[charlie66]

The smaller ci motors need more psi to make the equivalent power to the larger ci motors. Thats all tom is trying to say.. My 198 ci motor made 750 hp with 35 psi. But theres more to it then that. Like compatibility. Having the right size turbine wheel vs the amount of exhaust gases that will be spinning it to effectively get the most out of the compressor wheel for a given cubic inch .. I started out with a 76mm compressor wheel matted with a 67mm turbine wheel . Then i realized at 35 psi is was
all done . All it did after 35 psi was make heat ! Same thing these blowers are known for. So basically after that, went with a smaller commpressor wheel of 68mm and a larger turbine wheel 70mm . Now i was able to make more power with a smaller turbo on the same motor. The biggest concern i see with this blower on the street is keeping the heat out of the intake. If you can do that you will be able to keep it togther with AFR and timing . So E85 will be a good idea as long as you can keep the heat out. If you cant, the e85 will not be enough and it will detonate..11to1 with a blower sounds like a stretch to me.. An intercooled turbo setup ive seen it done..

[Tom Vaught]

Originally Posted by charlie66

The smaller ci motors need more psi to make the equivalent power to the larger ci motors. Thats all tom is trying to say.. My 198 ci motor made 750 hp with 35 psi. But theres more to it then that.

Wasting your breath Charlie, Can't help someone who knows it all.

Tom V.

ps Back on pistons and head gaskets.
Put the right pistons in your engine, sir, and run 9.0-9.2 compression ratio on the E-85 fuel
and you will be happy and the engine will give you a lot of enjoyment at lower boost levels..

[73 TRANSAM]

I think if ur compression is at 10to1 and u keep it at 6 lbs> I don't think it will be an issue. Eagle rods are not the best but there are a lot of people running then successfully. I like the L19 rod bolts but a lot don't like them either. I would put that together and enjoy the car. Just know your limitation and be conservative. Also E85 is a must at that compression or race gas.

[GTOGEORGE]

Originally Posted by charlie66

The smaller ci motors need more psi to make the equivalent power to the larger ci motors. Thats all tom is trying to say. But theres more to it then that. Like compatibility.

Thats also true with root blower engines. The smaller then engine the more boost you need to make up the difference in the cubes BUT without the rest of the parts to go along with more boost it won't be a happy engine.
What tom was trying to say was mumble jumble but it was getting late for him. lol!


GTO George

[Tom Vaught]

Originally Posted by GTOGEORGE

Thats also true with root blower engines. The smaller then engine the more boost you need to make up the difference in the cubes BUT without the rest of the parts to go along with more boost it won't be a happy engine.
What tom was trying to say was mumble jumble but it was getting late for him. lol!


GTO George

I decided to remove my comments to George vs screw up this mans thread.

Tom V

[GTOGEORGE]

Originally Posted by Tom Vaught

You sure do tell some funny stories (lies), George.
Problem is that is all they are. No real info in 99% of your posts.
But keep on posting, it is really funny to read your stuff.
One time you post you can make 20 psi with your supercharger.
In this thread you say. "With my small blower set up (compared to a 12-71 or 14-71) all I can make (boost wise) is 11.5 lbs and I have to spin it almost 30% over (which is a lot for a roots blower of that size) to do that," What happened to the 20 psi number you said your 8-71 blower would make George?

Tom V.

Performerrpm, take 99% of what George says with caution. He is old and can't remember what he posted in the past.
So he just make stuff up. Stick with Charlie66 and some of the other guys.

Tom, I’m sorry that you’re getting confused but you’re wrong on my info. There is only time one of my engines made 20 lbs of boost and it was on a Dyno...it has a smaller camshaft, less flowing heads and smaller tube headers. That was a long time ago that engine broke it had an IA block. This is a different engine, I’ve had this engine quite a while it has a better camshaft, better flowing heads and bigger tube zoomie headers, that all adds up to a better flowing engine and a lot less boost.... but on a plus side more HP!


GTO George

[Tom Vaught]

Originally Posted by GTOGEORGE

Tom, I’m sorry that you’re getting confused but you’re wrong on my info. There is only time one of my engines made 20 lbs of boost and it was on a Dyno...it has a smaller camshaft, less flowing heads and smaller tube headers. That was a long time ago that engine broke it had an IA block. This is a different engine, I’ve had this engine quite a while it has a better camshaft, better flowing heads and bigger tube zoomie headers, that all adds up to a better flowing engine and a lot less boost.... but on a plus side more HP! GTO George

Thanks for the new information George. So what was the HP number on the dyno when you were at 20 psi of boost George? The engine was telling you something, but happy that you finally figured it out.

