Showing results 1 to 25 of 500
Search took 0.09 seconds.
Search: Posts Made By: chiphead
Forum: Pontiac - Street Yesterday, 12:39 AM
Replies: 8
Views: 353
Posted By chiphead
I wouldn't install it in a car without a rebuild....

I wouldn't install it in a car without a rebuild. But just for grins, I once took a spare chevy inline 6 that was sitting on the ground, chocked it up with wood blocks and started it. I let it idle...
Forum: Pontiac - Street 03-25-2024, 02:18 PM
Replies: 14
Views: 586
Posted By chiphead
I was planning on doing a shift kit and swapping...

I was planning on doing a shift kit and swapping the loose converter for a 10" continental Jim Hand I have. I could put the stock pressure regulator spring back in it. But I'm now concerned about...
Forum: Pontiac - Street 03-22-2024, 05:13 PM
Replies: 14
Views: 586
Posted By chiphead
Detent wire isn't hooked up at all. I've fixed...

Detent wire isn't hooked up at all. I've fixed the wiring, but haven't hooked it up yet. The modulator is an aftermarket red stripe. I removed the modulator and checked it and the adjustment. I...
Forum: Pontiac - Street 03-22-2024, 03:20 PM
Replies: 8
Views: 255
Posted By chiphead
I've got that setup with a flat lemans hood now. ...

I've got that setup with a flat lemans hood now. RPM and QF 4150. I can't run taller than a 2" element with a drop base 14" aircleaner. Needed to shave the wing nut so it would clear the hood. It...
Forum: Pontiac - Street 03-22-2024, 12:44 PM
Replies: 14
Views: 586
Posted By chiphead
Thanks for the charts! I let the engine warm...

Thanks for the charts!

I let the engine warm up for a few minutes then checked line pressure. Here are my TH400 pressures as it sits, before I change anything.

With vacuum modulator...
Forum: Pontiac - Street 03-22-2024, 10:21 AM
Replies: 14
Views: 586
Posted By chiphead
Does anybody have a line pressure chart for a...

Does anybody have a line pressure chart for a stock TH400, along with test method?

Can you believe I've drug the internet for a few days and cannot find a stock test procedure and chart? It's...
Forum: Pontiac - Street 03-22-2024, 09:35 AM
Replies: 6
Views: 336
Posted By chiphead
A harsh shift shocks the internal parts and can...

A harsh shift shocks the internal parts and can cause breakage. The main line pressure, accumulators, orifice sizes in the separator plate, check balls, waved apply plates, clutch pack clearance,...
Forum: Pontiac - Street 03-19-2024, 11:48 PM
Replies: 79
Views: 8,298
Posted By chiphead
If you don't want to build a Q-jet, and you're...

If you don't want to build a Q-jet, and you're not running a spreadbore only intake, a 750cfm vacuum secondary 4150 is likely the way to go. Set some proform metering blocks up like a classic...
Forum: Pontiac - Street 03-18-2024, 05:34 PM
Replies: 19
Views: 766
Posted By chiphead
This right hurrr ^ is why to use the 3 wire. ...

This right hurrr ^ is why to use the 3 wire. Remote voltage sensing and clean regulation across the load/RPM range is why you want the 3 wire. Retaining the idiot light is neat too.

I use the...
Forum: Pontiac - Street 03-18-2024, 12:45 PM
Replies: 14
Views: 586
Posted By chiphead
I hear you, I'll freshen it when this motor comes...

I hear you, I'll freshen it when this motor comes out in the next year or two. But I'd like to open it up, change the filter and see if its healthy. If not, I'll need to do the motor swap sooner...
Forum: Pontiac - Street 03-17-2024, 07:33 PM
Replies: 19
Views: 766
Posted By chiphead
A 3 wire alternator, properly installed. ...

A 3 wire alternator, properly installed.

Seriously, the only alternator I've ever had trouble with, in 40 years of working on cars, was the aftermarket, poorly designed, poorly implemented,...
Forum: Pontiac - Street 03-15-2024, 11:25 AM
Replies: 14
Views: 586
Posted By chiphead
TH400 shift kit modifications?

So I want to put a Transgo shift kit in my TH400. I don't know the year of the trans or what's been done to it. It does shift like it's had some work done to it. The shifts are firm, but...
Forum: Pontiac - Street 03-13-2024, 10:46 AM
Replies: 13
Views: 534
Posted By chiphead
Depends on what you can buy it for. I wouldn't...

