06-02-2013, 01:06 AM | #226 |
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To add, the previous engine builder that I was using in L.A. said he had some very odd differences in EGT temps with a similar setup to yours Rich. Stock intake (extruded honed & some internal mods), big cam, big valve head, CEP 4:1 headers.
He said he couldn't figure out what was going on and tried (and charged me for) a great deal of R&D. At one stage he had the motor running in n/a mode. The EGT differences were only at low throttle openings though. Similar 100f+ differences you've seen. At one stage he tried to blame the headers but eventually when he and Dave 'discussed' this it was agreed that somehow the racehead and headers were overwhelming the stock-ish intake and exacerbating the inherent irregular flow in these. The work was never finished with that builder and the motor is back home with me. I am still waiting on a new intake and not sure what to use now. Thom seems to believe the LR one is a decent option yet many others believe it is a poor option. Not sure if my experience is of any use to you but perhaps you might want to contact Dave too. He was working on an alternative but it is being delayed.
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06-03-2013, 04:11 PM | #227 | ||
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Quote:
There is no way I could hold the post inter-cooler hard pipe after a WOT run. The EGT sensors are located a little more than an inch and a half from where the exhaust bolts to the head. I wonder how much cooling (if any) takes place from the exhaust valve to the cross over pipe? Quote:
Thanks y'all.
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06-05-2013, 10:54 PM | #228 |
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Keep us in the loop on all this please. Interested in your findings.
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06-15-2013, 02:26 PM | #229 | |
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Don't know if this helps but when sitting in traffic on a warm day my car oil temps will climb to 230.
I have the same rad as you. 3.0L with LR stage III head. Extrude honed intake, super 75 with T4 hotside and a very aggressive cam and LR stage 2 intercooler and 5 inch ceramic coated exhaust. I have 3 aftermarket fans setup on car. 1 Fan from broadfoot racing and 2 Derale tornado high output fans. My rad is ice cold when I see those temps. I think its a coolant flow problem at low rpm's. I have the kevlar timing belt which I wonder if it slips at low speeds???? I am also running a mafterburner setup right now. As soon as I start driving temps drop down low. Oil thermostat is a 190 and coolant thermostat is I think an 85. Chris White discovered an issue with thermostats not opening up properly due to poor design. He and I chatted on the phone about it. I never did get around to trying a different brand I just put in another one that I had lying around. It was better than the one I took out but still not quite right. Normal highway I am down around 160 for oil. My temp sender is in the drain plug...the LR drain plug setup. Try a different thermostat and see what happens...It's a pain to change but a cheap fix. Oh and I am running Evans coolant also. hope that helps, Jason Quote:
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