Found this posted on Facebook
https://docs.google.com/document/d/e...T-mm8HuhOb6CYA

 

Thanks for sharing! Interesting to see how well the Torker did since I've heard mostly negative on it. I'm running it on my 468 with some ported Gen 1 Ebrocks and FiTech TBI and I'm very happy with the power from 2000 - 6000 banging gears with my Tremec Magnum 6 speed. I know this was a stock 455 test but just happy to see some love for the Torker vs the normal negative comments.

Separately the results of the EDELBROCK O4B are really surprising too!

-Joe

 

That’s a lot of great information, thanks for posting it! I’ll be running a TBI on a torker on my new 455 build as well. It’s first fire will be sometime spring 2025…..can’t wait!

 

Thanks Berhard! Amazing that the ancient O4B performed so well.

 

there is a part 2 out now but i don't know how to link it here

 

I ran a 455 with a mild(ish) camshaft, O4B, long tube headers, comp roller tip rockers, 1 inch single hole spacer and an 800 cfm Q jet. I really liked the setup. Never had it dyno tested but I am not surprised either by the results.

 

Here's the link to part 2.
BIG BLOCK OLDS ENGINE DYNO TESTING PART 2 (1)

https://docs.google.com/document/d/1...PLmOMvhF3/edit

 

Thanks for posting part two Al

 

Some great info and comparisons ,will be a good read when i have more time .Thanks for posting

 

Wow. Thanks for posting these.

Wroblewski covers just about everything I've wondered about since the Gen 2 engines were new.

 

I would hope all the performance guys send these gearheads a few bucks, I've never seen all of this data in place. And apparently there is more to follow.

 

The manual transmission W30 camshaft performed well with this engine configuration, I'm not to surprised as there have been guys running well with this cam.

 

The factory 308/308 and 328/328 W-30 cams work well. I have always preferred them over aftermarket cams. The 328/328 W-30 cam was developed by Oldsmobile on the dyno. I think the 285/287 cam is good for heavier applications or on the street.

 

It would be cool to see the factory stocker cam that Oldsmobile developed tested, it has even more exhaust duration.

 

Man this is awesome, I can't wait for more.

 

So much information to take in.

Thanks again Bernhard and v8al. Had to come back to this one after seeing part 3, because I was wondering where part 2 was.

Interesting to see that plug indexing is a waste of time.

As well as definitive testing that backs up what we have been hearing for a long time. Regarding shorty headers.

"they look great. But if you are looking for horsepower, keep your W/Z manifolds, they will make more power."

And initial observation, unless I missed it they reference the fact that baseline testing was close but under in hp and a chunk below in torque to factory claim. But the factory's test and claim was done with full length open headers... So this test was actually more powerful, on the surface. Although the numbers at same rpm both with headers may be a match.

1970 W30 stick cam

Factory test 372 hp @ 4800 rpm F Heads full length headers
This test__ 364 hp @ 5000 rpm C Heads stock manifolds
headers____ 379 hp @ 5000 rpm C Heads full length headers

 

FYI - Part 3 was mentioned in this post: 455 Dyno test 3

Here's a direct link to part 3:
https://drive.google.com/file/d/1QGS...dtB0nbixw/view

 

As well, let's all thank the man who runs these tests at personal expense.

Send a thank-you to Jerry Wroblewski (jerry@tandjw.com).

And, in previous parts of this document, he asks that you all consider sending him consumables, lending some intakes, or directly help fund some of his remarkable undertaking at https://gofund.me/036234e0.

 

I can’t recall anybody in the last 20 years doing in depth, real world Oldsmobile engine dyno testing using most of the head, cam and exhaust combinations available.
This groups results should be a sticky at the top of CO site.

 

In addition to our thanks, he really can use china wall seals. I wish I had saved more but sending what I have.

 

There is a part 4 to this, already published. I have part 5 written but not yet published. I shy away from any of these kinds of public spaces for my own reasons. If one wants all these documents published here, just let me know what to do or who to send them to. They are not secret, they are for everyone to enjoy.

As of this typing we are 610ish dyno pulls in and I head back north tomorrow for 4-5 more days. I won't be done, but I hope to get close to being done.

Since I'm here now, ask any questions you want, I'll do my best to answer them. If you are near Michigan this weekend and want to help, we could certainly use it. I have a LOT of things I'd like to get done over the next 4 days but I'm not sure if three of us can get it all done.

jerry

 

Hi Jerry, I was wondering if any testing was going to be done with a 800 cfm Holley Spreadbore with mechanical secondaries? The comparison with the factory quadrajet would be interesting.

 

I would love to test one but we only have so many parts and we don’t have one of those. Quite a few people have let us borrow their parts. If you have one i will be happy to test it. But unless someone has one we can use I don’t expect to test one.

jerry

 

I sent you a pm.

 

Feel free to post anything you like.

 

FYI:
Part 4 is posted on C.O. in this thread: Dyno Testing Part 4
And Part 5 is posted in this thread: Dyno Testing Part 5