EGT temps? In Farenheit (sp)
09-21-2001, 01:42 PM
#1
EGT temps? In Farenheit (sp)
Hey guys what is the EGT's in F that I should be seeing, what is too rich and what is too lean, I am more worried about being lean of course. Does anyone know what is a sweet point to be at under full boost for both power and safe EGT's? Thanks
09-21-2001, 07:20 PM
#2
Moderator running more PSI than all the boosted Maximas... combined
iTrader: (5)
Join Date: Aug 2000
Posts: 6,345
No way to really tell unless you cross reference it with an wideband O2 dyno. I did that on my car and found out it's at 1400F WOT. I guess 1420F I would be running lean.
09-22-2001, 09:17 AM
#4
While running the nitrous I would see ~805c (~1481f) just as I crossed the 1/4 mile mark.
With the SC the highest I have seen is ~780c (~1436f) while driving on the interstate and pushing it a bit.
With the SC the highest I have seen is ~780c (~1436f) while driving on the interstate and pushing it a bit.
09-22-2001, 09:25 AM
#5
Originally posted by MardiGrasMax
While running the nitrous I would see ~805c (~1481f) just as I crossed the 1/4 mile mark.
With the SC the highest I have seen is ~780c (~1436f) while driving on the interstate and pushing it a bit.
While running the nitrous I would see ~805c (~1481f) just as I crossed the 1/4 mile mark.
With the SC the highest I have seen is ~780c (~1436f) while driving on the interstate and pushing it a bit.
Woohooo I am getting more replies,
Thanks guys for your imput, now how do we particularly know when we are running a little too lean? Other than hearing detonation? I was running at about 13.5:1 ratio (A/F) on my dyno, and a tech told me that I was kinda lean, at that time I was running about 1400, so I changed my FMU disc and placed a larger disc and now I am about 1100-1200 on heavy load? So now I am a little confused?
09-22-2001, 09:31 AM
#6
Originally posted by The New CLIMAX
Woohooo I am getting more replies,
Thanks guys for your imput, now how do we particularly know when we are running a little too lean? Other than hearing detonation? I was running at about 13.5:1 ratio (A/F) on my dyno, and a tech told me that I was kinda lean, at that time I was running about 1400, so I changed my FMU disc and placed a larger disc and now I am about 1100-1200 on heavy load? So now I am a little confused?
Woohooo I am getting more replies,
Thanks guys for your imput, now how do we particularly know when we are running a little too lean? Other than hearing detonation? I was running at about 13.5:1 ratio (A/F) on my dyno, and a tech told me that I was kinda lean, at that time I was running about 1400, so I changed my FMU disc and placed a larger disc and now I am about 1100-1200 on heavy load? So now I am a little confused?
13.5 is a bit lean, I was running ~12.6:1 with the nitrous wich is nice and safe.
05-29-2002, 11:21 PM
#7
Originally posted by MardiGrasMax
Lower EGTs are usually richer. You went to an 8:1 FMU disc from the 6:1, right? I think 7:1 is a better choice but Vortech dosent make one. You can get a boost bleader valve for the fmu to help lower the fuel pressure a bit or buy a fully adjustable FMU like Vortechs "Super FMU" and fine tune the ratios. Ask Loren about this.
13.5 is a bit lean, I was running ~12.6:1 with the nitrous wich is nice and safe.
Lower EGTs are usually richer. You went to an 8:1 FMU disc from the 6:1, right? I think 7:1 is a better choice but Vortech dosent make one. You can get a boost bleader valve for the fmu to help lower the fuel pressure a bit or buy a fully adjustable FMU like Vortechs "Super FMU" and fine tune the ratios. Ask Loren about this.
13.5 is a bit lean, I was running ~12.6:1 with the nitrous wich is nice and safe.
I just bought Loren's S/C....
It has a Cartech FMU. Stupid Question - How do I adjust it?
IanS
05-30-2002, 06:40 AM
#9
Originally posted by iansw
I know this is a REALLY old thread, but why not bring it back because it has some good info in it...
I just bought Loren's S/C....
It has a Cartech FMU. Stupid Question - How do I adjust it?
IanS
I know this is a REALLY old thread, but why not bring it back because it has some good info in it...
I just bought Loren's S/C....
It has a Cartech FMU. Stupid Question - How do I adjust it?
IanS
I was planning on getting the Cartech "adjustable" (hint hint Matt
)FMU yesterday, but the shop wasn't open. It's WAY cheaper than the Vortech Super FMU.
05-30-2002, 06:55 AM
#10
Senior Member
Join Date: Dec 2001
Posts: 2,084
Is this thread referring to N2O or S/C? How does the placement of the temp probe play a role in the readings? (i.e. further back than the front bank of cyl.) I have mine right where both banks come together towards the end of the Y (warpspeed). I am in the process of adjusting the FP to lean it out a bit since I'm only hitting 1000F when under boost. Is there any other way to tweak it out w/o having to try all kind of diff jets? Shops around here only sell jets in packs of like 5-6 and they rarely have the exact one you're looking for (they have to order them they say).
05-30-2002, 07:56 AM
#11
Originally posted by Y2KevSE
There's a base fuel pressure adjuster and a flow rate adjuster (big thing in the middle is base and the tiny **** next to it is the flow rate). As Matt said, don't play with anything until you get on the dyno.
I was planning on getting the Cartech "adjustable" (hint hint Matt )FMU yesterday, but the shop wasn't open. It's WAY cheaper than the Vortech Super FMU.
There's a base fuel pressure adjuster and a flow rate adjuster (big thing in the middle is base and the tiny **** next to it is the flow rate). As Matt said, don't play with anything until you get on the dyno.
I was planning on getting the Cartech "adjustable" (hint hint Matt
)FMU yesterday, but the shop wasn't open. It's WAY cheaper than the Vortech Super FMU.
Is their a 2.62" pulley in the mail to you also?
05-30-2002, 08:11 AM
#12
Originally posted by MardiGrasMax
Is their a 2.62" pulley in the mail to you also?
Is their a 2.62" pulley in the mail to you also?
Would you like the 2.87" if I do decide to go with a 2.62"?
05-30-2002, 09:28 AM
#16
Originally posted by Y2KevSE
Hehehehehe
What shot are you going to be using?
HeheheheheWhat shot are you going to be using?
05-30-2002, 09:50 AM
#17
Originally posted by MardiGrasMax
Dunno? I figure I should get ~20whp out of the 2.62 add that to my previous boost only dyno of 318@6300rpm and I'm at ~338whp. So I'll need another 20hp to get up to where I was before with nitrous. I was running a 40hp shot, so I'll start with a 20 and see how it looks. We know the motor can take 377whp because that was what my actual uncorrected numbers were. Dare I say 400whp?
Dunno? I figure I should get ~20whp out of the 2.62 add that to my previous boost only dyno of 318@6300rpm and I'm at ~338whp. So I'll need another 20hp to get up to where I was before with nitrous. I was running a 40hp shot, so I'll start with a 20 and see how it looks. We know the motor can take 377whp because that was what my actual uncorrected numbers were. Dare I say 400whp?
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