8-71 10-71 12-71 blower?

Blackmagic94 · Sep 8, 2018

If you had a 548 tall deck with 9.3:1 compression what blower would you run and how much boost could you run on 91 octane at havasu elevation with a carb setup.

Richcat861 · Sep 9, 2018

I have a complete fuel injected quad rotor whipple setup in classifieds $7500.

1homeblown · Sep 9, 2018

Blackmagic94 said:
If you had a 548 tall deck with 9.3:1 compression what blower would you run and how much boost could you run on 91 octane at havasu elevation with a carb setup.

Factors need to be addressed. What are you using it for?
Are you running a chiller?
What preference do you have with regard to the age old debate of “spinning an 871 faster as opposed to a 1471 slower”?
Depending on the size of the blower, you may or may not need an offset drive?
If I were you, I’d get with a reputable engine builder and game-plan what you have and what you’re going to use it for then decide what’s best for your application.

Good luck with your build and keep us posted. More engine builds are what keeps some people coming back to these sights. [emoji1303]

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Dansblown73Nordic · Sep 9, 2018

Im running a 572 inch Bow tie block with Brodix Aluminum heads and a 14-71 with a pair of 1050 Dominators. Im running a 6 inch offset with a Vertex mag. This in a 20 ft Howard Day Cruiser. Makes about 6-8 psi of boost. I think it is actually under driven. I need to count the teeth. The top pulley is a 37 tooth. The bottom is kinda tuff to count on the motor. Stuffed up against the transom. This has a nice whine to it and the BLOWER SURGE makes the girls panties FALL OFF!!!!

Dansblown73Nordic · Sep 9, 2018

For fucks sake how do I post a picture on here?????

SBMech · Sep 9, 2018

Click upload a file.

1homeblown · Sep 9, 2018

Are you trying to post with a phone or computer?

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1homeblown · Sep 9, 2018

Gotta do that on your computer or phone before posting it. At least, that’s how I accomplish that.

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Dansblown73Nordic · Sep 9, 2018

Not to bad for all original gel coat.

Dansblown73Nordic · Sep 9, 2018

So now that I have that figured out lol

Dansblown73Nordic · Sep 9, 2018

If I was going to build this motor today. I would set it up with a crank trigger ignition. Then the size of the blower wouldn't matter. This runs super well. I can't take any of the credit for it. Ray Beers kept the boat stored in a garage since 1982. I was just lucky enough to be able to buy it from him two years ago. It was my dream boat that I watched run 111 back in 06 on a radar gun. I run it on premium 90 Ethanol free with 100LL mixed. It has aluminum Brodix heads. The funny part is it is pretty good on fuel for the most part.

MSum661 · Sep 9, 2018

Dansblown73Nordic said:
If I was going to build this motor today. I would set it up with a crank trigger ignition. Then the size of the blower wouldn't matter. This runs super well. I can't take any of the credit for it. Ray Beers kept the boat stored in a garage since 1982. I was just lucky enough to be able to buy it from him two years ago. It was my dream boat that I watched run 111 back in 06 on a radar gun. I run it on premium 90 Ethanol free with 100LL mixed. It has aluminum Brodix heads. The funny part is it is pretty good on fuel for the most part.

Crank Trigger is the only way to fly! Its always dead on.
If you match that up with a Front Drive Distributor you can also pick up a few Ponies by getting the traditional gear drive loads off the end of the cam.

Its good shit!

wsuwrhr · Sep 9, 2018

???

You need a distributor regardless.

Dansblown73Nordic said:
If I was going to build this motor today. I would set it up with a crank trigger ignition. Then the size of the blower wouldn't matter.

wsuwrhr · Sep 9, 2018

The load is driving an oil pump.

MSum661 said:
you can also pick up a few Ponies by getting the traditional gear drive loads off the end of the cam.

Its good shit!

4Waters · Sep 9, 2018

wsuwrhr said:
???

You need a distributor regardless.

You can run a coil on plug application

wsuwrhr · Sep 9, 2018

4Waters said:
You can run a coil on plug application

on a BB Chevy?

4Waters · Sep 9, 2018

wsuwrhr said:
on a BB Chevy?

