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Posts Made By:
JLMounce
Forum:
Pontiac - Street
Today, 09:52 AM
Replies:
62
Catastrophic Engine Failure
Views:
3,300
Posted By
JLMounce
I thought about pulling a couple bearing caps,...
I thought about pulling a couple bearing caps, and maybe I mentioned that, but decided against it at the time.
Forum:
Pontiac - Street
Yesterday, 11:02 PM
Replies:
62
Catastrophic Engine Failure
Views:
3,300
Posted By
JLMounce
Thanks, yes they are magnetizing the crank and...
Thanks, yes they are magnetizing the crank and the block. If there’s anything keeping the crank from being repaired, I’ll go to a forged 4.25” stroke crank.
Forum:
Pontiac - Street
Yesterday, 09:22 PM
Replies:
62
Catastrophic Engine Failure
Views:
3,300
Posted By
JLMounce
I never pulled a rod bearing, just the main cap...
I never pulled a rod bearing, just the main cap needed to pound in the new dipstick. So I never really could determine health of the rod bearings.
It's certainly possible that the issues I was...
Forum:
Pontiac - Street
Yesterday, 06:29 PM
Replies:
9
4L80e questions.
Views:
270
Posted By
JLMounce
Looking at your pictures I believe you have an...
Looking at your pictures I believe you have an early solenoid, so yes you'll have that expense regardless.
If you can find a second hand Quick 4, the unit itself doesn't matter what transmission...
Forum:
Suspension TECH
Yesterday, 06:26 PM
Replies:
4
BMW Wheels
Views:
84
Posted By
JLMounce
120mm wheels do NOT fit on 120.65mm wheels. Will...
120mm wheels do NOT fit on 120.65mm wheels. Will they physically mount? Yes. What happens however is that as the lugs are tightened it either elongates the mounting holes on the wheel, or bends...
Forum:
Pontiac - Street
Yesterday, 06:23 PM
Replies:
62
Catastrophic Engine Failure
Views:
3,300
Posted By
JLMounce
Good to know, thanks.
Good to know, thanks.
Forum:
Pontiac - Street
Yesterday, 04:22 PM
Replies:
9
4L80e questions.
Views:
270
Posted By
JLMounce
The Gas Truck 4l80e converters are actually...
The Gas Truck 4l80e converters are actually pretty decent factory pieces. Yeah it may not be optimal, but I don't necessarily think it'll leave you wanting, unless you're really chasing 10ths.
...
Forum:
Pontiac - Street
Yesterday, 04:11 PM
Replies:
62
Catastrophic Engine Failure
Views:
3,300
Posted By
JLMounce
Yup, I have already discussed this with them. ...
Yup, I have already discussed this with them. They'll remove all lifter galley plugs during the cleaning process.
:beerchug:
Forum:
Pontiac - Street
Yesterday, 03:18 PM
Replies:
62
Catastrophic Engine Failure
Views:
3,300
Posted By
JLMounce
The cylinder walls are in great shape. Much of...
The cylinder walls are in great shape. Much of the cross-hatching is still there with some minor thrust side wear. The block will only get honed to spec for a +0.040 piston, and done so with a...
Forum:
Pontiac - Street
Yesterday, 01:15 PM
Replies:
62
Catastrophic Engine Failure
Views:
3,300
Posted By
JLMounce
This is pretty much what the machine shop said as...
This is pretty much what the machine shop said as well when I dropped it off this morning. I had them look at the thrust bearing and they noted that it was normal.
Sounds like the engine just got...
Forum:
Pontiac - Street
Yesterday, 11:38 AM
Replies:
62
Catastrophic Engine Failure
Views:
3,300
Posted By
JLMounce
I'm still doing the full build, so the money...
I'm still doing the full build, so the money isn't necessarily changing. Although, I'll be able to sell the cam. I know there's a couple people looking for stump puller type cams.
You're...
Forum:
Pontiac - Street
Yesterday, 10:54 AM
Replies:
62
Catastrophic Engine Failure
Views:
3,300
Posted By
JLMounce
I don't know much of the engine's history. When...
I don't know much of the engine's history. When I purchased the car in 1998, the engine was claimed to be fresh at the time. The previous owner didn't furnish any receipts or documents related to...
Forum:
Pontiac - Street
Yesterday, 10:46 AM
Replies:
9
4L80e questions.
