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Search took 0.01 seconds. Search: Posts Made By: PontiacLars
Forum: Pontiac - Street 04-10-2024, 02:51 AM
Replies: 8
Views: 338
Posted By PontiacLars
EFI air filter solutions

I have FiTech EFI on my engine. My Butler dropbase shaker assembly do not fit on this unit because it sits to low and hits the housing and fuel lines.

I have looked at using Spectr 98499 with a 4"...
Forum: Pontiac - Street 03-15-2024, 04:18 PM
Replies: 39
Views: 2,121
Posted By PontiacLars
Johnson hydraulics.

Johnson hydraulics.
Forum: Pontiac - Street 03-11-2024, 04:20 PM
Replies: 39
Views: 2,121
Posted By PontiacLars
Anyone tried Driven HR6 10W40? Spec looks good.

Anyone tried Driven HR6 10W40?
Spec looks good.
Forum: Pontiac - Street 03-10-2024, 03:27 PM
Replies: 39
Views: 2,121
Posted By PontiacLars
Bearing Oil Clearance Chart Oil...

Bearing Oil Clearance Chart

Oil Viscosity Rod BearingClearance Main BearingClearance
20w / 5w20. < 0.0021 <0.0020
30w / 5w30 0.0021 – 0.0026 0.0020 – 0.0025
40w /...
Forum: Pontiac - Street 03-10-2024, 02:53 PM
Replies: 39
Views: 2,121
Posted By PontiacLars
I checked some oil charts and with my clerances,...

I checked some oil charts and with my clerances, iron block and auto cross or street driving the recommendation was 20w50. Pure drag racing could use lighter as the oil did not get that hot.

My...
Forum: Pontiac - Street 03-10-2024, 06:09 AM
Replies: 39
Views: 2,121
Posted By PontiacLars
Oil viscocity 5W50

I will use Vavoline VR-1 racing oil in my engine. 3" mains and 2.2" rods.
Bearing clerance .0030-.0032 mains and .0028 rods.
Valvoline has this oil in 20W50 and 5W50. I dont really like how thick ...
Forum: Pontiac - Street 02-26-2024, 05:20 PM
Replies: 12
Views: 676
Posted By PontiacLars
Sounds like I will try without drainback valve. ...

Sounds like I will try without drainback valve.

I will use a remote setup because of header clerance and I can run a large filter to increase total oil capacity. Anyone mounted the filter on...
Forum: Pontiac - Street 02-20-2024, 06:43 PM
Replies: 12
Views: 676
Posted By PontiacLars
Oil cooler install

Planing on installing oil cooler when I install my remote oil filter setup. Do I need some sort of anti drain back valve on the lines to prevent long pressure build up at engine start?
Forum: Pontiac - Street 01-28-2024, 09:19 AM
Replies: 19
Views: 1,136
Posted By PontiacLars
They are made in Mexico.

They are made in Mexico.
Forum: Pontiac - Street 01-27-2024, 06:05 PM
Replies: 2
Views: 1,558
Posted By PontiacLars
Yes. Everything came with rotating assembly from...

Yes. Everything came with rotating assembly from Butler. The instruction sheet from Ross says rails are for a certain bore range and they should fit my 4.160 bore. But I dont like that they get way...
Forum: Pontiac - Street 01-27-2024, 05:20 PM
Replies: 19
Views: 1,136
Posted By PontiacLars
Installed the Clevite bearings today. I now have...

Installed the Clevite bearings today. I now have 0.0027. Very happy with this clerance.
Forum: Pontiac - Street 01-27-2024, 05:14 PM
Replies: 2
Views: 1,558
Posted By PontiacLars
Oil support rail gap

Ross pistons. 4.5" stroker, so pistons have oil ring support rails.
Ross instruction says gap should be minimum 0.010 and Max 0.187. I get 0.384. Is this a problem? Do I have the wrong support rings?
Forum: Pontiac - Street 01-22-2024, 01:11 PM
Replies: 19
Views: 1,136
Posted By PontiacLars
Local supplyer has Clevite in stock, so will try...