Yep BBF as well, here is a mopar. This goes in place of the distributor.

wsuwrhr · Sep 9, 2018

I love the crank trigger setup on my 440. Fucker always fired instantly. Timing was dead nuts on the light.

wsuwrhr · Sep 9, 2018

Niiiiice. Be still my heart....Never seen that before. Trick idea.

Jesel/Indy heads....

Cant tell if it is a B or an RB, need to see the other side.

4Waters said:
Yep BBF as well, here is a mopar. This goes in place of the distributor.

View attachment 681426

Racey · Sep 9, 2018

wsuwrhr said:
on a BB Chevy?

Yes but you need a multi output ignition box, and a dual signal setup, usually a 4 tooth crank trigger and a single tooth on the cam (a gutted distributor works well and simple for this).

If you aren't doing efi i would stick to a dizzy, but moving the ignition trigger from inside the distributor to the end of the crank shaft has far better timing accuracy as it eliminates all the mechanical slop along with the fact that running a bigger diameter wheel (7-8" vs 2" diameter) means less deviation in the actual manufacturing accuracy, as thousands of an inch mean much more in degrees on the smaller pickup inside the distributor.

1homeblown · Sep 9, 2018

4Waters said:
Yep BBF as well, here is a mopar. This goes in place of the distributor.

View attachment 681426

Have any more pictures of the Chrysler? I’d like to check it out. [emoji1303]

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4Waters · Sep 9, 2018

wsuwrhr said:
Niiiiice. Be still my heart....Never seen that before. Trick idea.

Jesel/Indy heads....

Cant tell if it is a B or an RB, need to see the other side.

Here is a few others I found

wsuwrhr · Sep 9, 2018

Yea, mine uses the four magnet deal on the crank wheel and a distributor to send it. Circa 2000.

Racey said:
Yes but you need a multi output ignition box, and a dual signal setup, usually a 4 tooth crank trigger and a single tooth on the cam (a gutted distributor works well and simple for this).

If you aren't doing efi i would stick to a dizzy, but moving the ignition trigger from inside the distributor to the end of the crank shaft has far better timing accuracy as it eliminates all the mechanical slop along with the fact that running a bigger diameter wheel (7-8" vs 2" diameter) means less deviation in the actual manufacturing accuracy, as thousands of an inch mean much more in degrees on the smaller pickup inside the distributor.

wsuwrhr · Sep 9, 2018

Thats pretty trick. The shit you can learn here.

4Waters said:
Here is a few others I found

View attachment 681427 View attachment 681428 View attachment 681429

Racey · Sep 9, 2018

4Waters said:
Here is a few others I found

View attachment 681427 View attachment 681428 View attachment 681429

I bet i know a guy that has a machine shop and could make a billet cap for a distributor cam sync sensor

4Waters · Sep 9, 2018

wsuwrhr said:
Niiiiice. Be still my heart....Never seen that before. Trick idea.

Jesel/Indy heads....

Cant tell if it is a B or an RB, need to see the other side.

1homeblown said:
Have any more pictures of the Chrysler? I’d like to check it out. [emoji1303]

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https://www.forabodiesonly.com/mopar/threads/cnp-coil-near-plug-for-big-blocks.383251/

1homeblown · Sep 9, 2018

wsuwrhr said:
Thats pretty trick. The shit you can learn here.

Totally agree. Super trick. This is the kind of info that keeps me coming back to these sites. [emoji1303]

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wsuwrhr · Sep 9, 2018

I believe that.

Racey said:
I bet i know a guy that has a machine shop and could make a billet cap for a distributor cam sync sensor

wsuwrhr · Sep 9, 2018

IMA need a moment alone...

4Waters said:
https://www.forabodiesonly.com/mopar/threads/cnp-coil-near-plug-for-big-blocks.383251/

1homeblown · Sep 9, 2018

4Waters said:
https://www.forabodiesonly.com/mopar/threads/cnp-coil-near-plug-for-big-blocks.383251/

That’s so cool! Thanks for the link. [emoji1303]

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4Waters · Sep 9, 2018

wsuwrhr said:
Thats pretty trick. The shit you can learn here.

The first one is factory ford from a 1995-01 ford explorer with a 302cid

1homeblown · Sep 9, 2018

wsuwrhr said:
IMA need a moment alone...

LMAO

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4Waters · Sep 9, 2018

wsuwrhr said:
IMA need a moment alone...