Views:
270
Posted By
JLMounce
I'm not an expert on these. But I believe that...
I'm not an expert on these. But I believe that you can not put a late sprag on an early drum. You would have to change the complete drum itself.
That said I don't believe at the power level we...
Forum:
Pontiac - Street
06-23-2024, 10:45 PM
Replies:
62
Catastrophic Engine Failure
Views:
3,300
Posted By
JLMounce
Finally got a full weekend that I wasn’t busy, so...
Finally got a full weekend that I wasn’t busy, so I was able to get the engine out and disassembled.
I didn’t document much as I just wanted to get things done, but I’m left a little befuddled....
Forum:
Pontiac - Street
06-23-2024, 10:22 PM
Replies:
9
4L80e questions.
Views:
270
Posted By
JLMounce
You’ll need to figure out what year it is. The...
You’ll need to figure out what year it is. The very early models typically will need the internal harness upgraded.
I believe that is the case for 91-93 model transmissions.
A fully...
Forum:
Pontiac - Street
06-21-2024, 09:25 PM
Replies:
17
Cam lobe wear question
Views:
475
Posted By
JLMounce
Is there a reason you believe the cam needs to be...
Is there a reason you believe the cam needs to be replaced, or is this more of a piece of mind type situation?
With a hydraulic cam, I don't think I would necessarily measure from a valve spring. ...
Forum:
Exhaust TECH
06-20-2024, 03:50 PM
Replies:
18
Exhaust help 2.5 vs 3"
Views:
495
Posted By
JLMounce
How much of a performance hit did you take? ...
How much of a performance hit did you take?
I'm building a much healthier engine currently and I'm currently running a 2.5" mandrel bent pypes system with the pypes mufflers replaced with...
Forum:
Pontiac - Street
06-20-2024, 09:51 AM
Replies:
25
Roller lifters. Tick >> sewing machine sound. OK?
Views:
777
Posted By
JLMounce
The sewing machine sound is likely your rockers. ...
The sewing machine sound is likely your rockers. That is normal for many full roller rockers. I had ticking lifters for years without issue, other than they were annoying.
I agree with Jay that...
Forum:
Pontiac - Street
06-17-2024, 08:03 PM
Replies:
23
Higher Ratio Rocker vs. More Lobe Lift
Views:
997
Posted By
JLMounce
Thanks, this is good insight as well. My...
Thanks, this is good insight as well.
My engine is coming out and getting disassembled this weekend. Still need to start making some purchases.
Forum:
Pontiac - Street
06-15-2024, 10:23 AM
Replies:
19
after market system
Views:
544
Posted By
JLMounce
If you’re asking about the progression ignition,...
If you’re asking about the progression ignition, yes. It must be attached to manifold vacuum so its internal MAP sensor can function.
Forum:
Pontiac - Street
06-14-2024, 11:16 PM
Replies:
19
after market system
Views:
544
Posted By
JLMounce
You can't think about it in terms of boost retard...
You can't think about it in terms of boost retard with a system like the Progression ignition, or any type of table based ignition controller.
Instead, you'll build a spark map based on engine...
Forum:
Pontiac - Street
06-14-2024, 11:04 AM
Replies:
23
Higher Ratio Rocker vs. More Lobe Lift
Views:
997
Posted By
JLMounce
Appreciate all this information Jay.
Appreciate all this information Jay.
Forum:
Pontiac - Street
06-14-2024, 10:50 AM
Replies:
19
after market system
Views:
544
Posted By
JLMounce
This was my original thought too. With what the...
This was my original thought too. With what the OP is needing, the Progression Ignition seems to fit the bill.
Forum:
Pontiac - Street
06-13-2024, 01:55 PM
Replies:
20
4L80 Conversion
Views:
571
Posted By
JLMounce
Yeah as long as you have something like a...
Yeah as long as you have something like a shiftworks detent in the shifter, or a shifter designed for your 4 speed anyway, that's doable.
In the US shift programming you can actually set the...
Forum:
Pontiac - Street
06-13-2024, 12:02 PM
Replies:
20
4L80 Conversion
Views:
571
Posted By
JLMounce
Autocross with an auto is not really a big deal. ...
Autocross with an auto is not really a big deal. Most cars are in 2nd for the whole run. Road courses are a different story of course.
And yes the US shift controller has the ability to store 4...
Showing results 1 to 25 of 500
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