Posted January 5, 2007 I also would keep the egt gauge. Quote Link to comment Share on other sites More sharing options...
Soonto_HAS_soop Posted January 5, 2007 Share Posted January 5, 2007 An AFR gauge shows the distribution over all 6 cylinders, so one may be compensating for the others, or the change may not be noticeable in the single value shown by the AFR. I think it was Mr Wilson that was looking, if not found, for a way to measure all 6 runners EGT values. As for saying what gauges I would have, it would have to be keep the EGT and Oil Pressure. I have in mine: Boost gauge x 3 (T Timer has one and E-01) EGT AFR Water Temp Fuel Pressure Oil Temp All with individual warning lights AND peak recall. Quote Link to comment Share on other sites More sharing options...
SupraStar 3000 Posted January 5, 2007 Share Posted January 5, 2007 I'd go for a compass and clock. ..but I drive a NA supra Oil temp and EGT for me too Quote Link to comment Share on other sites More sharing options...
Gamer Posted January 5, 2007 Share Posted January 5, 2007 I have in mine: Boost gauge x 3 (T Timer has one and E-01) EGT AFR Water Temp Fuel Pressure Oil Temp All with individual warning lights AND peak recall. I also have Boost x 3 (Defi/Blitz turbo timer/SBS I colour) EGT AFR Oil pressure Fuel pressure Volts Water temp (not connected, using the stock gauge at the moment) Most of mine are also able to record peak and have user configured warning lights/sounds Quote Link to comment Share on other sites More sharing options...
JamieP Posted January 5, 2007 Share Posted January 5, 2007 I have Boost Egt Afr oil temp oil press Quote Link to comment Share on other sites More sharing options...
Soonto_HAS_soop Posted January 5, 2007 Share Posted January 5, 2007 I have a voltage thing as well, but it is built into the SPA digital gauge to say that I have a problem. As a side note, I know that some people say that the best runner for an EGT is No.6 due to being the rear most cylinder, but has anyone considered the fact that the exhaust ports on cylinder 2 and 5 are smaller than the rest? It was this thought that made me put my EGT into runner 5 on tubular manifold. Quote Link to comment Share on other sites More sharing options...
Gamer Posted January 5, 2007 Share Posted January 5, 2007 I have a voltage thing as well, but it is built into the SPA digital gauge to say that I have a problem. As a side note, I know that some people say that the best runner for an EGT is No.6 due to being the rear most cylinder, but has anyone considered the fact that the exhaust ports on cylinder 2 and 5 are smaller than the rest? It was this thought that made me put my EGT into runner 5 on tubular manifold. My probe is mounted in the manifold collector. Quote Link to comment Share on other sites More sharing options...
JamieP Posted January 5, 2007 Share Posted January 5, 2007 My probe is in the turbo. Quote Link to comment Share on other sites More sharing options...
TrickTT Posted January 6, 2007 Share Posted January 6, 2007 I've got boost AFR EGT in the No1 header and i've just ordered an oil pressure gauge. If you've still got the stock liquid cooled oil cooler in place an oil temp gauge is not that critical, because its closely linked to the water temp. Quote Link to comment Share on other sites More sharing options...
terribleturner Posted January 6, 2007 Author Share Posted January 6, 2007 Good replies but some are you are missing the question Beacuse i don't want the car looking too much like the starship enterprise im just putting in 2 extra gauges along side my Boost and AFR. Sssssooooo I must choose 2 from... Oil Temp Oil Press EGT Water Temp And with your answers why you think they are more important than the others. Quote Link to comment Share on other sites More sharing options...
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