Depends on what you can buy it for. I wouldn't pay over 1K, since I'd gut it like a fish and start over. If you're willing to run those cast pistons and slap a set of high compression heads, maybe...
Forum: Pontiac - Street 03-12-2024, 09:30 PM
Replies: 3
Views: 231
Posted By chiphead
Typically when a TH350 has a hard part failure,...

Typically when a TH350 has a hard part failure, it's often the intermediate sprag race. The direct drum is spinning at like 2/3 engine speed in first gear. The sprag stops the direct drum during...
Forum: Pontiac - Street 03-11-2024, 02:02 PM
Replies: 9
Views: 644
Posted By chiphead
How much plug coloring is realistic with E10...

How much plug coloring is realistic with E10 fuel?

With the carb changes I made (.031 upper emulsion, one step larger jets, up on the fuel level, increase IFR), the AFR gauge is showing 0.5 to 1...
Forum: Pontiac - Street 03-10-2024, 12:37 PM
Replies: 64
Views: 2,359
Posted By chiphead
Depends on a lot of factors. Cheap walmart tires...

Depends on a lot of factors. Cheap walmart tires in Arizona, 3-4 years tops. Michelins in a mild climate and maintained well, likely 8 years if they don't wear out first. Usually I wear out a set...
Forum: SOLD Parts 03-10-2024, 11:47 AM
Replies: 11
Views: 1,063
Posted By chiphead
Fans sold, Thanks PY!

Fans sold, Thanks PY!
Forum: Pontiac - Street 03-08-2024, 01:59 PM
Replies: 9
Views: 644
Posted By chiphead
With the Proform metering blocks, the primary...

With the Proform metering blocks, the primary boosters have been slow to come on. At cruise as I add throttle, the AFR goes to 15.5s before it drops down into the 13s at about 2600 RPM. It doesn't...
Forum: SOLD Parts 03-08-2024, 12:51 AM
Replies: 11
Views: 1,063
Posted By chiphead
PMs replied, thanks!

PMs replied, thanks!
Forum: Pontiac - Street 03-08-2024, 12:30 AM
Replies: 9
Views: 644
Posted By chiphead
I chopped the #3 plug, as it looked the leanest. ...

I chopped the #3 plug, as it looked the leanest. There is no fuel ring at the bottom, the whole insulator looks as white as the pictures. So it's lean and plug range is hot. I guess leaner is...
Forum: Pontiac - Street 03-07-2024, 12:17 PM
Replies: 9
Views: 644
Posted By chiphead
I did just change to the NGK XR5, which is...

I did just change to the NGK XR5, which is supposed to be equivalent to the R44S plug, one heat range cooler than the R45S. The 389 plug heat range thread got me thinking about plug heat ranges, so...
Forum: Pontiac - Street 03-07-2024, 11:06 AM
Replies: 9
Views: 644
Posted By chiphead
Read my R45S plugs?

Here's the #7 plug from my 400 with 62 heads. All the R45S plugs look exactly the same. Slight bit of oil on the threads, some carbon, white insulators. Car runs really well, just obsessing on the...
Forum: SOLD Parts 03-03-2024, 10:46 PM
Replies: 11
Views: 1,063
Posted By chiphead
Bump! Need the space, make offer. Fits...

Bump! Need the space, make offer.

Fits 66-67 Lemans/Tempest/GTO
Forum: Pontiac - Street 02-29-2024, 01:42 PM
Replies: 26
Views: 1,277
Posted By chiphead
I always use 1016 gasket and ARP bolts with iron...

I always use 1016 gasket and ARP bolts with iron heads.

Have the heads been checked for cracks? I could see a head crack making you chase your tail.
Has the depth of the block's bolt holes...
Forum: Performance Parts For Sale/Wanted 02-28-2024, 10:10 AM
Replies: 0
Views: 159
Posted By chiphead
Pair of 8" weld draglites FS

Selling my pair of weld draglite wheels. They are 5.5 backspace from the mounting face to the inner wheel lip, and 3.5" from the mounting face to the outer wheel lip. They have the 5x4.75 and 5x4.5...
Showing results 1 to 25 of 500

 
Forum Jump

All times are GMT -4. The time now is 08:58 PM.

 

About Us

The PY Online Forums is the largest online gathering of Pontiac enthusiasts anywhere in the world. Founded in 1991, it was also the first online forum for people to gather and talk about their Pontiacs. Since then, it has become the mecca of Pontiac technical data and knowledge that no other place can surpass.

 




Copyright © 2017