So now that you have this knowledge are you going to step up and run a 14-71

1homeblown · Sep 9, 2018

Stack injected, big compression 426 Hemi with EFI in a Belvedere....things my dreams are made of.

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1homeblown · Sep 9, 2018

Sorry,
Off track. I won’t thread-jack.
Back to blowers!

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MSum661 · Sep 9, 2018

wsuwrhr said:
The load is driving an oil pump.

It also gets takes it off the valve train. Like I said....its good shit!

Only good IF your trying to eeeeeek out every ounce of HP

wsuwrhr · Sep 9, 2018

Crank trigger is good shit, no doubt. But the cam still needs to drive an oil pump unless you are using an external setup, and that is the load on the cam.

Mopars drive it off the timing chain side anyway, not the opposite end.

Mopar FTW!!!!

Brian

MSum661 said:
It also gets takes it off the valve train. Like I said....its good shit!

wsuwrhr · Sep 9, 2018

Ill need another moment, please.

I still need a 10-71 setup for a Chevy.

1homeblown said:
Sorry,
Off track. I won’t thread-jack.
Back to blowers! View attachment 681461

MSum661 · Sep 9, 2018

wsuwrhr said:
Crank trigger is good shit, no doubt. But the cam still needs to drive an oil pump unless you are using an external setup, and that is the load on the cam.

Mopars drive it off the timing chain side anyway, not the opposite end. Mopar FTW!!!!

Brian

I know all this.

wsuwrhr · Sep 9, 2018

Nah....looking for an easy 7-10 PSI. No need for race gas. UCH just wants to be into the 60s.

Brian

4Waters said:
So now that you have this knowledge are you going to step up and run a 14-71

MSum661 · Sep 9, 2018

wsuwrhr said:
Nah....looking for an easy 7-10 PSI. No need for race gas. UCH just wants to be into the 60s.

Brian

Did you check over at Good Vibrations?
http://goodvibesracing.com/blowers.htm

Racing Junk might have a few advertised
https://www.racingjunk.com/search?quickSearch=1&categoryId1=&searchString=10:71+supercharger

wsuwrhr · Sep 9, 2018

I wasn't looking real hard.

Something like that needs to be pretty local too.

Figured it would be a winter project at this point.

Ill check those links.

MSum661 said:
Did you check over at Good Vibrations?
http://goodvibesracing.com/blowers.htm

Racing Junk might have a few advertised
https://www.racingjunk.com/search?quickSearch=1&categoryId1=&searchString=10:71+supercharger

MSum661 · Sep 9, 2018

1homeblown said:
Sorry,
Off track. I won’t thread-jack.
Back to blowers! View attachment 681461

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Maybe you can B.S. Brian into making His thread into a "BlowerFest" thread instead.
That way everybody is covered..

wsuwrhr · Sep 9, 2018

Its all good the way it is goin.

MSum661 said:
Maybe you can B.S. Brian into making His thread into a "BlowerFest" thread instead.
That way everybody is covered..

Dansblown73Nordic · Sep 10, 2018

I was just thinking for the clearance issues. I didn't mean to get you guys all excited...lol

MSum661 · Sep 10, 2018

SoCalZero said:
View attachment 646774

Here’s my dads 14-71 with a chiller. MSD clears but a pain in the ass to get too. Cap and distributor can still be removed.

That is tight!! But hey...it flies!! Good!
Back in the mid 90's, we started testing chiller/ 14:71 Blown Gas combo results on the track at about 32-35 lb.s of boost.
Had to resort to an offset to make it work, the Mallory would not drop in any other way.
Same result rotating over to a PSI 206D using the same chiller and completely new blocks.

If and when another dealeo pans out with a new hull, the one configuration I really like go with is Alan Johnsons 481-X Chevy Motor.
The badass thing about His design is the Mag drops in similar to a Hemi, but, You can remove a cylinder head without pulling off the intake, supercharger/ injector, or the Mag and lift out a fuzzed up rod/piston in a pinch. Thats pretty damn cool.

LargeOrangeFont · Sep 10, 2018

wsuwrhr said:
on a BB Chevy?

Yep. My neighbor ran COP on his TT 468. All the wiring was hidden, it looked bad ass. Even had CO2 wastgate control.

rivrrts429 · Sep 10, 2018

8-71 10-71 12-71 blower?

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