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Forum: Forced Induction Discussions 12-07-2024, 05:38 PM
Replies: 135
Views: 34,374
Posted By cjperformance
That seems like a reasonable estimate. My...

That seems like a reasonable estimate. My uneducated guess is about 5% to 20% parasitic loss, but it depends a lot on the setup... PD vs centri.... supercharger drive ratio, etc. Id say a good...
Forum: Forced Induction Discussions 12-06-2024, 05:51 PM
Replies: 135
Views: 34,374
Posted By cjperformance
Forced induction setups usually run richer, and...

Forced induction setups usually run richer, and to get the same 200 whp gain with FI you have to factor in the parasitic loss of the blower... so in summary blower takes more fuel to make the same...
Forum: Forced Induction Discussions 08-05-2024, 05:42 PM
Replies: 135
Views: 34,374
Posted By cjperformance
I would think roughly in the 10-13 degrees max...

I would think roughly in the 10-13 degrees max area for 93 octane and 8 psi. But as noted, you cant really do a final dial in without some testing. And it is not a static number, varies by load....
Forum: Dragstrip and Launching Discussion 08-01-2024, 06:04 PM
Replies: 18
Views: 9,827
Posted By cjperformance
I dont have any specific advice for you... 102 is...

I dont have any specific advice for you... 102 is low, but not sure if 107 is where a 6 speed should be.

The launch is soft as you already knew. Try on a cooler day and uhhhh.... drive harder....
Forum: Dragstrip and Launching Discussion 08-01-2024, 07:27 AM
Replies: 18
Views: 9,827
Posted By cjperformance
What was your mph and 60ft time? ET is mostly...

What was your mph and 60ft time? ET is mostly about the launch. Easy to screw up if you are learning.

If your mph was low too, then it points to other issues. The DA is abysmal around my area too,...
Forum: Camaro Issues / Problems | Warranty Discussions | TSB and Recalls 07-26-2024, 09:52 AM
Replies: 14
Views: 8,265
Posted By cjperformance
The LS3 seal will help with that for sure. As...

The LS3 seal will help with that for sure. As long as there arent any other issues.
Forum: Camaro Issues / Problems | Warranty Discussions | TSB and Recalls 07-26-2024, 08:25 AM
Replies: 14
Views: 8,265
Posted By cjperformance
Regarding "was that all that failed": Should also...

Regarding "was that all that failed": Should also do compression check and cyl leakdown. Excess pressure in the crankcase is one possible cause, but ive also heard they just semi-randomly fail due...
Forum: Transmissions 07-26-2024, 08:18 AM
Replies: 8
Views: 2,245
Posted By cjperformance
I don't have any advice, but didnt want to leave...

I don't have any advice, but didnt want to leave you hanging! I sympathize with the torque converter lockup woes. Mine still doesn't lock at WOT. Hopefully your fix is a solenoid and/or fluid switch...
Forum: Forced Induction Discussions 07-23-2024, 09:47 PM
Replies: 135
Views: 34,374
Posted By cjperformance
Yep. You got it. Or at least it matches my own...

Yep. You got it. Or at least it matches my own understanding! :)

Also, I believe that even though E has less energy content at a given VOLUME of fuel, because you burn more VOLUME of E compared to...
Forum: Forced Induction Discussions 07-10-2024, 05:49 PM
Replies: 135
Views: 34,374
Posted By cjperformance
Not getting into race fuel or specific octane...

Not getting into race fuel or specific octane numbers to do specific things, but pure ethanol is 109 octane for reference. E85 can actually vary between about 60% to 85% ethanol, the rest being...
Forum: Forced Induction Discussions 07-09-2024, 05:13 PM
Replies: 135
Views: 34,374
Posted By cjperformance
Yes, or port inj. Ethanol takes 30% more volume...

Yes, or port inj. Ethanol takes 30% more volume of fuel to hit stoich air/fuel ratio. So basically ethanol will require even more fueling capacity than gasoline.

Honestly id just go port inj out...
Forum: Forced Induction Discussions 07-08-2024, 05:34 PM
Replies: 135
Views: 34,374
Posted By cjperformance
I bet the civic had larger exaust tips than you....

I bet the civic had larger exaust tips than you. Thats why you lost.

For real though, a civic that weighs nothing with 400 whp is pretty crazy.
Forum: Forced Induction Discussions 07-08-2024, 08:12 AM
Replies: 135
Views: 34,374
Posted By cjperformance
You are going to have a harder time getting low...

You are going to have a harder time getting low ETs with a centri vs pd. In quarter mile the first 60 ft make a huge difference and a pd has more grunt down low. Centri takes more rpms to make boost....
Forum: Forced Induction Discussions 07-08-2024, 08:02 AM
Replies: 135
Views: 34,374
Posted By cjperformance
I think you are probably going to want some...

