496 to be DYNO'D!

[Vortecpro]

Originally Posted by moggey01

What Hot street class are you talking about? I know NMCA had it and switched the name for the N/A class. Just curious we ran that stuff with a 318 engine and a 5 speed.

USSP Hot street.

[Vortecpro]

Originally Posted by gearys 5600

sign me up for a steel headed 9-1 comp, small cam, 496 that makes 700 H.P.

Sounds like I wasted a ton of money bulding my 496 !! 13.5 to 1 comp, brodix cnc'd bb2 extras, big solid roller, super victor,1150 dominator that made a little over 800 h.p.

I cant sign you up, I dont have 9.1 comp 700 HP steel headed engines, but I do have 9.5-9.6 comp, hyd roller, 238@.050 steel headed engines making 670 HP.

[Super73]

Mark,

I don't see more than one guy really calling you out on your numbers. With that, you need to have Harold Bettes come down and verif everything?

If you took my post as doubting your abilities, then you need to go back and read it again. I was forming my guess based on the info provided and the tools I had. Don't let my love for the LS based motors rain on your parade, there is still a market for big blocks, just not in my stuff.

You seem a little quick to get defensive, but hey, I can understand taking things personal at times.

[Vortecpro]

Originally Posted by Super73

Mark,

I don't see more than one guy really calling you out on your numbers. With that, you need to have Harold Bettes come down and verif everything?

If you took my post as doubting your abilities, then you need to go back and read it again. I was forming my guess based on the info provided and the tools I had. Don't let my love for the LS based motors rain on your parade, there is still a market for big blocks, just not in my stuff.

You seem a little quick to get defensive, but hey, I can understand taking things personal at times.

No, it not a problem, I get this all the time, I dont mind it, the thing with me is, I have customers at the track that do all my speaking for me, the proofs in the performance, and I got a lot more examples dont change, your good with me Harold comes down almost everyday anyway. 10.8 COMP 496 gm oval ports 9.56 @ 3615-3630 first full pass 32 dgrees timing, stay tuned.

[69GMC910]

That is one bada$$ velle!
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[C20-67_N_MO]

Originally Posted by C20-67_N_MO

Not going there at all.

SBC forever!

I've been curious as friends of mine (and me at times) have stated it will cost more to build a hot BBC than a SBC.

Now I am not trying to hijack this thread so don't tak offense. As I know there is no replacing Displacement on CI.

As I know the BBC make some Monster torque numbers. Okay let me just end this here. Cuz I could make a new thread of BBC vs. SBC and most would go towards the BBC.

I was just wondering aloud while at work.

[RatPwrd72]

Cubic dollars is what it takes to go fast, and they sure go alot farther when building a BBC than they do building a SBC or LS based engine.

[gearys 5600]

Originally Posted by Vortecpro

Generally this is where I would go into defensive mode, BUT, I did see the picture of your beautiful L78 camaro and I do believe you do deserve some respect. The 800 HP oval port 11.5 compression engine has not been down the track yet, my customer will have runs on it coming up this spring. To me, I like to know the (racing background) of the people questioning my dyno numbers. So I think its only fair I state my background. I machine and build and test my own engines, everything is machined in house with the crankshaft as an exception. 1. Two strait hot street championships (550 inch NA 10 inch tire 3350 pounds) both ends of the records, won every race except for 1 over a two season span, as an engine builder. 2. The fastest full weight, small tire, oval port (GM) production blocked chevelles in country come out of my shop. 3. Just for you I have an example of a Vortecpro powered 468 NA camaro, I think you just might be able to identify with. NA 468 9.40 @ 142.40 1.28 60 on the foot brake @ 1670 feet DA @ KCIR. BTW on that dyno you questioned the HP of, it made (the 468) 45 less hp than yours, 795 HP. Happy reading

Dont get in your defensive mode..Sounds like you have had some fast cars,you never know when a keyboard racer is just bumping there gums.

I have had friends show me dyno sheets with big numbers and the car wouldnt run anywhere close to the number it should have.

Thanks for the compliment on my old camaro, I had a 582 bbc,13.5-1 comp,cfe 385 bmf heads,single carb, N/A that dyno'd 1133 H.P built for that car and never got to put it in. That would have been fun !! One of these days I am going to build another hot rod and I may look you up for a powerplant. Geary

[Vortecpro]

Originally Posted by gearys 5600

Dont get in your defensive mode..Sounds like you have had some fast cars,you never know when a keyboard racer is just bumping there gums.

I have had friends show me dyno sheets with big numbers and the car wouldnt run anywhere close to the number it should have.

Thanks for the compliment on my old camaro, I had a 582 bbc,13.5-1 comp,cfe 385 bmf heads,single carb, N/A that dyno'd 1133 H.P built for that car and never got to put it in. That would have been fun !! One of these days I am going to build another hot rod and I may look you up for a powerplant. Geary

Thanks Geary! I know theres a lot of BS out there. Im a sucker for L78 cars, send me an email I would like to send you some pictures of Daves ZL1.

[shawnt]

Just an FYI.

On the.9.56 pass and the pass with the maroon camaro with the 468. I was there for both of those passes as we rented the track. None of this is bull****.
The 9.56 was off the trailer and the 3rd pass ever on the motor. He also pedal'd that pass because the wheelie went a little higher than he wanted.
Garrets 468 is a bad little mofo!
The red chevelle should go high 20's low 30's when ironed out.
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[69GMC910]

Engine was dyno'd yesterday. I should have copies of the results tonight! The numbers are good.... Really good!
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[GMR-PERFORMANCE]

Congrats!!! I wanted to put mine up but had a few issues with the guys doing the work.. thus I will break the engine in and then have it put on a drum and I will have what really gets to the pavement.. I wish had a crank number as well though.. jealous HA HA

[Blue Rat]

I was hoping to see the numbers before I go to bed. Maybe I wake up an check around 1 or 2am.

[Super73]

Patiently waiting to see how far off performance trends was with my guess work. By the sound of it, quite a bit.
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[Blue Rat]

Originally Posted by Super73

Patiently waiting to see how far off performance trends was with my guess work. By the sound of it, quite a bit.
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Looks like I am going to bed again with out seeing the numbers. Oh well.

[69trk]

I say 733hp

[Vortecpro]

Originally Posted by Super73

Patiently waiting to see how far off performance trends was with my guess work. By the sound of it, quite a bit.
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Jerrods results. 496, 9.9 compression, 238@.050 hyd roller, AFR 265 heads, 850 holley.

[Vortecpro]

Originally Posted by Vortecpro

Jerrods results. 496, 9.9 compression, 238@.050 hyd roller, AFR 265 heads, 850 holley.

Sorry about the poor pictures.

[69GMC910]

Thank you Mark! I can't wait to yank out the small block and drop this monster in its place!
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[Super73]

Not too shabby at all...

[mud.man.rj]

Very nice, looks like a parts breaker for sure, fun all day.

[69GMC910]

Trying to build everything strong the first time! If I succeed, it will still be a neck snapper though!!! \m/ \m/
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[69GMC910]

It's a few months away, but the first track outing is slated for June 8/9th in Medicine Hat, Alberta!
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[GMR-PERFORMANCE]

I dyno here but it is a rear wheel dyno for harleys. I have a question on the AFR that is showing on the sheet. Is there a reason that its running so rich?? Or was that where they set it as it made the most power there, or ran cooler, Most will run in the 13.0 range to 13.5 and run cool to make the best power.. Not stirring the pot only asking. To me that seems too rich.

[77BBGMC]

Nice numbers!