View Poll Results: do it
Do it, it's fun
31
72.09%
Do it but I don't think it'll be accurate
1
2.33%
Don't do it, it is a waste of your time
3
6.98%
Save your time and drink
4
9.30%
Just drive it
4
9.30%
Voters: 43. You may not vote on this poll
Trying to plan a crossfire experiment
Thread Starter
Le Mans Master
Joined: Aug 2017
Posts: 6,940
Likes: 1,490
From: New Jersey
I'm going to be honest, I messed with the acceleration enrichment. So it was going lean when you nailed it then the fueling was catching up causing the burbling... added basically a larger pump shot back (what was in it but should be way too much fuel) and all is good.
I gotta get this thing to a track, may take a quick little video of a quick rip later if I feel alright. Vertigo started acting up.
I gotta get this thing to a track, may take a quick little video of a quick rip later if I feel alright. Vertigo started acting up.
Thread Starter
Le Mans Master
Joined: Aug 2017
Posts: 6,940
Likes: 1,490
From: New Jersey
Tossed the keys to my friend, he did a 160 mile trip on the highway back home and to me. I asked him how it was. He just nodded and said "how is every gear passing passing gear. And not the car to drive that hungover." 
Thread Starter
Le Mans Master
Joined: Aug 2017
Posts: 6,940
Likes: 1,490
From: New Jersey
Since it's running pretty well I may reach out and have it dynoed now, using the same tables and such as it did prior so it's a more fair A/B just with the fueling corrected to what it wants. Then the difference is solely the intake characteristics.
Thread Starter
Le Mans Master
Joined: Aug 2017
Posts: 6,940
Likes: 1,490
From: New Jersey
So I had some time today for some very unscientific testing. But basically I pulled the best data log from the old intake and compared it to the data log from the current setup which isn't even it's best.
Data says:
13.7s vs 12.7s E.T.
96 vs 109 MPH trap
Now these are all calculated but my throttle tip in was about the same and looking at the data it's an impressive difference between the two from just simple data. Hopefully we get some guys at work and then I'll have a more normal schedule again.
Data says:
13.7s vs 12.7s E.T.
96 vs 109 MPH trap
Now these are all calculated but my throttle tip in was about the same and looking at the data it's an impressive difference between the two from just simple data. Hopefully we get some guys at work and then I'll have a more normal schedule again.
Corvette Stories
The Best of Corvette for Corvette Enthusiasts
How Much Horsepower Every Corvette Engine "LOST" in 1972
Joe Kucinski
Top 10 DOs and DON'Ts for Protecting Your Convertible Top!
Michael S. Palmer
Top 10 Most Explosive Corvettes Ever Made: Power-to-Weight Ratio Ranked!
Joe Kucinski
150 hp to 1,250 hp: Every Corvette Generation Compared by the Specs That Matter
Joe Kucinski
8 Coolest Corvette Pace Cars (and Replicas) of All Time
Verdad Gallardo
Top 10 Corvette Engines RANKED by Peak Torque (70+ Years of Muscle!)
Joe Kucinski
Corvette ZR1X Will Be Pacing the Indy 500, And Could Probably Race, Too!
Verdad Gallardo
Top 10 Corvettes Coming to Mecum Indy 2026!
Brett Foote
Top 10 C9 Corvette MUST-HAVES to Fix These C8 Generation Flaws!
Michael S. Palmer
Thread Starter
Le Mans Master
Joined: Aug 2017
Posts: 6,940
Likes: 1,490
From: New Jersey
Thread Starter
Le Mans Master
Joined: Aug 2017
Posts: 6,940
Likes: 1,490
From: New Jersey
I reached out to the shop the other night, they said from the day I'm ready its about 1-2 weeks for dyno availability. All I have to do now is fix the oil leak and all will be well. Hoping by the end of next week I'll have some numbers.
Thread Starter
Le Mans Master
Joined: Aug 2017
Posts: 6,940
Likes: 1,490
From: New Jersey
And yeah. We're down to 1 track I think. Maybe 2 still but no open test and tune during the week... only weekends and I don't want to deal with all the people.