Local supplyer has Clevite in stock, so will try them first.
I use micrometer and set it with the journal, then zero the dial bore gauge on the micrometer and messure the bearings. Shop temp is...
Forum: Pontiac - Street 01-22-2024, 12:03 PM
Replies: 19
Views: 1,136
Posted By PontiacLars
I will try a set of Clevite and see if they are a...

I will try a set of Clevite and see if they are a bit tighter.
CB743HN. Anyone with experience with these bearings?
Forum: Pontiac - Street 01-21-2024, 04:04 PM
Replies: 65
Views: 6,505
Posted By PontiacLars
This issue is now fixed with a new trip to...

This issue is now fixed with a new trip to machineshop. I now have .0029 on all expect thrust bearing with 0.0032. Should work out good I guess.
Forum: Pontiac - Street 01-21-2024, 03:55 PM
Replies: 19
Views: 1,136
Posted By PontiacLars
Big rod clerance

Molnar 4.5" forged crank
Molnar H-rods
FM 7200CH bearings

I get 0.0030 rod bearing clerance. I guess I need 0.001 undersize bearings or will that be too tight? Is this normal with new parts from...
Forum: Pontiac - Street 12-13-2023, 02:18 PM
Replies: 65
Views: 6,505
Posted By PontiacLars
Thank you :)

Thank you :)
Forum: Pontiac - Street 12-13-2023, 04:22 AM
Replies: 65
Views: 6,505
Posted By PontiacLars
Thats great, thanks.

Thats great, thanks.
Forum: Pontiac - Street 12-12-2023, 04:52 PM
Replies: 65
Views: 6,505
Posted By PontiacLars
Looking forward to testing after the winter....

Looking forward to testing after the winter. Hopefully the cam is big enough.
Going in a 76 Trans Am 4 speed.
Block number I believe is 481988. So its the strong casting.

Anyone have factory...
Forum: Pontiac - Street 12-11-2023, 07:09 PM
Replies: 65
Views: 6,505
Posted By PontiacLars
I have prepped the heads with spring cups and...

I have prepped the heads with spring cups and upgraded valve locks. Did not like the ones from Speedmaster. Will check coil bind also.

The crank is 4.5" stroke.
Round port headers and FiTech...
Forum: Pontiac - Street 12-11-2023, 06:59 AM
Replies: 65
Views: 6,505
Posted By PontiacLars
Sure hope so. Heads are ported Speedmaster. ...

Sure hope so.
Heads are ported Speedmaster.
This is the camshaft, with Johnson lifters.

(HR) (Std Firing Order/ Std Journals) 294/300, 242/248, .540/.563, 114LS with 1.5 ratio rockers
Lift with...
Forum: Pontiac - Street 12-11-2023, 03:59 AM
Replies: 65
Views: 6,505
Posted By PontiacLars
Thank you all for the calming words. Loosing my...

Thank you all for the calming words. Loosing my sleep over this.
Thank you for offering timing chains. I am located in Europe, and have other machine shops around.
Dont know if I dare to let the...
Forum: Pontiac - Street 12-10-2023, 03:27 PM
Replies: 65
Views: 6,505
Posted By PontiacLars
Looks to me like machine shop screwed up. Bore...

Looks to me like machine shop screwed up.
Bore 3 is 0.002755 out of round.
Overall the bores vary about 0.00157 in diameter.
What do you guys think?
If the block is already at or over Max...
Forum: Pontiac - Street 12-08-2023, 07:31 PM
Replies: 65
Views: 6,505
Posted By PontiacLars
I will remove bearings and messure bores myself...

I will remove bearings and messure bores myself to check actual diameter of the mains and compare to numbers given by machine shop.
Crank messures 2.9994. Same on all mains. Is this small?

What...
Forum: Pontiac - Street 12-08-2023, 06:14 PM
Replies: 65
Views: 6,505
Posted By PontiacLars
Too big main clearance after alignhone

Machine shop aligne honed and installed splayed 4 bolt mains. I see they made the bores on the upper limit, around 3.1890.
Cap number 4 is outside toleranse at 3.1894.

I get these main clerances...
Showing results 1 to 25 of 102
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