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Search found 1282 matches

by vortecpro
Mon Jan 25, 2021 8:41 am
Forum: Engine Tech
Topic: 427 Build And Drag Test
Replies: 33
Views: 2013

Re: 427 Build And Drag Test

The converter has been changed, same gears, will run in high altitude first then makes some changes and go down low.
by vortecpro
Sat Jan 23, 2021 9:51 pm
Forum: Engine Tech
Topic: 427 Build And Drag Test
Replies: 33
Views: 2013

Re: 427 Build And Drag Test

Ready to race-smooth idle 427.
by vortecpro
Wed Jan 13, 2021 8:05 pm
Forum: Engine Tech
Topic: 427 Build And Drag Test
Replies: 33
Views: 2013

Re: 427 Build And Drag Test

Larry Its great having your friend Harold building Q-Jets for me, I think he's really making some headway with these carbs. Below is the data from the same car/engine in Kearney Neb 2130 Elevation 3500 DA, I hesitated to post this because I had a flat spot in the carb on the launch/hesitation that w...
by vortecpro
Wed Jan 13, 2021 9:53 am
Forum: Engine Tech
Topic: 427 Build And Drag Test
Replies: 33
Views: 2013

Re: 427 Build And Drag Test

by vortecpro » Tue Jan 12, 2021 8:30 pm Larry I've run 11.04 @ Denver with my peanut port in this Chevelle, here were the numbers I remember: 1.44 6.86 11.04 @ 118 Same setup @ Pueblo: 1.42 660 ? 10.90 @ 119 some NHRA ET Slip info from my Database : SS/KA 1.493 4.385 6.861 99.27 9.029 10.889 120.17...
by vortecpro
Wed Jan 13, 2021 9:22 am
Forum: Engine Tech
Topic: 427 Build And Drag Test
Replies: 33
Views: 2013

Re: 427 Build And Drag Test

Yes, right now my air T has a ring on it for testing 4150 carbs. I don't bother to set the date on my dyno, it has a default setting. Maybe I can take a picture of my Turbine setup and post. Hers a picture you can see the ring on the bottom of the turbine. One other thing I'd like to point out to Y...
by vortecpro
Tue Jan 12, 2021 9:30 pm
Forum: Engine Tech
Topic: 427 Build And Drag Test
Replies: 33
Views: 2013

Re: 427 Build And Drag Test

Thanks-not sure about that 120 mph though. for a 11.000 ET it could Run these times/mph : 60= 1.472064 43.381176 330= 4.407033 78.812857 660= 6.923479 97.181471 1000= 9.121505 111.648284 1320= 11.000000 119.531990 ..... pretty close to 120.00 MPH Larry I've run 11.04 @ Denver with my peanut port in...
by vortecpro
Tue Jan 12, 2021 9:27 pm
Forum: Engine Tech
Topic: 427 Build And Drag Test
Replies: 33
Views: 2013

Re: 427 Build And Drag Test

bob460 wrote: Tue Jan 12, 2021 6:24 pm I would like to know how you pick best converter and gears in this low rpm build.
I really need to think about this, I will let you know.
by vortecpro
Tue Jan 12, 2021 9:26 pm
Forum: Engine Tech
Topic: 427 Build And Drag Test
Replies: 33
Views: 2013

Re: 427 Build And Drag Test

Nice. Other than weight, those gm cast highrise intakes weren't that bad compared to some aftermarket intakes. I liked the square carb pattern better tho. Are you going to run the cast exhaust for the full sleeper effect? Yes its heavy........this build was about using parts I had lying around that...
by vortecpro
Tue Jan 12, 2021 8:51 am
Forum: Engine Tech
Topic: 427 Build And Drag Test
Replies: 33
Views: 2013

Re: 427 Build And Drag Test

Have you ever run a QJet with your air bonnet on? The 2006 date on the dyno sheet is interesting. Yes, right now my air T has a ring on it for testing 4150 carbs. I don't bother to set the date on my dyno, it has a default setting. Maybe I can take a picture of my Turbine setup and post. Hers a pic...
by vortecpro
Tue Jan 12, 2021 8:40 am
Forum: Engine Tech
Topic: 427 Build And Drag Test
Replies: 33
Views: 2013

Re: 427 Build And Drag Test

My427stang wrote: Tue Jan 12, 2021 8:30 am Clearly working well to make that power with a "baby" cam. I may have missed it, but where did you end up for .006 overlap and resulting idle vacuum?
The idle vacuum @ 780 RPM was 14.8 inches @ 6388 feet elevation, I think it will go 19-20 down low. Dead smooth idle @ 780 RPM.
by vortecpro
Tue Jan 12, 2021 8:37 am
Forum: Engine Tech
Topic: 427 Build And Drag Test
Replies: 33
Views: 2013

Re: 427 Build And Drag Test

Nice. Other than weight, those gm cast highrise intakes weren't that bad compared to some aftermarket intakes. I liked the square carb pattern better tho. Are you going to run the cast exhaust for the full sleeper effect? Yes its heavy........this build was about using parts I had lying around that...
by vortecpro
Tue Jan 12, 2021 8:24 am
Forum: Engine Tech
Topic: 427 Build And Drag Test
Replies: 33
Views: 2013

Re: 427 Build And Drag Test

No, it will have headers, 2 inch Hookers. For those interested observed or uncorrected or "in the room HP" was 361 @ 6388 Elevation, 23.76 baro. Another picture.
by vortecpro
Tue Jan 12, 2021 8:09 am
Forum: Engine Tech
Topic: 427 Build And Drag Test
Replies: 33
Views: 2013

Re: 427 Build And Drag Test

vortecpro wrote: Tue Jan 12, 2021 8:08 am
Monza355 wrote: Tue Jan 12, 2021 6:29 am Interesting for sure ! Did you dyno test the engine after the build ?

How’s the car going to be set up. Transmission. Gearing. Converter etc.. ?
I'am still thinking about that.
by vortecpro
Tue Jan 12, 2021 8:08 am
Forum: Engine Tech
Topic: 427 Build And Drag Test
Replies: 33
Views: 2013

Re: 427 Build And Drag Test

Monza355 wrote: Tue Jan 12, 2021 6:29 am Interesting for sure ! Did you dyno test the engine after the build ?

How’s the car going to be set up. Transmission. Gearing. Converter etc.. ?
by vortecpro
Tue Jan 12, 2021 8:05 am
Forum: Engine Tech
Topic: 427 Build And Drag Test
Replies: 33
Views: 2013

Re: 427 Build And Drag Test

Thanks-not sure about that 120 mph though. nice build pictures ! are you going to Dyno test your Engine before you install it in your Chevelle ? do you "stake" the Cam sprocket at the Cam degree bushing hole ? or is there a small outer lip edge on the bushing hole preventing possible degree bushing...