Are my EGT's high?
03-06-2002, 04:19 PM
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Are my EGT's high?
my WOT temps are 1010 C, cruising temps is 840 C, and idle temps is 420 C....i have Fmax H22A4 with T3/T4B 0.63 Stage 3 and 0.48 H-3, respecitively, running mf2, VAFC, AVCR (0.55 kg/cm2), and BTM (0.5deg/psi)...EGT probe is on the 3rd runner and 0.75" from the head...my A/F's are 11.5:1 to 12.0:1 when boosting with the FJO wideband O2...do u guys think these temperatures are high?...any help would be greatly appreciated
03-06-2002, 04:43 PM
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Re: Are my EGT's high? (00SilverLS)
stock timing...15 deg BTDC with the BTM set at 0.5 deg/psi....on the newer prelude, u can't adjust the stock timing unless u use the BTM because the ecu resets it back, even if u adjust the distributor...do u think i should increase the BTM to 1.0 deg/psi
[Modified by Quaalude, 8:44 PM 3/6/2002]
[Modified by Quaalude, 8:44 PM 3/6/2002]
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03-06-2002, 06:07 PM
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Re: Are my EGT's high? (Quaalude)
get it down to 750c because you are gonna melt something. I get scared when the temp goes over 800c. 780~820c after a hard run is an ok temp. What ECU/Timing retard control are you using?
03-06-2002, 06:41 PM
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Re: Are my EGT's high? (drealgsr)
i am using the MSD BTM...i got the temps a little lower...940 C at WOT...i originally had the BTM set at 0.5 deg/psi for the 1010 C WOT...i tried 1.0 deg/psi and i got 1080 C...so then i set it to 0.3 deg/psi and i got 940 C...i might try lowering the BTM
03-06-2002, 06:51 PM
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Re: Are my EGT's high? (Quaalude)
Anything past 900C will probably start melting important things like exhaust valves...
I think you are taking too much timing out, and the mf2 sucks for fuel control.
I think you are taking too much timing out, and the mf2 sucks for fuel control.
03-06-2002, 07:02 PM
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Re: Are my EGT's high? (Quaalude)
Guys can you tell me what the conversion is from C to Farenheit? My EGT reads about 1100 F and close to 1250-1300 at WOT. Is that too high? What is normal?
03-06-2002, 07:17 PM
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Re: Are my EGT's high? (Quaalude)
BTM set to 0 deg/psi netted 910 C at WOT and car ran alot better...A/F were 11.8-12.2:1 on the FJO...thanks dustin 
03-06-2002, 07:23 PM
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Re: Are my EGT's high? (dustin)
3rd runner and 0.75" from head...half the diameter of the primary as TOO stated....i seen a post where markc said he had 930 C WOT with the 0.48 compressor housing
[Modified by Quaalude, 11:25 PM 3/6/2002]
[Modified by Quaalude, 11:33 PM 3/6/2002]
[Modified by Quaalude, 11:25 PM 3/6/2002]
[Modified by Quaalude, 11:33 PM 3/6/2002]
03-06-2002, 07:24 PM
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Re: Are my EGT's high? (Quaalude)
Hmm... you sure that all the fuel is not going to other cylinders? The MF2 fuel solution is wack (yo).
Check your plugs... I bet #3 has little silver specks on it And the rest are black ...
Check your plugs... I bet #3 has little silver specks on it
And the rest are black ...
03-06-2002, 07:28 PM
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Re: Are my EGT's high? (dustin)
yea, the mf2 sucks but i am low on the funds with all this **** i bought....i'll upgrade later to hondata or aem ems but the mf2 will have to do for now and i'll check the plugs after the engine cools a little...do u think it has anything to do with the small compressor housing?
03-07-2002, 12:29 AM
#23
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Re: Are my EGT's high? (Quaalude)
what do u think i can do to lower the egt's?
Im running my afc mod and my EGT never goes above 710-720C at WOT (at any boost) Crusing at highspeed sometimes it runs as high as 750C but never anymore. At say 60mph im running around 650-660C.
I would get a little scared with anything past 800C personally.
I have a greddy EGT gauge.
liam
03-07-2002, 06:27 AM
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Re: Are my EGT's high? (Quaalude)
[QUOTE]stock timing...15 deg BTDC with the BTM set at 0.5 deg/psi....on the newer prelude, u can't adjust the stock timing unless u use the BTM because the ecu resets it back, even if u adjust the distributor...do u think i should increase the BTM to 1.0 deg/psi
ground your knock sensor to the frame, then use your BTM. you have to remove the timing adjust from your distributor also. I think I did a long answer to this a couple months ago, take a look.
P.S. think yr creen name is great, reminds me of snacks I used to serve at my houseparties in the 80's, hard part was getting the toothpicks in the ludes.
[Modified by rtype11, 10:28 AM 3/7/2002]
ground your knock sensor to the frame, then use your BTM. you have to remove the timing adjust from your distributor also. I think I did a long answer to this a couple months ago, take a look.
P.S. think yr creen name is great, reminds me of snacks I used to serve at my houseparties in the 80's, hard part was getting the toothpicks in the ludes.
[Modified by rtype11, 10:28 AM 3/7/2002]