Tom V.

[GTOGEORGE]

Originally Posted by Tom Vaught

Thanks for the new information George. So what was the HP number on the dyno when you were at 20 psi of boost George? The engine was telling you something, but happy that you finally figured it out.

Tom V.

It’s a secret if I told you............
It’s been posted before!
This engine I have now has never been on the Dyno only the dragstrip but it doesn’t have to be the ET speaks for themselves!


GTO Geirge

[GTOGEORGE]

Originally Posted by charlie66

The biggest concern i see with this blower on the street is keeping the heat out of the intake. If you can do that you will be able to keep it togther with AFR and timing . So E85 will be a good idea as long as you can keep the heat out. If you cant, the e85 will not be enough and it will detonate..11to1 with a blower sounds like a stretch to me.. An intercooled turbo setup ive seen it done..

Performer needs to run carbs (2 dominators) on his blower it would take care of the heat he might have in his entake or even blower that way the e-85 will cool everything! If he doesnt match the exhaust side.......headers........exhust pipes.....etc it won't matter any ways. Remember what you put in you need to get out....pretty simple.


GTO George

[charlie66]

Originally Posted by GTOGEORGE

Performer needs to run carbs (2 dominators) on his blower it would take care of the heat he might have in his entake or even blower that way the e-85 will cool everything! If he doesnt match the exhaust side.......headers........exhust pipes.....etc it won't matter any ways. Remember what you put in you need to get out....pretty simple.


GTO George

I never thought of it that way . Adding another carb to help with the intake cooling. Interesting..

I was wondering , has anyone ever tried putting a hat on a roots blowers carb with a intercooler and conected to it to see if it could draw through it ? If it could run maybe it would help it cool the air charge? lol.. If i had one id try it just to see... I would imagine that when those blades get spinning it would create a heck of a draw ..

[GTOGEORGE]

Originally Posted by charlie66

I never thought of it that way . Adding another carb to help with the intake cooling. Interesting..

I was wondering , has anyone ever tried putting a hat on a roots blowers carb with a intercooler and conected to it to see if it could draw through it ? If it could run maybe it would help it cool the air charge? lol.. If i had one id try it just to see... I would imagine that when those blades get spinning it would create a heck of a draw ..

Don't need an intercooler with e-85.


GTO George

[charlie66]

Originally Posted by GTOGEORGE

Don't need an intercooler with e-85.


GTO George

I needed one with my turbo combo.. .

[JSPONT]

Buy pistons, rods are fine, with a good bolt they will be fine to 1400 h.p. Guy with a turbo on YB been using them for years with even more h.p.

[GTOGEORGE]

Originally Posted by JSPONT

Buy pistons, rods are fine, with a good bolt they will be fine to 1400 h.p. Guy with a turbo on YB been using them for years with even more h.p.

Here we go........LOL!



GTO George

[JSPONT]

Originally Posted by GTOGEORGE

Here we go........LOL!



GTO George

Keep living in the dark ages George. You have the same junk for 20 years, there are pioneers pushing the envelope everyday. Not all the fast street cars have aluminum rods. And a lot of the street cars with those rods are faster than your race car.
You are like one of the old timers who still thinks 60-70 muscle cars were fast. Now a days an average car is faster than an old muscle car.

[GTOGEORGE]

Originally Posted by JSPONT

Keep living in the dark ages George. You have the same junk for 20 years, there are pioneers pushing the envelope everyday. Not all the fast street cars have aluminum rods. And a lot of the street cars with those rods are faster than your race car.
You are like one of the old timers who still thinks 60-70 muscle cars were fast. Now a days an average car is faster than an old muscle car.

Dark Ages?....20 years ago? Not likely, I HAVE/BUY the BEST parts for my race car, you can't go round....after round....after round racing and make up to 1,400 HP with Junk Parts. I LOVE racing and I can't race if my car is broke! The proof is in my race car! "Pioneers".........now thats FUNNY!
As for 60's and 70's race car..........$3,500 would buy you a FAST car that you could actually work on, NOW............$45,000 and a lot more!
You WIN!
GTO George

[Stan Weiss]

While the correct piston is the best answer. One can run two of the thinner heads and sandwich a machined spacer plate between them. I have seen this done / work with a 1/2" plate to raise the deck height.

Stan