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08-21-2005, 02:37 PM
#11
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Originally Posted by moregrip
thats what I was thinking. Funny thing about the twin screw design, as good as it is, it's most inefficient when not under boost, or, any non boost condition, like idling, so it makes sense to me that sitting there idling it is heating up and becoming less efficient up until some point that enough boost is being generated to overcome this conditon, or as you say 3,000 rpm.
Of course that may not be the whole story, i.e. tuning and whatnot, just thought I'd offer that to you.
Of course that may not be the whole story, i.e. tuning and whatnot, just thought I'd offer that to you.
08-23-2005, 09:05 PM
#17
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Hey Pat, just took a look at your logs. I see a few things going on.
Your ltrim is way off, but I think it's a scanning tool issue. Bank1 is at -2 to -6, which is acceptable, but Bank2 always stays at -100, which is odd. I've seen this before and will call you tomorrow to discuss the details.
Also, something I noticed, the iat's are at 165deg during idle and slow cruising, that's kind of hot!
Something else, the first wot run you did, the iat's jumped to 172deg then 199deg, then you slowed down for a while and they went back to 167deg. The next time you went wot, they went to 212degs, ouch, that's kind of hot too.
I didn't see any KR because I pull timing timing when iat's get that hot, but that is some of your power loss, the high iat's.
The 02's look fine at wot as well.
We need to cool those intake temps down.
talk to you soon,
allen
Your ltrim is way off, but I think it's a scanning tool issue. Bank1 is at -2 to -6, which is acceptable, but Bank2 always stays at -100, which is odd. I've seen this before and will call you tomorrow to discuss the details.
Also, something I noticed, the iat's are at 165deg during idle and slow cruising, that's kind of hot!
Something else, the first wot run you did, the iat's jumped to 172deg then 199deg, then you slowed down for a while and they went back to 167deg. The next time you went wot, they went to 212degs, ouch, that's kind of hot too.
I didn't see any KR because I pull timing timing when iat's get that hot, but that is some of your power loss, the high iat's.
The 02's look fine at wot as well.
We need to cool those intake temps down.
talk to you soon,
allen
08-23-2005, 10:02 PM
#18
Yes I know, I found that wierd. I have done some other monitoring of my IAT's and have never seen them above 185 even in 95degree weather. Normally at cruise they are at 135-145 in those temps. I know tonite at cruise they were 95degrees but the outside temp was 66. At WO tonite they got up too 145ish. These temps sound hot too me for only 6.5lbs boost? However it did run a hell of a lot better this eve. As for the LTFT's on a interceptor guage I have been seeing -17 on bank 2 and on bank 1 they are what you mentioned. I dont know
08-24-2005, 09:42 AM
#20
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They've had that "Coming Soon -- Intercooler!" thing posted up for almost a year now. I finally ordered an injection kit from Snow Performance. I haven't had any problems with the ltrims, but the heat here in Austin just kills my performance.