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Forum: Pontiac - Street 09-22-2022, 04:51 PM
Replies: 26
Views: 1,031
Posted By SD455DJ
It sounds like you are rebuilding the shortblock?...

It sounds like you are rebuilding the shortblock? If yes (with stock rods and new pistons or the forged pieces), strive for .040" quench through the combination of piston depth in/out-the-hole and...
Forum: Pontiac - Street 09-22-2022, 03:48 PM
Replies: 59
Views: 1,908
Posted By SD455DJ
We had a ’69 RAIV Firebird at this year’s race...

We had a ’69 RAIV Firebird at this year’s race along with 2 - ’68 RAII Firebirds (all are ‘clone’ cars with the ’69 an original 350HO car and the ’68’s 330 hp Firebird 400 cars). All are 4-speed cars...
Forum: Pontiac - Street 09-21-2022, 08:37 AM
Replies: 26
Views: 1,031
Posted By SD455DJ
Here is a comparison of the last 400's we built...

Here is a comparison of the last 400's we built and dyno'd as they are about as different as you can get factory equipment-wise, but both relatively mild builds. They both had Icon forged pistons and...
Forum: 69-71 Judges only TECH 09-20-2022, 07:25 AM
Replies: 6
Views: 645
Posted By SD455DJ
Yes, 2021...last years event...that indeed is...

Yes, 2021...last years event...that indeed is "The Humbler" after a Gary Riley Level One restoration.

Dennis
Forum: Pontiac - Street 09-19-2022, 07:52 PM
Replies: 53
Views: 2,206
Posted By SD455DJ
FJ, Here are my factory 455HO RA exhaust manifold...

FJ, Here are my factory 455HO RA exhaust manifold outlets I measured before reinstalling on the GT-37 and was surprised (disappointed really) they were no larger than the D-port log manifolds at 2...
Forum: 69-71 Judges only TECH 09-19-2022, 07:00 PM
Replies: 6
Views: 645
Posted By SD455DJ
2021 MCACN.

2021 MCACN.
Forum: 69-71 Judges only TECH 09-19-2022, 06:56 AM
Replies: 6
Views: 645
Posted By SD455DJ
Here is a good picture of the location by...

Here is a good picture of the location by 'eye-balling it.

Dennis
Forum: 70-73 Firebird & TA TECH 09-18-2022, 08:35 PM
Replies: 3
Views: 187
Posted By SD455DJ
RAnacho, Those are Rally II wheels for '73-up A,...

RAnacho, Those are Rally II wheels for '73-up A, F, & G bodies that have the rounded brushed trim rings (these have been polished) and the brushed center cap (Brewster Green TA picture). The '70 15"...
Forum: Pontiac - Street 09-18-2022, 08:17 PM
Replies: 28
Views: 1,239
Posted By SD455DJ
Drewsgto, You're going to need new valve springs...

Drewsgto, You're going to need new valve springs with either cam, but my vote is for the 2802 as it's easier on the valve springs from the slower opening and closing ramps. I had an XE274 (with the...
Forum: National Events 09-18-2022, 08:08 PM
Replies: 8
Views: 468
Posted By SD455DJ
The 2022 Pure Stock Drags are 'in the books' with...

The 2022 Pure Stock Drags are 'in the books' with another successful event with 131 cars total, 7 cars withdrawing due to mechanical issues, so 62 race pairings. Only 1 car went too quick with an...
Forum: Pontiac - Street 09-13-2022, 06:12 PM
Replies: 28
Views: 1,239
Posted By SD455DJ
To add what FJ posted, when we dyno'd 455HO's...

To add what FJ posted, when we dyno'd 455HO's back in the days before we understood what tight quench did and the actual static compression was lower 8's (8.0 to 8.3 range) the best power was in the...
Forum: National Events 09-13-2022, 05:04 PM
Replies: 8
Views: 468
Posted By SD455DJ
Hi Tim, Boy, that's a toss-up...? There is more...

Hi Tim, Boy, that's a toss-up...? There is more racing/runs on Friday and the atmosphere is more relaxed, but Saturday is the better racing as the cars are closest ET-wise and people love to stroll...
Forum: Pontiac - Street 09-13-2022, 04:42 PM
Replies: 28
Views: 1,239
Posted By SD455DJ
This is the car ('71 GT-37) the 455HO now resides...

This is the car ('71 GT-37) the 455HO now resides which is waiting for new canyon copper paint and eyebrow stripes (R/W). It's taking the place of the original 455HO engine that is all apart and in...
Forum: Pontiac - Street 09-13-2022, 04:37 PM
Replies: 28
Views: 1,239
Posted By SD455DJ
Steve, we started with 38 degrees initially (used...

