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Forum: Pontiac - Race 10-25-2022, 06:18 PM
Replies: 13
Views: 1,513
Posted By taff2
We like to use the st cut factory gear sets in...

We like to use the st cut factory gear sets in our TH400 builds if they are available- trouble is,they are in short supply now and pretty expensive.
We have one st. cut set in a customers 6000lb LWB...
Forum: Pontiac - Race 08-31-2021, 07:30 AM
Replies: 22
Views: 3,637
Posted By taff2
I used to do the same as slowbird, pretty...

I used to do the same as slowbird, pretty consistent 9.60's once all the fluid temps had stabilised, 1.34 60fts.
Forum: Pontiac - Boost 08-31-2021, 07:25 AM
Replies: 30
Views: 9,236
Posted By taff2
The bit I don't like about the Offy 2x4 is the...

The bit I don't like about the Offy 2x4 is the 'dog leg' in the ports, the air has to turn almost 90 degrees. When I reworked mine I cut the top of each port off and welded in a new roof so that the...
Forum: Pontiac - Street 08-29-2021, 08:22 AM
Replies: 24
Views: 3,605
Posted By taff2
Why not just get a set of 'shorty' type headers...

Why not just get a set of 'shorty' type headers made locally to suit what you have, or make a set yourself from a SBC weld it up kit but using Pontiac flanges? You could even fab a pair of log type...
Forum: Pontiac - Street 08-25-2021, 07:41 AM
Replies: 11
Views: 2,802
Posted By taff2
Put a piece of heat reflective material around...

Put a piece of heat reflective material around the filter, you can get the embossed thin alloy sheet type that can be folded,shaped,riveted etc, or the fibreglass backed cloth type that can be made...
Forum: Pontiac - Street 08-13-2021, 06:22 AM
Replies: 64
Views: 9,787
Posted By taff2
[QUOTE=carbking;6265707]American-made carburetor...

[QUOTE=carbking;6265707]American-made carburetor rebuilding kits
And here's the real reason for most of the delays- everything is manufactured overseas or manufactured from materials that come from...
Forum: Pontiac - Race 08-10-2021, 07:13 AM
Replies: 41
Views: 9,313
Posted By taff2
Fantastic time for sure, but it does make you...

Fantastic time for sure, but it does make you realise how good Marty Palbykins runs were back in '96 , 6.95 in a 2950 lb car using a factory block just 400 cu in engine, in a 2500 lb car that would...
Forum: Pontiac - Race 08-10-2021, 06:59 AM
Replies: 2,063
Views: 356,698
Posted By taff2
I'm with Jack, the constant childish bickering is...

I'm with Jack, the constant childish bickering is tedious, almost every tech thread is ruined.
Forum: Pontiac - Race 07-30-2021, 07:13 AM
Replies: 18
Views: 4,443
Posted By taff2
I've run ali rods in my Pontiacs with around...

I've run ali rods in my Pontiacs with around 80-100 psi cold start pressures, I used to heat the oil pan with a small electric fan heater before I started the car after leaving it stand for a few...
Forum: Pontiac - Street 07-21-2021, 05:07 PM
Replies: 63
Views: 12,087
Posted By taff2
It's all about 'offshore parts ' or parts...

It's all about 'offshore parts ' or parts manufactured from 'offshore' materials.
Forum: Pontiac - Race 07-06-2021, 05:17 AM
Replies: 53
Views: 12,318
Posted By taff2
I put over 300 runs on a well used set of blown...

I put over 300 runs on a well used set of blown meth 7" Brooks 88 Chrysler rods I adapted to a n/a 406 many years back, my current Brooks B2 rods have done just 40 passes in a 1400hp capable 427...
Forum: Pontiac - Street 06-18-2021, 07:55 AM
Replies: 18
Views: 3,259
Posted By taff2
There was recently a post where a guy in the UK...

There was recently a post where a guy in the UK bought a ready balanced rotating kit from one of the US vendors, (expecting it to be a drop in job), however the crank counterweights hit the oil pump...
Forum: Pontiac - Street 06-10-2021, 05:45 AM
Replies: 23
Oil
Views: 4,775
Posted By taff2
You wouldn't go far wrong with Valvoline VR1...

