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Search took 1.81 seconds. Search: Posts Made By: JLMounce
Forum: Heating & Cooling TECH 07-15-2026, 06:18 PM
Replies: 14
Views: 227
Posted By JLMounce
It's always a good idea to qualify these...

It's always a good idea to qualify these statements. It's not an apples to apples comparison. The 2nd Gen F-Body and later A bodies got big upgrades in cooling capacity from the factory.

The...
Forum: Heating & Cooling TECH 07-13-2026, 12:52 PM
Replies: 26
Views: 314
Posted By JLMounce
It's a bit of a pain because of where I have my...

It's a bit of a pain because of where I have my trans computer located, but yes I can monitor temperature. I don't know what it runs in 100 degree heat, but average temps I usually see if I'm...
Forum: Suspension TECH 07-13-2026, 12:48 PM
Replies: 11
Views: 216
Posted By JLMounce
I have never been able to successfully bench...

I have never been able to successfully bench bleed a master. As you state, it's messy, annoying and I always fight air in it regardless. I've tried the looped hose method as well as the method...
Forum: Pontiac - Street 07-02-2026, 03:21 PM
Replies: 10
Views: 509
Posted By JLMounce
For a given weight, drag and gearing, the amount...

For a given weight, drag and gearing, the amount of power to sustain driving costs roughly the same, regardless of how much power the engine itself makes.

If nothing else is changing and you...
Forum: Pontiac - Boost 07-01-2026, 09:59 AM
Replies: 4
Views: 366
Posted By JLMounce
Starting at 1* per PSI is a good place to start. ...

Starting at 1* per PSI is a good place to start. Though your blow through carb with e85 may not necessitate early timing drops below a certain threshold. You've got a lot of IAT cooling in that...
Forum: Pontiac - Street 06-24-2026, 08:35 PM
Replies: 51
Views: 1,611
Posted By JLMounce
It certainly sounds like for all intents and...

It certainly sounds like for all intents and purposes, this is a well running stock or near stock configured car.

If the engine accelerates smoothly without any hiccups, coughs, bangs or dead...
Forum: Pontiac - Street 06-24-2026, 01:12 PM
Replies: 51
Views: 1,611
Posted By JLMounce
The OP didn't really indicate that the engine was...

The OP didn't really indicate that the engine was running poorly. It just lacks performance from what he is/was expecting.

A cam not degreed correctly, or a loose timing chain is always a...
Forum: Pontiac - Street 06-24-2026, 12:06 PM
Replies: 51
Views: 1,611
Posted By JLMounce
If there is evidence of a cam swap, it may have...

If there is evidence of a cam swap, it may have reduced your low-end torque slightly. Coupled with the weight of your GTO and your gearing, I could understand the car being a little sluggish off the...
Forum: EFI Tech 06-24-2026, 11:34 AM
Replies: 6
Views: 1,973
Posted By JLMounce
That can happen with or without AI. I'm not...

That can happen with or without AI. I'm not defending AI here, but I can literally post anything I want on this forum and somebody could be mislead by the information. It's the same situation.
...
Forum: Pontiac - Street 06-09-2026, 05:34 PM
Replies: 19
Views: 574
Posted By JLMounce
Sure sounds like the fuel is boiling into vapor...

Sure sounds like the fuel is boiling into vapor and the pump can no longer push pressure.

Modern e10 pump fuel begins to boil as low as around 110* at zero pressure and is mostly vapor by about...
Forum: Pontiac - Race 06-08-2026, 06:03 PM
Replies: 11
Views: 535
Posted By JLMounce
It's my understanding that the replaceable...

It's my understanding that the replaceable cartridge is more about modularity between parts and being able to provide a higher quality lifter, with better tolerances at scale over many different...
Forum: Pontiac - Street 06-03-2026, 09:04 PM
Replies: 17
Views: 676
Posted By JLMounce
Yes, something like that would work. Ideally,...

Yes, something like that would work. Ideally, you also use a fuel tank with a built in sump, like a Tanks inc unit, but the hydromat equipped pump like you have linked would work as well. Maybe...
Forum: Pontiac - Street 06-03-2026, 12:00 PM
Replies: 17
Views: 676
Posted By JLMounce
I like that idea a bit more, but it too is not...

