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Stroked. Blower, heads and E85?

Started by Reidar, June 26, 2008, 08:57:00 AM

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Reidar

Hi guys!
Im building a engine im going to use for dragracing.
Its a 360 block with a strokerkit and "60 over resulting in a 415 cid.

Now im thinking about the top part of the engine. The first plan was to use a tunnelram-intake, but now im dreaming of a blower!
As fuel i wish to use E85.
Does anyone have any recomandations as to witch blower and what kind of heads i should use?
I guess i need heads that gives the engine about 8:1 comp, and flows a lot of air?

Regarding the blower i have considered Hampton blowers, but have heard some negative comments about them lately..
Any other brands that will work?

What will you guesstimate this engine will put out with a blower?

Thanks for any advice! :)

Blown70

Littlefield or Kobelco  those are the two BEST ones I can tell you about.  GOT A LOT OF MONEY?  PSI.

The Blower Shop is also very good.

DONT WANT NEW.... check with this company www.rbssuperchargers.com  VERY GOOD and NICE to deal with.  Save you a lot of NEW.

PERSONALLY I would not touch a BDS, (my own reasons)  I will not bash in public.....

Also, you can run a higher static than that if you wish or Just run the supercharger harder.  Pulling truck here is running 42% overdrive FCR or 19:1 on Methanol.

HP, I would expect if tuned correctly 750-800 which would be the limit of your block, consider running a girdle.

Reidar

Hi Blown70!

Thanks for your advice.

I must say im new to blowers, so i have some more questions..
Checked out Littlefields website and it looked like they have a good selection. Just to bad they dont have a complete kit.
What size do you recomend for my engine? I was thinking Littlefield Case 10-71. But whats the difference between  Gas Standard (cast rotors), Comp (cast rotors), Billet Rotors (std or helix) and Retro?
And what more do i need? Blower Snout and Blower Manifold?

What is a girdle?


Blown70

Quote from: Reidar on June 26, 2008, 09:24:44 AM
Hi Blown70!

Thanks for your advice.

I must say im new to blowers, so i have some more questions..
Checked out Littlefields website and it looked like they have a good selection. Just to bad they dont have a complete kit.
What size do you recomend for my engine? I was thinking Littlefield Case 10-71. But whats the difference between  Gas Standard (cast rotors), Comp (cast rotors), Billet Rotors (std or helix) and Retro?
And what more do i need? Blower Snout and Blower Manifold?

What is a girdle?


Girdle keeps your main caps from "walking" under high loads/rpm.  It bolts to the main cap area, I will see if I can find you a pic.

I don't know if you need more than 6- or 8/71 for what you have.  Although it just means you can run the supercharger slower to get the same BOOST if you have a bigger one example 14/71, could be run about 1/2 as fast as a 6/71 to get the same boost but you will want it set for ALCOHOL or nitro which means tigher tolerances.

You will see most comp blowers have billet, but can use cast or HARD annodized.  Also, the teflon stipping will be important for your application.

You will need an intake manifold, blower snout, tensioner, belt, also if you plan to run accesories, like alternator, or power steering or water pump ( I would sugget electric)


WILL THIS CAR SEE THE STREET AT ALL?

mally69

This is my 512 and this is what a girdle looks like. It ties the main caps to the block to keep from having cap walk which occurs when you run alot of RPM and when you have high HP and TQ numbers.

Blown70

Quote from: mally69 on June 26, 2008, 10:14:03 AM
This is my 512 and this is what a girdle looks like. It ties the main caps to the block to keep from having cap walk which occurs when you run alot of RPM and when you have high HP and TQ numbers.

Thanks for posting I couldt find a nice pic of one.

Also here is METAL STORMS car  Take a look at this.

http://www.dodgecharger.com/forum/index.php/topic,44696.msg491786.html#msg491786

He is running "the blower shop" supercharger and intercooler....

Reidar

I see! :)

There are not much difference in the price for a 10-71 and a 8-71, and if i decide to move up to a bigblock dont the line, its not bad to have a big blower is it? ;)

Ive sent a mail to Littlefields asking for specs and the price on a complete setup.

Should probably run the alternator and powersteering.. Not sure yet.

It will see very little street, but i was hoping to keep it registered so i can race it also in the streetlegal-classes.

Blown70

Quote from: Reidar on June 26, 2008, 10:19:39 AM
I see! :)

There are not much difference in the price for a 10-71 and a 8-71, and if i decide to move up to a bigblock dont the line, its not bad to have a big blower is it? ;)

Ive sent a mail to Littlefields asking for specs and the price on a complete setup.

Should probably run the alternator and powersteering.. Not sure yet.

It will see very little street, but i was hoping to keep it registered so i can race it also in the streetlegal-classes.

I would go with the 10/71  Mert Littlefield is great to speak to on the phone too.

Reidar

I see you too are planning to use E-85! Thats cool!

I know we need to use a special kind of carb (bigger jets++) when using alcohol, and that we cant use any rubber since alcohol eats rubber, but is there anything else i need to be aware of?

Blown70

Quote from: Reidar on June 26, 2008, 10:35:03 AM
I see you too are planning to use E-85! Thats cool!

I know we need to use a special kind of carb (bigger jets++) when using alcohol, and that we cant use any rubber since alcohol eats rubber, but is there anything else i need to be aware of?

No special carb required (other than basic choke horn removal for the supercharged set-up), you will need to run .6 times more fuel, than regular gas.  Methanol requires 2x.  Ethanol 1.6 times.

you thought of mechanical injection for the supercharger?


Reidar

Quote from: Blown70 on June 26, 2008, 10:53:05 AM

No special carb required (other than basic choke horn removal for the supercharged set-up), you will need to run .6 times more fuel, than regular gas. Methanol requires 2x. Ethanol 1.6 times.

you thought of mechanical injection for the supercharger?



Im not sure yet. Trying to find out as much as possible before i make my desicion.
Just trying to get the most bang for each buck! ;)

1974dodgecharger

did you decide yet?
Quote from: Reidar on June 26, 2008, 11:01:04 AM
Quote from: Blown70 on June 26, 2008, 10:53:05 AM

No special carb required (other than basic choke horn removal for the supercharged set-up), you will need to run .6 times more fuel, than regular gas. Methanol requires 2x. Ethanol 1.6 times.

you thought of mechanical injection for the supercharger?



Im not sure yet. Trying to find out as much as possible before i make my desicion.
Just trying to get the most bang for each buck! ;)