Author Topic: Selling a Buick and getting a 426  (Read 8473 times)

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Offline motorhead

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Re: Selling a Buick and getting a 426
« Reply #15 on: September 22 2012, 01:13:51 PM »
He know what he has to do...what he is trying to do is to run as much timing as possible without detonation...h ence the alky :)

I get that, and I understand that he is a smart man... I just find it odd to use alcohol injection on a N/A motor when the gains will be minimal at best assuming good fuel and proper timing/enrichment is used.
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Offline Steve Wood

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Re: Selling a Buick and getting a 426
« Reply #16 on: September 22 2012, 01:28:27 PM »
20-30 hp is about the best one can hope for, but, one can bump the timing further and assure ambient conditions don't bite.

I ran alky on a bbc back in the '80s with good success altho it was crude by todays standards.   Now you can tie it to DC and cool down the charge air quite a bit

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Offline larrym

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Re: Selling a Buick and getting a 426
« Reply #17 on: September 22 2012, 06:23:34 PM »
I'm surprised more guys don't spray alky for NA applications especially with higher compression motors and modern pump gas.


Been trying to talk a buddy into trying it on his bottle fed 383 stroker.



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Offline Steve Wood

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Re: Selling a Buick and getting a 426
« Reply #18 on: September 22 2012, 06:27:47 PM »
It's not all that cost efficient unless you are trying to run close to the edge in my opinion.  It works, but you don't gain a 100 hp

On the other hand, look at what guys spend for a set of headers to get 9 hp...so maybe it is cost efficient but is simply not well understood by the na guys
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Offline motorhead

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Re: Selling a Buick and getting a 426
« Reply #19 on: September 22 2012, 07:31:37 PM »
Not everyone walks the beaten path

Don't I know it.

I'd say he'd love an E85 conversion to realize the full potential of that 426. Again that has its limitations, and everything has its compromises.
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Offline nocooler

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Re: Selling a Buick and getting a 426
« Reply #20 on: September 22 2012, 10:26:53 PM »
Sounds like that thing needs gears and a cam in the 250-260 duration range  :rock:
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Offline Steve Wood

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Re: Selling a Buick and getting a 426
« Reply #21 on: September 22 2012, 10:42:41 PM »
rods and valve train won't handle that rpm

At least one guy running 10.8 on 3.06's and he apparently tried them all shifting at 6800
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Offline nocooler

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Re: Selling a Buick and getting a 426
« Reply #22 on: September 23 2012, 12:10:58 PM »
Really.....wow .

Makes me like my LS even more. Now with some luck the clutch that they send me will shift at WOT. Waiting for the flywheel to be machined again and then it need a few hundred miles break in on it  :013:

I'd like to see a mid/high 10 @ 128-130mph yet this year.
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Offline Steve Wood

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Re: Selling a Buick and getting a 426
« Reply #23 on: September 23 2012, 01:40:36 PM »
I would think you would like something that you could cruise all day in and still go fast in the quarter?

The automatics have some pretty stiff gear ratios and add a good converter to that and you don't need all that gear like a stick
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Offline nocooler

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Re: Selling a Buick and getting a 426
« Reply #24 on: September 23 2012, 02:44:47 PM »
Double over drive fixes the cruise issue.....75 mph at 1800rpm is fine with me.

Some day it'll get a 4l80e - but not right now.
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Re: Selling a Buick and getting a 426
« Reply #25 on: September 24 2012, 08:20:29 AM »
I am waiting on getting a 6L80E or 90E conversion for Natasha's Camaro... what an amazing piece of engineering! Someone just needs to create a stand-alone control box or an OS conversion for HPTuners.

Either that or we'll just dump the Camaro and get a CTS-V next year.
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Offline Old Buzzard

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Re: Selling a Buick and getting a 426
« Reply #26 on: September 28 2012, 03:10:36 PM »
A REAL HEMI.........5 30" of it! :icon_madu:
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Offline $1987 GN$

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Re: Selling a Buick and getting a 426
« Reply #27 on: September 28 2012, 04:15:56 PM »
A REAL HEMI.........5 30" of it! :icon_madu:



Nice Chuck yours?
Whats under the filters size wise?

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Offline SuperSix

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Re: Selling a Buick and getting a 426
« Reply #28 on: September 28 2012, 06:23:53 PM »
Probably some throttle bodies - it's fuel injected.
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Offline $1987 GN$

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Re: Selling a Buick and getting a 426
« Reply #29 on: September 28 2012, 06:32:44 PM »
Probably some throttle bodies - it's fuel injected.

Yes; I was curious as to the size and  the distance, diameter  etc was. Hence could figure out some of the data.


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