I like that idea a bit more, but it too is not without it's pitfalls.

Yes, you would likely want to use a pusher with a -10 inlet and outlet if those are available. The mechanical pump is now...
Forum: EFI Tech 06-02-2026, 12:14 PM
Replies: 18
Views: 3,135
Posted By JLMounce
The Sniper 2 adds additional RF suppression as...

The Sniper 2 adds additional RF suppression as well, which was a documented issue with the first units. If you're looking for either, try and nab a Sniper 2, it's a better unit.
Forum: Suspension TECH 05-26-2026, 07:57 PM
Replies: 13
Views: 1,236
Posted By JLMounce
FWIW you can get a LOT of caster out of the SPC...

FWIW you can get a LOT of caster out of the SPC arms. Here's my current alignment that was put on the car about a month ago. I'm sitting just shy of 6* of positive caster. My setup uses a .9" Howe...
Forum: Suspension TECH 05-18-2026, 10:50 AM
Replies: 13
Views: 1,236
Posted By JLMounce
It is quite hard to get any amount of real caster...

It is quite hard to get any amount of real caster from the factory arms, without inducing more negative camber than you may want for good tire life.

If tire life, is the preferred result, you may...
Forum: Suspension TECH 05-17-2026, 10:41 AM
Replies: 13
Views: 1,236
Posted By JLMounce
The arms that carry the most amount of...

The arms that carry the most amount of adjustment, and don't leave you doing it with shims are the SPC arms. They are no longer anywhere near economical however. A full set of upper and lowers will...
Forum: Pontiac - Race 05-14-2026, 10:50 AM
Replies: 142
Views: 17,386
Posted By JLMounce
I have a vent setup similar on my Moser 12 bolt. ...

I have a vent setup similar on my Moser 12 bolt. I have the vent mounted on top of the axle where the brake line T sits. While I've never had the car in a lapping environment, it gets beat on. ...
Forum: Pontiac - Street 05-11-2026, 03:07 PM
Replies: 91
Views: 5,572
Posted By JLMounce
Looks like it's coming together! Reliable miles...

Looks like it's coming together! Reliable miles are the best miles!
Forum: Pontiac - Street 05-09-2026, 12:12 PM
Replies: 5
Views: 206
Posted By JLMounce
You can see that they've made an effort to...

You can see that they've made an effort to flatten the spring at the perch by adjusting it's pitch. This should be sufficient for any type of street car. Adding any heat to the spring may cause it...
Forum: Pontiac - Street 05-05-2026, 10:46 AM
Replies: 16
Views: 502
Posted By JLMounce
Probably depends on the person. To me an...

Probably depends on the person.

To me an actual performance build will pay attention to things like quench distances.

If you want a factory type engine, there's probably no real need to worry...
Forum: Pontiac - Street 04-30-2026, 04:23 PM
Replies: 28
Views: 742
Posted By JLMounce
I'd probably go with the .25" phenolic open...

I'd probably go with the .25" phenolic open spacer like this one here.
...
Forum: Pontiac - Street 04-30-2026, 11:01 AM
Replies: 16
Views: 502
Posted By JLMounce
You can definitely do it with custom pistons and...

You can definitely do it with custom pistons and there are several variants of BBC rods that can be used as well if you're turning the crank down to a BBC rod journal size.

At the end of the day...
Forum: 67-69 Firebird TECH 04-29-2026, 08:59 PM
Replies: 6
Views: 232
Posted By JLMounce
I used the dipstick that was on the transmission...

I used the dipstick that was on the transmission from the factory. My trans is a 94 model year out of a GMC 1500 pickup. It's big and sturdy with a nice locking lever for the dipstick itself.
...
Forum: Suspension TECH 04-27-2026, 03:34 PM
Replies: 10
Views: 678
Posted By JLMounce
From your original post you know you have a parts...

From your original post you know you have a parts discrepancy with the front drums. That's the first place I'd start measuring. If there's a parts mis-match, I'd be looking to make sure the...
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