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Pontiac - Boost Turbo, supercharged, Nitrous, EFI & other Power Adders discussed here. |
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#21
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Charlie, have you you run the engine to see if it made any difference to your hot restart issue? And good work on finding the leaks
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'65 Tempest 467 3650# 11.30@120.31 |
#22
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Not yet Scott. Ill be doing that in a couple of hours. I wanted everything to dry before i did. And thanks. Im hoping that with all these findings some good will come from it. Seems like everytime i find something an think its going to matter it just dosen't But i think im running out of things to find.lol. So maybe thats a good thing ... haha
One thing that happened is, when i put the throttle body back together i had to recalirate the TPS.. But i couldnt figure out the way i did it initially so i set it on auto.. Have to do my home work on this i guess..
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My Half AN Injun..... |
#23
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I did the leak test this morning and now those 3 joints are at 100% leak free. I hope this permatex holds now. But so far i fixed 5 intake leaks which 2 were really bad. And 4 exhaust leaks. Just waiting for the test . Im kinda scard to try it at this point. Feels good to feel like i got it now. This ride could be just another let down...
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My Half AN Injun..... |
#24
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Charlie, section 6.5.1 on page 35 of the manual covers the manual entry tps calibration.
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'65 Tempest 467 3650# 11.30@120.31 |
#25
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Thanks Scott..
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My Half AN Injun..... |
#26
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Any updates Charlie?
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'65 Tempest 467 3650# 11.30@120.31 |
#27
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Hey Scott,
Lol Just problem after problem haha I fixed as much as i can find. Theres something off . I just cant figure it out. I did find something wrong with the BOV . Should have the new diaphragm tomorrow. Still have that dead spot when peddling the car. Its so annoying.. Other then that the car runs like an ape. Did find out that this time around ( meaning this new build) theres 20more psi of cranking pressure. I guess the runners being smaller picked the air speed up allowing more air to enter the chamber? Idk. But i used to have 170 now its 190 . I guess thats explains why it feels faster per pound of boost.
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My Half AN Injun..... Last edited by charlie66; 07-09-2020 at 07:30 AM. |
#28
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Can you get a datalog of the dead spot? Maybe you can share that where you can get more eyes on it. There's some folks here that have experience with turbos(not me) that I bet would be able to help.
Edited to add: After you get the BOV right. That sounds like a likely candidate to cause an issue in a pedal situation.
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'65 Tempest 467 3650# 11.30@120.31 |
#29
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I'd check out the fuel side of it?
Could be getting too lean and can't recover fast enough? Injectors bad? Not an EFI guy but possibly the programming isn't reacting fast enough to inject fuel when needed? (after the pedaling then hammering it)
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John Wallace - johnta1 Pontiac Power RULES !!! www.wallaceracing.com Winner of Top Class at Pontiac Nationals, 2004 Cordova Winner of Quick 16 At Ames 2004 Pontiac Tripower Nats KRE's MR-1 - 1st 5 second Pontiac block ever! "Every man has a right to his own opinion, but no man has a right to be wrong in his facts." "People demand freedom of speech to make up for the freedom of thought which they avoid." – Socrates |
#30
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Quote:
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My Half AN Injun..... |
#31
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Im running very rich before the peddle at 0.072 Lambda (my target is 0.080) On the drop (meaning off the throttle it goes 0.068 and coming back into the throttle im richer going as low as 0.063 for 1 frame then leveling out to 0.071 in 1.80 seconds. So thats real rich. 0.70 on the AF scale is 10.29. lol I went out yesterday to try an clean that up but had other issues . The heater core decided to spew hot water all over my feet. So im fixing this today and hopefully ill be back on track to lean this thing out to my target later on ..
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My Half AN Injun..... |
#32
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You mean 0.72 Lambda? 1.00 is stochastic. Point zero xx is very, very rich.
Possibly injectors leaking fuel? That long of a delay suggests to me something is wrong somewhere. (not necessarily the turbo piping)
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John Wallace - johnta1 Pontiac Power RULES !!! www.wallaceracing.com Winner of Top Class at Pontiac Nationals, 2004 Cordova Winner of Quick 16 At Ames 2004 Pontiac Tripower Nats KRE's MR-1 - 1st 5 second Pontiac block ever! "Every man has a right to his own opinion, but no man has a right to be wrong in his facts." "People demand freedom of speech to make up for the freedom of thought which they avoid." – Socrates |
#33
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Quote:
Yeah i found that out. But i did find a bunch of leaks on hot and cold sides . Im happy about that. Injectors were checked. Guy said they flowed better then what they are..
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My Half AN Injun..... |
#34
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Hey john, how do you post those little emojis? I could never figure that out..
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My Half AN Injun..... |
#35
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Charlie, I can offer some general advice. You likely have 3 different areas of the fueling to adjust. The one where you're in the throttle will be a different load area than where you're out of it, and the momentary really rich area is acceleration enrichment. Don't give too much credibility to the AE, until the other 2 areas are where you decide you like them. Ive found it helpful to make back to back tests in a specific range, moving the fueling 2-3 percent to help establish an approximate ratio of how the increase/decrease translates to afr, or in your case lambda.
As for the fueling response time deal, it works in milliseconds, as long as the rail is pressurized properly thats a non factor.
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'65 Tempest 467 3650# 11.30@120.31 |
#36
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Well, from my understanding the Target fuel table is the most important table. That one needs to be good. Then you make the adjustments in the VE table . There is a enrichment area not to familiar with that though..
Just so you know, this is a new problem. It has never been this way before. I got this fuel injection back in 2012. So i feel something has happen but dont know what..
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My Half AN Injun..... |
#37
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Quote:
stochastic ???? Stoichiometric Ratio The stoichiometric ratio is the exact ratio between air and flammable gas or vapor at which complete combustion takes place. Tom V.
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"Engineers do stuff for reasons" Tom Vaught Despite small distractions, there are those who will go Forward, Learning, Sharing Knowledge, Doing what they can to help others move forward. |
#38
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Quote:
Quote:
I use the Post Reply and not the Quick Reply. To the right of the reply area is a panel of icons. Many to pick from.
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John Wallace - johnta1 Pontiac Power RULES !!! www.wallaceracing.com Winner of Top Class at Pontiac Nationals, 2004 Cordova Winner of Quick 16 At Ames 2004 Pontiac Tripower Nats KRE's MR-1 - 1st 5 second Pontiac block ever! "Every man has a right to his own opinion, but no man has a right to be wrong in his facts." "People demand freedom of speech to make up for the freedom of thought which they avoid." – Socrates Last edited by johnta1; 07-09-2020 at 03:12 PM. |
#39
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I can live with that explanation Hope southern life is agreeing with you, John.
TV
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"Engineers do stuff for reasons" Tom Vaught Despite small distractions, there are those who will go Forward, Learning, Sharing Knowledge, Doing what they can to help others move forward. |
#40
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Quote:
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