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Re: Engine Heat Issue
[Re: 6bblFLASH]
#2394753
10/29/17 12:59 PM
10/29/17 12:59 PM
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Joined: Dec 2007
Posts: 12,588
Great Neck,LI,new york
hemi-itis
I Live Here
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I Live Here
Joined: Dec 2007
Posts: 12,588
Great Neck,LI,new york
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Have you calculated your overall CR? I run pump 93 with 4 lbs of boost that gives me an effective CR under 12:1
HEMI-ITIS has no cure.
My condition is fully BLOWN!!
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Re: Engine Heat Issue
[Re: 6bblFLASH]
#2394800
10/29/17 01:50 PM
10/29/17 01:50 PM
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Joined: Jan 2005
Posts: 2,540
Milwaukee WI
TRENDZ
master
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master
Joined: Jan 2005
Posts: 2,540
Milwaukee WI
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The harsh reality is that the blower is just to small for your engine. You can slow it down to build less heat, but I’m guessing that you want the performance of a blown big block.
I agree that you could probably get away with a bit more if it was richer, but in the end you still are limited by compressor induced temps that the blower is inevitably going to make.
I agree with others about timing and heat also. Less timing while cruising will make a lot more heat. Combine that with a constant dose of heated intake air, and you end up with undesirable results.
The easiest way out would be switch to E85.
"use it 'till it breaks, replace as needed"
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Re: Engine Heat Issue
[Re: 6bblFLASH]
#2395217
10/30/17 08:16 AM
10/30/17 08:16 AM
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Joined: Jan 2003
Posts: 27,421
Balt. Md
383man
Too Many Posts
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Too Many Posts
Joined: Jan 2003
Posts: 27,421
Balt. Md
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I am wondering about if the winter blend gas is in the pumps?
It would definitely boil at lower temps.
It has been usually warm in Ohio.
Not sure how it would effect what my wideband sees.
Maybe its lean any way.
Even though I have fattened it up? I can tell you here in Md the winter blend will boil about 20 degrees sooner then the summer blend. I took my car out in late March and got 92 pump and when my eng hit about 185 idling in the drivethru line my fuel started to boil and the eng started to load up as it was pushing fuel out the bowl vents. I was very surprised as with the summer blend I have had it hit 195 at a long idle in traffic before I turned on my electric back-up fan and it had not boiled. And it is worse on very humid days also. Course I agree with the blower I would be thinking about better gas. Good luck with it , Ron
Last edited by 383man; 10/30/17 08:16 AM.
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Re: Engine Heat Issue
[Re: 383man]
#2398029
11/03/17 05:10 PM
11/03/17 05:10 PM
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Joined: Jan 2003
Posts: 3,831
N.E. Ohio
6bblFLASH
OP
master
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OP
master
Joined: Jan 2003
Posts: 3,831
N.E. Ohio
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I think it is all better now...........
Yes,winter blend was part of the problem.Likely why it toasted a piston at the track. It runs .5 leaner on winter blend and I was WAY too close to the edge as it was.
Put some 100% "pure-gas" in it{alcohol-free},made a big difference.
Also found the vacuum advance on the dist. was not doing its job. Found that it was not returning to the same base timing every time. So I might have 30* at home and 33* another time. Found it purely by chance.
I had noticed the throttle response was different at times,probably the timing variance.
So too lean and unknown timing bit me.
So next year I am going to put some race gas in it to base line track use tune-up then wean it onto pump-gas with meth/H20 injection.
So now have the dist. out of the Cuda` in it.
Idle and response is nice. Can`t get it over 180* so far.
Live and LEARN.............
Last edited by 6bblFLASH; 11/03/17 05:13 PM.
70` Cuda`,440 6BBL Jerico,Dana 4.56 Still on 93 Pump Gas
9.87 @ 136/1.31-60ft.`09 Mopar Nationals PASSON PERFORMANCE "Stick-Shift" Champ!
2013 StickShift Challenge Winner@ Mopar Nationals!
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