1962 GMC 3-71 blower. K36 project

WickedWagens · Last edited by WickedWagens on Thu Dec 08, 2011 8:28 am; edited 2 times in total

Just a couple of teaser pics for my new project.

1962 GMC 3-71

Image may have been reduced in size. Click image to view fullscreen.

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68' Bug 1641 turbo. Soon to be 36hp powered.
68' Ghia 2276cc EFI turbo intercooled
72' Volksrod

RockCrusher · Posted: Fri Dec 02, 2011 5:25 am Post subject:

What are you going to put that on? You realize that about 1/2 the power the engine makes will be required to turn that? Like if the thing dynoes at 100hp the engine is actually making 200hp....just an example coz that varies depending on the amount of over or underdrive.

RC
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earthquake · Posted: Fri Dec 02, 2011 12:15 pm Post subject:

Is it going to look like this...
Image may have been reduced in size. Click image to view fullscreen.

[its a little fuzzy, I did not want to open it]

Casey
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36hplandspeedracer · Posted: Fri Dec 02, 2011 4:34 pm Post subject:

Or is it going to look like this?

Image may have been reduced in size. Click image to view fullscreen.

Burly

The Cheetle · Posted: Fri Dec 02, 2011 4:39 pm Post subject:

If Grueni will sell me his kit,you will have some competition this year!! Opps, I let the "cat out of the bag" oh well!!!
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WickedWagens · Posted: Fri Dec 02, 2011 10:50 pm Post subject:

I know it takes a lot to turn it, but I don't think it takes 50% power to turn it. My local expert said that the 3-71 takes about 50hp to turn it. The 2-71 would have to be over driven. This would create more heat. The 3-71 can be under driven and we can still let off extra air if needed. This thing is a beast. The real challenge is going to get it to fit. I have an idea for that though.
_________________
68' Bug 1641 turbo. Soon to be 36hp powered.
68' Ghia 2276cc EFI turbo intercooled
72' Volksrod

36hplandspeedracer · Posted: Fri Dec 02, 2011 11:17 pm Post subject:

Mark, will this photo help. This is the unit you see in the earlier photo and was created by Bob Newmire from Iowa (now Missouri) around 1968. He was going to run the puffer on the salt but in 68 Bonneville had a rainout.

Image may have been reduced in size. Click image to view fullscreen.

He did drag race it but split the case in tow with all of the power. The unit still exists!

Burly

grueni · Posted: Sat Dec 03, 2011 4:28 am Post subject:

WickedWagens · Posted: Sat Dec 03, 2011 10:26 am Post subject:

If Colton from Team Blackline is correct about what they found, it is possible to get 1699cc from a 36hp now. Our first version of the engine will be about 1550cc-1600cc.

grueni · Posted: Sat Dec 03, 2011 12:22 pm Post subject:

also a little more cc is possible with same tricks. i testet the 1700cc end of last winter on a head. somewhere i have the pictures of it but didn't posted it.

in a strange way also way more via stroked porsche crank is possible, but that cc is not needed in fact that the heads are the limit at the end and the goal had to be push the enegine to make the power as late as you can without loosing it. a too big bore or stroke will make more torque but kan let in fall on it's face earlier.

with that supercharger here you have different goals than max cc...if high end is your plan you should push as large valves in it as you can. thats an over the thumb rule. then your supercharger will make virtually your displacement. your should take him every break that rise boost...boost is not good, boost is the brake of the air that want into your heads and it comes from manifold diameter, valvesize, port, cam lift and cam duration and if your chamber is full, than at the end from your displacement but how i told the breakes are at first in all that other parts.

but first question? how want you fit that thing with k36 rules...i thought generator and cooling have to stay in place.

wishes
chris
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1956 oval 1192cc 36hp Supercharged 70HP at 3900RPM / 150NM at 2000RPM @ 13 psi

1960 1641cc Twin scroll turbocharged, intercooled @17 psi 318nm/3430rpm 160hp/4790rpm
with cb2280 cheater cam 222°@ 0.05"

blacklineracing · Posted: Sat Dec 03, 2011 7:34 pm Post subject:

Richard Troy brought a 1700 out to bonneville this year I believe. We are building a 1700 WW okrasa engine for a customer now.

grueni · Posted: Sat Dec 03, 2011 7:50 pm Post subject:

Typ1 pistons?
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1956 oval 1192cc 36hp Supercharged 70HP at 3900RPM / 150NM at 2000RPM @ 13 psi

1960 1641cc Twin scroll turbocharged, intercooled @17 psi 318nm/3430rpm 160hp/4790rpm
with cb2280 cheater cam 222°@ 0.05"

blacklineracing · Posted: Sat Dec 03, 2011 10:12 pm Post subject:

Yep, 85.5mm type 1 p&c.

splitpile · Posted: Sat Dec 03, 2011 10:16 pm Post subject:

1700cc shouldn't be hard. I think I'm getting a Bridgeport mill next week so let the machine work begin, going to be a good year at WOS 2012.

Short stroke, big pistons, same size intake exhuast, supercharger Think

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36hplandspeedracer · Posted: Sun Dec 04, 2011 7:49 am Post subject:

Looks like everyone is having fun ! The 2011 Wolrd of Speed story in Hot VW's has gone to press and should be in your mailbox around December 28th.

This is going to be a great way to start off the new year!

Burly

The Cheetle · Posted: Sun Dec 04, 2011 9:10 am Post subject:

Got Januarys edition yesterday with Ronnies(splitpile) single cab as the "preview" picture!!! Looked great!!
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Save the Salt!!

splitpile · Posted: Sun Dec 04, 2011 11:49 pm Post subject:

grueni · Posted: Mon Dec 05, 2011 7:13 am Post subject:

Mr. Motorhead · Posted: Mon Dec 05, 2011 9:37 am Post subject:

bajamike560 · Posted: Thu Dec 22, 2011 2:02 pm Post subject:

Any updates?

Mike
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Jackpot motorsports

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