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Search took 0.04 seconds. Search: Posts Made By: darbikrash
Forum: THE LOBBY 04-22-2024, 04:50 PM
Replies: 115
Views: 12,186
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: 115
Views: 12,186
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: 115
Views: 12,186
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
Views: 3,011
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: 115
Views: 12,186
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
Views: 3,011
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
Views: 3,011
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
Views: 3,011
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
Views: 3,011
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
Views: 3,011
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
Views: 3,011
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
Views: 294
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: 115
Views: 12,186
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: 115
Views: 12,186
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: 115
Views: 12,186
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: 115
Views: 12,186
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...
Forum: Pontiac - Street 03-18-2024, 03:57 PM
Replies: 58
Views: 2,338
Posted By darbikrash
It's a blower motor which requires more spring...

It's a blower motor which requires more spring pressure than N/A.

The Evolution lifters are rated to 450#.
Forum: THE LOBBY 03-17-2024, 10:30 AM
Replies: 115
Views: 12,186
Posted By darbikrash
200# on the seat, 420# open.

200# on the seat, 420# open.
Forum: THE LOBBY 02-21-2024, 06:40 PM
Replies: 115
Views: 12,186
Posted By darbikrash
After all the testing is done, I'll likely put it...

After all the testing is done, I'll likely put it in my '65 GTO.
Forum: THE LOBBY 02-20-2024, 07:21 PM
Replies: 115
Views: 12,186
Posted By darbikrash
Dyno session was yesterday, at least part of it....

Dyno session was yesterday, at least part of it. Brought everything to Westech and had the N/A motor up on the dyno and ready to fire within about 90 minutes. As this is a brand new engine, the plan...
Forum: THE LOBBY 02-06-2024, 01:57 AM
Replies: 115
Views: 12,186
Posted By darbikrash
LoL. It’s like chicken pox. I think it’s...

LoL. It’s like chicken pox. I think it’s contagious as the other valve cover got them too.
Forum: THE LOBBY 02-05-2024, 06:23 PM
Replies: 115
Views: 12,186
Posted By darbikrash
I thought of that too. Maybe I'll reach out to...

I thought of that too. Maybe I'll reach out to him and see if he has an interest.
Forum: THE LOBBY 02-05-2024, 04:48 PM
Replies: 115
Views: 12,186
Posted By darbikrash
For sure, I'll be doing some video at the very...

For sure, I'll be doing some video at the very least.
Forum: THE LOBBY 02-04-2024, 05:49 PM
Replies: 115
Views: 12,186
Posted By darbikrash
I think I'm almost ready for the dyno session...

I think I'm almost ready for the dyno session coming in a couple of weeks.

The plan is to break-in the engine N/A, then switch over to the forced induction pulls. To accomplish this, I took a...
Forum: THE LOBBY 01-20-2024, 09:35 PM
Replies: 115
Views: 12,186
Posted By darbikrash
Getting ready for the dyno session next month at...

Getting ready for the dyno session next month at Westech. Today I pressure checked the fuel rails and wired up the injector harnesses. Packages pretty nice under the blower. The setup on the right is...
Showing results 1 to 25 of 431
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