You wouldn't go far wrong with Valvoline VR1 20-50 imo. I've used it for years in everything from my race cars, camper van, my Jag road cars, wif'e Toyota, even my sons 4 stroke dirt bikes.
Forum: Pontiac - Street 06-05-2021, 08:25 AM
Replies: 76
Views: 13,414
Posted By taff2
ps, turning down an oil pump driveshaft by .050"...

ps, turning down an oil pump driveshaft by .050" means taking a .025" cut, that's .025" off each side - not .050" off each side!
Forum: Pontiac - Street 06-05-2021, 08:21 AM
Replies: 76
Views: 13,414
Posted By taff2
I fully understand the principle of a torsional...

I fully understand the principle of a torsional shaft- we use more than a few in the trans we build - however,that turned down shaft has 90 degree sharp edges where the turned down section meets...
Forum: Pontiac - Race 06-05-2021, 08:00 AM
Replies: 53
Views: 12,318
Posted By taff2
ps, my cars are always garaged and it doesn't get...

ps, my cars are always garaged and it doesn't get that cold over here even in Winter. (except for that one time I left the car in the trailer for a week and the block froze and cracked, but that's...
Forum: Pontiac - Race 06-04-2021, 08:21 AM
Replies: 53
Views: 12,318
Posted By taff2
Looks like pin buttons, or is that the actual...

Looks like pin buttons, or is that the actual thickness of the pins?
I've never slackened the rod bolts over winter in any of my ali rod engines - maybe if you live in the North Pole yeah.
Forum: Pontiac - Street 06-03-2021, 08:02 AM
Replies: 76
Views: 13,414
Posted By taff2
That shaft wouldn't be used in any engine of...

That shaft wouldn't be used in any engine of mine, not even a mild street type.
Forum: Pontiac - Race 06-02-2021, 06:37 PM
Replies: 53
Views: 12,318
Posted By taff2
Lots of performance Brit bikes ran alloy rods as...

Lots of performance Brit bikes ran alloy rods as standard back in the '70's as I remember. I prefer ali rods in a big boost combo (and even in a lower boost combo), I prefer the forged type ali rod...
Forum: Pontiac - Street 06-02-2021, 06:24 PM
Replies: 76
Views: 13,414
Posted By taff2
There's probably only one small spot at the...

There's probably only one small spot at the largest diameter of the counterweight that will be close, I would grind a small flat at that spot - just enough to give .050" clearance. As Mgarblik said...
Forum: Pontiac - Street 06-02-2021, 08:41 AM
Replies: 76
Views: 13,414
Posted By taff2
The OP is in the UK, it's very difficult to find...

The OP is in the UK, it's very difficult to find anyone over here that can be trusted to do any Pontiac high performance mods or machine work. The reason I built my own mains girdle was because I...
Forum: Pontiac - Street 06-01-2021, 07:23 AM
Replies: 76
Views: 13,414
Posted By taff2
Who in the USA did you buy the balanced rotating...

Who in the USA did you buy the balanced rotating assembly from? A rebalance over here will cost around £250- maybe you can get the supplier to pay towards it, as the crank they supplied must be...
Forum: Pontiac - Street 05-31-2021, 07:33 AM
Replies: 9
Views: 1,268
Posted By taff2
We try not to use the cork gaskets -too easy for...

We try not to use the cork gaskets -too easy for the customer to overtighten. We use the thinner hard fibre gaskets, stick it to the pan only with a thin bead of Grey Abro or Permatex if the pan is...
Forum: Pontiac - Street 05-31-2021, 07:29 AM
Replies: 76
Views: 13,414
Posted By taff2
I would want a minimum of .050" clearance, that...

I would want a minimum of .050" clearance, that pump shaft does oscillate in use.
Forum: Pontiac - Street 05-31-2021, 07:26 AM
Replies: 10
Views: 1,647
Posted By taff2
Is it an old Eagle crank or a recent one? A lot...

Is it an old Eagle crank or a recent one? A lot of the early Eagle cranks and rods were rubbish -tolerances all over the place. Typical Chinese made pieces, you have to check everything. I would...
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