I have a chance of a Blower intake for a 455. I have never built a Blower 455 engine so I was wondering if this intake is a good start. Here are some pics so you Blower guys let me know. Thanks Ron. For some unknown reason the pics won't load so I can send them on PM I hope.
IMO a waste of money, roots blowers are good for cruise ins thats about it, turbo or centrifugal are much more efficient
That's what I'm thinking. You pull up to the line with a 671 strapped down and ready to do business! Then they say "This is a Buick!" I just see fun if I can afford it. Look at Bob Mackley. That car was on it! I just found another Buick on PassTime I will post it on all Buick Muscle, Facebook.
definitely cool no question there , what Rod has is a wayyy different animal than boltn a 8-71 on a 500hp engine, those big blowers use 100hp just to turn , the new screw blowers on the other hand are as awesome as you can get but at around $14k they just for the big boys
Will the blower engine be for the street or strip or both? I'm assuming you are building with the stock iron block? Paul
I would love to drive it on the street but if I can't just drag racing. The block will have to have a girdle on it.
The reason I asked is; if you are racing only then injected methanol works really well with a roots type supercharger. We inject from the top (because of the our class rules) and the blower stays cold. Yes you can definitely drive it on the street with pump gas then switch to racing gas for the track. If you use a good flowing head with lots of attention to the exhaust side, 8 lbs of boost will get you all the power you need for the street. I had real problems finding a 455 block that would pass sonic testing for a turbo application. Cylinder walls are real thin on the sides between cylinders. At the request of the owner I sleeved the block down to 4.185" and had Diamond (By way of Jim Weise) make a set of custom 8:1 compression pistons. I suggest starting with a good thick wall 430 block. Paul
I have a 75 block and 455 blocks are getting hard to find since I have been looking for my .030 build of my old 10 second build pistons and rod combo. Then I heard of this intake and said instead if this piece of aluminum being a paper weight why don't I try to do something that I have wanted to do all my life. Build a Buick 455 with a blower and it works! Pontiac aftermarket rods I think it will last for a while right?
Yes Pontiac rods will work. Do you already have rods and pistons? What brand blower intake manifold? 75 and 76 blocks don't always have good wall thickness. Here is a 76 block I had tested. Notice cylinders #4 and #6
Looks like they are a little off center. I just tried to pull Bob Mackly you tube run and it's not there. Do you know why he pulled it?
Bobb's car was on a super soft tune for the Pass Time episode. The track was iffy at best. He runs an F2. Street duty would be ok for a mild blower setup but the threshold for the stock block comes really quick with a blower.
I haven't even bought the intake yet. I'm just tossing around the ideal. So the 70 forged pistons would be to much compression or can you use different pulleys to slow the blower down?
The blower drive ratio determines the horsepower so the question becomes: How much power do you want? A 6-71 small diameter blower on a 462 cid will be overdriven by 15% to give you 7-8 psi of boost Blown gas engines using roots type superchargers heat the intake air a lot so low compression ratios help keep detonation under control. It is not uncommon to have static compression ratios around 7.5:1 when using the smaller street cams. Here is a handy chart for a rough guideline for blown street application
Ron Is there any way to gets some pics of the intake you are looking at? Hampton will supply you with a complete set-up and has the best price. Here is what Jim Weise just posted about blocks for blown application. http://www.v8buick.com/showthread.p...d-live-to-tell-about-it&p=2357746#post2357746 Paul