I think you are probably going to want some supplemental high side fueling regardless. KingLT1 or someone else can chime in, but if i recall, there really isnt much overhead in the stock LT1 high...
Forum: Forced Induction Discussions 07-02-2024, 07:57 PM
Replies: 135
Views: 34,374
Posted By cjperformance
Yes :laughabove:

Yes :laughabove:
Forum: Forced Induction Discussions 07-02-2024, 07:27 AM
Replies: 135
Views: 34,374
Posted By cjperformance
E85 for sure. My build is basically E85, port...

E85 for sure. My build is basically E85, port inj, procharger. I did a 3k stall conv too, but wish i had stuck with a stock stall.

I estimate my power level to be high 600whp maybe as much as 700....
Forum: Forced Induction Discussions 06-04-2024, 10:01 PM
Replies: 13
Views: 2,397
Posted By cjperformance
Good to know. Thanks! How did the pulley get that...

Good to know. Thanks! How did the pulley get that bad?
Forum: Forced Induction Discussions 05-15-2024, 05:41 PM
Replies: 12
Views: 1,746
Posted By cjperformance
https://www.camaro6.com/forums/showthread.php?t=61...

https://www.camaro6.com/forums/showthread.php?t=613723
Forum: Forced Induction Discussions 05-15-2024, 05:39 PM
Replies: 12
Views: 1,746
Posted By cjperformance
You'll need E85 to do 700 rwhp if you dont forge...

You'll need E85 to do 700 rwhp if you dont forge the bottom end. Im prob close, but running full E85. Havent blown it up yet, but I'm still trying :smiling1:

You can call THPSI. They are very...
Forum: Forced Induction Discussions 05-15-2024, 07:14 AM
Replies: 12
Views: 1,746
Posted By cjperformance
To summarize a lot.... yes the P1X on its own...

To summarize a lot.... yes the P1X on its own will require fueling upgrades. LT4 stuff will buy you time, but having traveled that route, just go straight to port inj.
Forum: Forced Induction Discussions 05-14-2024, 05:41 PM
Replies: 12
Views: 1,746
Posted By cjperformance
You can easily make 1st, 2nd, and part of 3rd...

You can easily make 1st, 2nd, and part of 3rd gear as well as the last 25% of your gas pedal travel useless before 40 mph w/o a cam :smiling1:
Forum: Forced Induction Discussions 04-17-2024, 05:34 PM
Replies: 2
Views: 1,316
Posted By cjperformance
:smiling1::smiling1::bonk::bonk::bonk: Bout...

:smiling1::smiling1::bonk::bonk::bonk:

Bout that close.

But seriously....it's BAD.
Forum: V8 LT1 Engine, Exhaust, and Bolt-Ons 04-09-2024, 05:42 PM
Replies: 11
Views: 2,108
Posted By cjperformance
A good tuner will give max power without...

A good tuner will give max power without sacrificing any driveability. No reason you cant have both.
Forum: V8 LT1 Engine, Exhaust, and Bolt-Ons 03-13-2024, 05:48 PM
Replies: 4
Views: 2,171
Posted By cjperformance
E85 is harder to ignite esp cold. Thats one...

E85 is harder to ignite esp cold. Thats one reason they still add 15% gasoline. Maybe weak coil on that cyl?
Forum: Forced Induction Discussions 03-13-2024, 07:32 AM
Replies: 24
Views: 3,573
Posted By cjperformance
I never do anything exclusively for looks or...

I never do anything exclusively for looks or sound, but a centri has a great turbo-like whine at lower RPMs just tooling around town. Its very audible. It gives me a warm fuzzy feeling just hearing...
Forum: Forced Induction Discussions 03-12-2024, 05:49 PM
Replies: 24
Views: 3,573
Posted By cjperformance
I loves me some BOV whoosh :laughabove:

I loves me some BOV whoosh :laughabove:
Forum: 2016+ Camaro: 6th Gen Camaro general forum 03-11-2024, 07:39 AM
Replies: 14
Views: 2,754
Posted By cjperformance
790 wheel is a LOT for an LT1 in great shape,...

790 wheel is a LOT for an LT1 in great shape, much less with 132k miles on it. Agree at minimum you're going to need a mechanical refresh.
Forum: 2016+ Camaro: 6th Gen Camaro general forum 03-11-2024, 07:36 AM
Replies: 14
Views: 2,754
Posted By cjperformance
I assume thats 600 WHP. Really thats not a huge...

I assume thats 600 WHP. Really thats not a huge deal. It depends on how well maintained it was and how tolerant you are of future failures due to wear and age, what kind of fuel you will run, and how...
Forum: 2016+ Camaro: 6th Gen Camaro general forum 03-08-2024, 07:31 AM
Replies: 18
Views: 2,253
Posted By cjperformance
Just FYI, If you deviate too much from the stock...

Just FYI, If you deviate too much from the stock tire dias, especially the stock dia ratio front to rear, you are going to have torque management issues.

The torque management system calculations...
Forum: V8 LT1 Engine, Exhaust, and Bolt-Ons 02-07-2024, 07:17 AM
Replies: 14
Views: 6,244
Posted By cjperformance
If i understand this part of the question...

If i understand this part of the question correctly.... the PI runs on low side pressure, not fed by hpfp. So increasing the capacity of your low side may be required, but burden will be less on high...
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