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Posts Made By:
darbikrash
Forum:
THE LOBBY
Today, 02:37 PM
Replies:
148
New Pontiac project
Views:
26,764
Posted By
darbikrash
I think a custom supercharger lid could be made...
I think a custom supercharger lid could be made without too much trouble that could mount the shaker lid in the correct position. To do this properly, I'd need a car to take measurements and fit...
Forum:
THE LOBBY
09-21-2024, 07:51 PM
Replies:
148
New Pontiac project
Views:
26,764
Posted By
darbikrash
Big milestone today. A forum member who is the...
Big milestone today. A forum member who is the first to get a pre-production supercharger kit installed the very first blown 455 in a 1969 GTO today. The engine looks great in there, and there were...
Forum:
THE LOBBY
09-16-2024, 04:59 PM
Replies:
148
New Pontiac project
Views:
26,764
Posted By
darbikrash
Here is the latest version of the 3D printed AC...
Here is the latest version of the 3D printed AC bracket, using a Sanden style compressor. This is pretty close to the production version, it seems to package pretty nicely at or about the location of...
Forum:
THE LOBBY
09-09-2024, 05:08 PM
Replies:
148
New Pontiac project
Views:
26,764
Posted By
darbikrash
Here are a couple of pics of the 2nd test engine,...
Here are a couple of pics of the 2nd test engine, a 455 built by another forum member. This may be ready to go into a car as soon as next weekend.
Other progress is the AC module is complete, it...
Forum:
THE LOBBY
08-27-2024, 01:17 PM
Replies:
148
New Pontiac project
Views:
26,764
Posted By
darbikrash
Things are moving along nicely. The foundry...
Things are moving along nicely.
The foundry has completed the Lid tooling and is finishing up the other parts now.
In-car testing is planned for two vehicles, both GTO's. One is my '65, and...
Forum:
THE LOBBY
08-26-2024, 11:26 AM
Replies:
45
Reasonable quality tools
Views:
1,977
Posted By
darbikrash
Another suggestion is Williams tools. They are...
Another suggestion is Williams tools. They are the industrial arm of Snap On, sold to businesses generally and not mechanics, and much cheaper as they are not sold on the tool trucks. They have a...
Forum:
THE LOBBY
07-31-2024, 05:52 PM
Replies:
148
New Pontiac project
Views:
26,764
Posted By
darbikrash
Some quick updates, I've been busy getting this...
Some quick updates, I've been busy getting this closer to production. the foundry has the patterns for the lid and are now working on the water crossover and manifold risers. In the meantime, I have...
Forum:
THE LOBBY
06-01-2024, 11:41 AM
Replies:
148
New Pontiac project
Views:
26,764
Posted By
darbikrash
We're still some ways away from any all-in...
We're still some ways away from any all-in pricing, the foundry will probably not finalize the production casting quotes until the first articles are approved later this summer.
The all-in cost...
Forum:
THE LOBBY
05-30-2024, 11:19 AM
Replies:
148
New Pontiac project
Views:
26,764
Posted By
darbikrash
I’ve delivered one of the superchargers and it...
I’ve delivered one of the superchargers and it will be in a car soon. In the meantime, I’ve been busy developing the 6 rib serpentine accessory drive for Type II PS pump and a 140 amp alternator.
...
Forum:
THE LOBBY
04-22-2024, 04:50 PM
Replies:
148
New Pontiac project
Views:
26,764
Posted By
darbikrash
Agreed. In Post 103 above we showed a best...
Agreed.
In Post 103 above we showed a best of 657 HP (first graph) on the 4X heads with the pulley slipping. I'm confident that had we not had the pulley slip we would have touched 700 due to...
Forum:
THE LOBBY
04-22-2024, 04:04 PM
Replies:
148
New Pontiac project
Views:
26,764
Posted By
darbikrash
Thanks for your feedback, and I agree. The...
Thanks for your feedback, and I agree.
The baseline run N/A with a carb made 419 HP, so the supercharger made +50% more power- with a disproportionate increase in torque. Not many 600 HP engines...
Forum:
THE LOBBY
04-21-2024, 05:18 PM
Replies:
148
New Pontiac project
Views:
26,764
Posted By
darbikrash
I've had a chance to dig into some of the Holley...
I've had a chance to dig into some of the Holley EFI datalogs from the dyno session earlier this week, and though I'd post up some of the plots.
This shows engine vacuum at idle converted to...
Forum:
EFI Tech
04-19-2024, 11:54 AM
Replies:
57
12-1 Crank Sensor Kits For Pontiac??? Crickets, Really?
Views:
6,066
Posted By
darbikrash
If reference angle is zero, then we are left with...