Steve, we started with 38 degrees initially (used 93 octane E10 gas), but then bumped it up to 41 degrees and got half of the hp/tq gain (10/10). I wish I made a last pull form 2500 to 5500 rpm.
...
Forum: Pontiac - Street 09-13-2022, 04:29 PM
Replies: 28
Views: 1,239
Posted By SD455DJ
Yes, it is totally streetable, nice idle with a...

Yes, it is totally streetable, nice idle with a burble. It ended up with 8.6 to 1 compression ratio and the 197 HO heads measured 108.0 cc's across all 8 chambers(!). A 2801 is very similar to the...
Forum: Pontiac - Street 09-13-2022, 03:40 PM
Replies: 28
Views: 1,239
Posted By SD455DJ
Here is a more 'stock' 455HO engine rebuild that...

Here is a more 'stock' 455HO engine rebuild that we ran a Summit 2802 cam in it (224/234/114 duration @ .466"/.488" lift). It is .030" over with forged Eagle H-beam rods and TRW/Sealed Power forged...
Forum: National Events 09-13-2022, 02:37 PM
Replies: 8
Views: 468
Posted By SD455DJ
The weather forecast is about perfect for end of...

The weather forecast is about perfect for end of summer racing (no rain) with daytime highs in the low 80's and mostly sunny for all three days. We're expecting a bumper crop of Pontiacs to show up...
Forum: National Events 09-10-2022, 06:27 PM
Replies: 8
Views: 468
Posted By SD455DJ
This years event T-shirt design... Dennis

This years event T-shirt design...

Dennis
Forum: National Events 09-09-2022, 07:10 PM
Replies: 8
Views: 468
Posted By SD455DJ
The weather is looking really nice for Friday &...

The weather is looking really nice for Friday & Saturday, low 80's and no rain. perfect end of summer weather for the Pure Stock Drags.

Dennis
Forum: National Events 09-07-2022, 10:11 PM
Replies: 8
Views: 468
Posted By SD455DJ
2022 Pure Stock Muscle Car Drag Race - September 15, 16, & 17

We are a week away from the 2022 Pure Stock Muscle Car Drag Race at the Mid-Michigan Motorplex near Stanton, MI (2589 N. Wyman Rd., Stanton, MI 48888). Thursday we start 'early tech' starting at noon...
Forum: 67-79 Big Pontiac TECH 09-07-2022, 05:04 PM
Replies: 438
Views: 90,889
Posted By SD455DJ
Hi Joe! Yes, Dan's 428 is +.030" over. I think...

Hi Joe! Yes, Dan's 428 is +.030" over. I think that cam is holding your engine back from 400+ hp/500 lb-ft torque. Looking forward to seeing you next week (...already! Where did summer go!)!

Dennis
Forum: 67-79 Big Pontiac TECH 09-03-2022, 02:47 PM
Replies: 438
Views: 90,889
Posted By SD455DJ
Dan checked, and it the Melling SPC-7 '068' cam...

Dan checked, and it the Melling SPC-7 '068' cam which is pretty darn faithful to the original. The Melling new version SPC-3 '744' copy cam has been severely 'watered-down' and has less duration at...
Forum: 67-79 Big Pontiac TECH 09-03-2022, 10:26 AM
Replies: 438
Views: 90,889
Posted By SD455DJ
Thanks Gary! The 428 HO dyno'd at 432 hp @ 5000...

Thanks Gary! The 428 HO dyno'd at 432 hp @ 5000 rpm and 502 lbft torque @ 3700 rpm with a real 068 cam and a true 10.75 to 1 compression through inferior flowing A-body RA manifolds with 2 1/8"...
Forum: 70-73 Firebird & TA TECH 09-02-2022, 03:58 PM
Replies: 4
Views: 459
Posted By SD455DJ
We were there...Dan, me, Jeff D., Jeff S., Cory &...

We were there...Dan, me, Jeff D., Jeff S., Cory & Joe driving the 4 Firebirds in the pic...but you already know that. Great show and thanks again for hauling the TA all the way from the west coast to...
Forum: 67-79 Big Pontiac TECH 09-02-2022, 03:54 PM
Replies: 438
Views: 90,889
Posted By SD455DJ
It's Really Done!

The big 428HO Cat is a running driving car as of today...full of fluids and breathing through the Waldron exhaust system. Dan took some 'outdoor' shots that really show-off the Verdero paint in the...
Showing results 1 to 25 of 500

 
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