Last edited by 84 4+3; Jun 29, 2022 at 07:13 PM.
Thread Starter
Le Mans Master
Joined: Aug 2017
Posts: 6,940
Likes: 1,490
From: New Jersey
Renegade continues to show its flaws... distributor base machining is off so it also leaks... I added a second gasket, checked pump engagement, measuring about .2000 inch with the second gasket so it should be okay. This is getting annoying.
Drifting
Joined: Jun 2018
Posts: 1,402
Likes: 287
From: Brisbane Australia
C4 of Year Finalist (performance mods) 2019
Hey Paul
Did you mention recently that you up-ed your accelerator enrichment numbers. I’ve had a couple of times recently where I’ve mashed the throttle and it’s had a big cough. (Very embracing). Anyway I think my car may need a bigger pump shot because if you feed it throttle it’s fine. It only happen on a really fast delta if that makes sense. Anyway interested to know where you ended up with this.
I’m also thinking about reactivating my decel cutoff even though I kind of like the obnoxious burble, crackle and pop it has now.
Did you mention recently that you up-ed your accelerator enrichment numbers. I’ve had a couple of times recently where I’ve mashed the throttle and it’s had a big cough. (Very embracing). Anyway I think my car may need a bigger pump shot because if you feed it throttle it’s fine. It only happen on a really fast delta if that makes sense. Anyway interested to know where you ended up with this.
I’m also thinking about reactivating my decel cutoff even though I kind of like the obnoxious burble, crackle and pop it has now.
Thread Starter
Le Mans Master
Joined: Aug 2017
Posts: 6,940
Likes: 1,490
From: New Jersey
Hey Paul
Did you mention recently that you up-ed your accelerator enrichment numbers. I’ve had a couple of times recently where I’ve mashed the throttle and it’s had a big cough. (Very embracing). Anyway I think my car may need a bigger pump shot because if you feed it throttle it’s fine. It only happen on a really fast delta if that makes sense. Anyway interested to know where you ended up with this.
I’m also thinking about reactivating my decel cutoff even though I kind of like the obnoxious burble, crackle and pop it has now.
Did you mention recently that you up-ed your accelerator enrichment numbers. I’ve had a couple of times recently where I’ve mashed the throttle and it’s had a big cough. (Very embracing). Anyway I think my car may need a bigger pump shot because if you feed it throttle it’s fine. It only happen on a really fast delta if that makes sense. Anyway interested to know where you ended up with this.
I’m also thinking about reactivating my decel cutoff even though I kind of like the obnoxious burble, crackle and pop it has now.
Drifting
Joined: Jun 2018
Posts: 1,402
Likes: 287
From: Brisbane Australia
C4 of Year Finalist (performance mods) 2019
Greg, I get an occasional buck or cough when i get back in it on a gear change sometimes. Otherwise it feels pretty stout... if you'd like i can email you my bin so you can take a look at my current numbers? They are roughly the same as the stock calibration Tom came up with to preload onto the EBL he sells. It needs tweaking i just don't have the time to do all that fine tuning... I don't understand it enough. If it was a carb I'd probably just swap out the pump cam to fix it. Seems like it needs to hit just a little sooner on my shift.
that sounds like a plan. I’ll email you my current bin as well. I recently leaned it out down low and fattened it up up high. I did that because I noticed that the INT was maxed out and not really changing fuel delivery in closed loop. It seams to regulate properly now.
Thread Starter
Le Mans Master
Joined: Aug 2017
Posts: 6,940
Likes: 1,490
From: New Jersey
Thanks Paul
that sounds like a plan. I’ll email you my current bin as well. I recently leaned it out down low and fattened it up up high. I did that because I noticed that the INT was maxed out and not really changing fuel delivery in closed loop. It seams to regulate properly now.
that sounds like a plan. I’ll email you my current bin as well. I recently leaned it out down low and fattened it up up high. I did that because I noticed that the INT was maxed out and not really changing fuel delivery in closed loop. It seams to regulate properly now.