If reference angle is zero, then we are left with 90+(90/2), or 90+45 so it would be 135 degrees.
Forum:
THE LOBBY
04-18-2024, 07:40 PM
Replies:
148
New Pontiac project
Views:
26,764
Posted By
darbikrash
So it was back to the dyno last Tuesday for round...
So it was back to the dyno last Tuesday for round 3 of the blower wars. This time I think we got a decent outcome and I am very happy with the results.
There were several differences and upgrades...
Forum:
EFI Tech
04-17-2024, 03:57 PM
Replies:
57
12-1 Crank Sensor Kits For Pontiac??? Crickets, Really?
Views:
6,066
Posted By
darbikrash
For the wiring, I started with Holley...
For the wiring, I started with Holley mini-harness P/N 558-431 and cutoff the 3 pin cam sync connector, replacing it with a 10 pin connector to plug directly into the dual sync. The provided crank...
Forum:
EFI Tech
04-17-2024, 01:37 PM
Replies:
57
12-1 Crank Sensor Kits For Pontiac??? Crickets, Really?
Views:
6,066
Posted By
darbikrash
The crank trigger is 4 magnet - so yes single...
The crank trigger is 4 magnet - so yes single pulse/fire is the correct software setting. Same as the out of the box dual sync, well sort of. The ECU reads the wired crank sensor from the custom...
Forum:
EFI Tech
04-17-2024, 12:13 PM
Replies:
57
12-1 Crank Sensor Kits For Pontiac??? Crickets, Really?
Views:
6,066
Posted By
darbikrash
https://live.staticflickr.com/65535/53660874035_d0...
https://live.staticflickr.com/65535/53660874035_d0a038326a_c.jpg
Forum:
EFI Tech
04-17-2024, 11:59 AM
Replies:
57
12-1 Crank Sensor Kits For Pontiac??? Crickets, Really?
Views:
6,066
Posted By
darbikrash
We experimented with coil dwell times between 4.0...
We experimented with coil dwell times between 4.0 msec and 5.0 msec. Didn't seem to make much difference so we set it at 4.5 msec and left it.
Forum:
EFI Tech
04-17-2024, 11:03 AM
Replies:
57
12-1 Crank Sensor Kits For Pontiac??? Crickets, Really?
Views:
6,066
Posted By
darbikrash
Just got off the dyno yesterday using the crank...
Just got off the dyno yesterday using the crank trigger setup shown in post #35 of this thread. The engine uses a Holley dual sync for the cam sensor. As we had problems with the dual sync crank...
Forum:
EFI Tech
04-07-2024, 03:50 PM
Replies:
57
12-1 Crank Sensor Kits For Pontiac??? Crickets, Really?
Views:
6,066
Posted By
darbikrash
I recently converted a dual sync setup to a...
I recently converted a dual sync setup to a dedicated crank trigger. I thought I'd post up a few pics on my setup.
I am using the dual sync now for cam signal only, with a COP/CNP 8 coil setup on...
Forum:
Pontiac - Boost
03-30-2024, 11:58 AM
Replies:
2
blown 434 with e85
Views:
954
Posted By
darbikrash
I’ll throw out some thoughts, not meant as...
I’ll throw out some thoughts, not meant as gospel, just a perspective.
I think it depends on the type of forced induction. For a turbo car, I’d think the higher compression/lower boost approach...
Forum:
THE LOBBY
03-29-2024, 07:35 PM
Replies:
148
New Pontiac project
Views:
26,764
Posted By
darbikrash
It’s a Bosch brushless electric water pump, flows...
It’s a Bosch brushless electric water pump, flows 6 Gpm.
Forum:
THE LOBBY
03-29-2024, 11:12 AM
Replies:
148
New Pontiac project
Views:
26,764
Posted By
darbikrash
You're exactly right, the idle bypass is open...
You're exactly right, the idle bypass is open anytime there is vacuum greater than 10" /hg. I have the vacuum modulator calibrated where it starts opening around 8.5"-9", and is fully open at 10"....
Forum:
THE LOBBY
03-28-2024, 05:32 PM
Replies:
148
New Pontiac project
Views:
26,764
Posted By
darbikrash
So a new dyno session has been scheduled and I...
So a new dyno session has been scheduled and I have made quite a few upgrades, and have some new things to test. For this next go around I am bringing two complete blower setups, the first as before,...
Forum:
THE LOBBY
03-28-2024, 05:08 PM
Replies:
148
New Pontiac project
Views:
26,764
Posted By
darbikrash
Yes, plenty of news, most of it good. I've been...
Yes, plenty of news, most of it good. I've been pretty busy with all this so here are a few updates.
I went back to the dyno after the failed Evolution lifters, I swapped out the lifters with...
Showing results 1 to 25 of 440
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