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Engine choice for fast bracket/Quick 8/16 car

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Old Jul 11, 2007 | 12:30 PM
  #76  
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Originally Posted by automotivebreath
Most Q16 events are bracket races, you need to have enough power to qualify in the field, then it's all about reaction times and consistency.
Originally Posted by rskrause
Yes, you just need to qualify. 7.50 should do it almost anywhere. Many
use a 0.3 second breakout rule, so it isn't strictly like typical brackets.
Rich
My interpretation of this (could be wrong) is the faster car gets a 0.3 second
advantage assuming the car is 0.3 seconds faster than the opponent. This is huge!

So if we have a 7.20 car running a 7.50 car, both cars could dial in 7.50 with
the quicker car being allowed to run no faster than 7.20. The slower car can
only win if the opponent makes a mistake, either late, can't run the number
or goes faster than 7.20.
Old Jul 11, 2007 | 01:32 PM
  #77  
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Originally Posted by thesoundandthefury
It's funny how the wind is blowing in the direction of a 6.0 LSx truck block engine.

When a very similar topic came up two years ago:

http://web.camaross.com/forums/showt...II+differences

Lo and behold, the very last post in that thread:

http://web.camaross.com/forums/showp...8&postcount=62

Probably not enough wall thickness in the bores to go large enough and hold the boost for a LS7 head on a 6.0L Iron block.

Bret
Old Jul 11, 2007 | 02:11 PM
  #78  
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Originally Posted by automotivebreath
My interpretation of this (could be wrong) is the faster car gets a 0.3 second
advantage assuming the car is 0.3 seconds faster than the opponent. This is huge!

So if we have a 7.20 car running a 7.50 car, both cars could dial in 7.50 with
the quicker car being allowed to run no faster than 7.20. The slower car can
only win if the opponent makes a mistake, either late, can't run the number
or goes faster than 7.20.
Your "dial in" is based on your qualifying time. Either a faster or slower car can sandbag.

Rich
Old Jul 11, 2007 | 04:57 PM
  #79  
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Originally Posted by SStrokerAce
Probably not enough wall thickness in the bores to go large enough and hold the boost for a LS7 head on a 6.0L Iron block.
ET Performance makes a 4.0" bore LS7 head. They only lost about 5cfm @.600 to the 4.125 bore version.
Old Jul 11, 2007 | 05:26 PM
  #80  
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I am more and more thining LSX block with some kind of blower. Probably with mimimally reworked LS7 heads for a starter.

Rich
Old Jul 11, 2007 | 07:22 PM
  #81  
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Good pick, LS7 heads out of the box with good prep work are worth more than most guys think!

Bret
Old Jul 11, 2007 | 09:16 PM
  #82  
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Originally Posted by rskrause

Your "dial in" is based on your qualifying time. Either a faster or slower car
can sandbag.

Rich
Thanks for the explanation.

Should make for some interesting racing. It may be wise to bring more than
you really need but leave a little in the bank during qualifying.

LSX with LS7 heads would be a good choice. I'm considering the same for
my new ride, chrome molly 69 Camaro.
Old Jul 11, 2007 | 09:57 PM
  #83  
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Originally Posted by SStrokerAce
A 1000hp 18° 565hp Big Chief from ReherMorrison is $18,500. If I was looking and wasn't an engine builder that's where I would get a BBC from. You still would have to adapt your EFI system over to that motor as well.

RPM is going to be a parts killer so boost or cubes is really the only answer here.

Bret
Got a bud who owns 565 Reher Morrison in a second Gen F-Body with two stages of nitrous with a glide whom races in the local King of the Hill 10.5 class. I rode in the golf kart towing his car to the line at the last Chevy Speculator held at Ennis which featured both King of the Hill and Pro Mods…. he wasn’t able to make the final 16 with a 5.09. Think the cutoff was in the high 4.7’s but I believe the weight cut is around 3200 lbs.

Super tuff class with the top 2-3 running 4.5’s @ 160 in the 1/8th and the guys up front have $70K just in the motors.

Rich…I wish ya luck homey!! Being rich helps a bunch if your playing with quick 8.
Old Jul 11, 2007 | 10:02 PM
  #84  
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Originally Posted by Denny McLain
Got a bud who owns 565 Reher Morrison in a second Gen F-Body with two stages of nitrous with a glide whom races in the local King of the Hill 10.5 class. I rode in the golf kart towing his car to the line at the last Chevy Speculator held at Ennis which featured both King of the Hill and Pro Mods…. he wasn’t able to make the final 16 with a 5.09. Think the cutoff was in the high 4.7’s but I believe the weight cut is around 3200 lbs.

Super tuff class with the top 2-3 running 4.5’s @ 160 in the 1/8th and the guys up front have $70K just in the motors.

Rich…I wish ya luck homey!! Being rich helps a bunch if your playing with quick 8.

Around here, 7.50 ought to do it. My buddy runs high six's (this is 1/4m, BTW) and is usually the quickest or second quickest qualifier when he runs. If they are spending that much on a motor to run at a local track for a few bucks, WTF is that about?

Rich

Last edited by rskrause; Jul 11, 2007 at 10:04 PM.
Old Jul 12, 2007 | 03:48 PM
  #85  
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After reading more into the LS7 heads.....if you can afford it that would be a pretty cool set up. More than capable
Old Jul 12, 2007 | 05:11 PM
  #86  
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Originally Posted by rskrause
Around here, 7.50 ought to do it. My buddy runs high six's (this is 1/4m, BTW) and is usually the quickest or second quickest qualifier when he runs. If they are spending that much on a motor to run at a local track for a few bucks, WTF is that about?

Rich
Everything is big in Texas. You should know that.

Seriously the local racing is killer! The best I’ve seen and I grew up going to US131 Dragway in Martin MI which was also noted for having top cars. Last year the ADRL had its world finals here @ Kennedale (local 1/8th mile track) if that gives ya an idea as to the local level of competition and most everyone knows about the NHRA fall championships at Ennis.

Afraid the Texas sun here has made the back of my neck a little red and I prefer the back-half cars and Pro Mods.. I’m like a 12 year old checking this stuff out as you'll see 732 Fulton’s, Buck’s and Hans Feustal or whatever high dollar motors in the back-half cars with big buck rigs towing them in. Someone’s making money here. The only half-way competitive Reher Morrison motored car (the shop is located locally even) I’ve seen is a C5 Corvette with a 622 nitrous motor in it and in the second season he’s finally getting it sorted out. He went “cheap” on the motor only spending $40K.

Think a few of the guys “sweeten the pot” a little with each other if you get the drift. You can usually tell by the amount of people standing at the starting line. Kinda like “Pinks” on steroids, only it’s heads up and for real.

Hey……Pro Mods are tomorrow night. Come on down and take advantage of a little southern hospitality. Not unusual to see a few 3 second runs on a typical Friday night racing program plus I cook as a hobby and have a killer Martini bar. You really didn't think I just made up that "posting drunk being a great sporting activity" did ya??

Last edited by Denny McLain; Jul 12, 2007 at 05:17 PM.
Old Jul 12, 2007 | 05:25 PM
  #87  
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Originally Posted by Denny McLain
Everything is big in Texas. You should know that.

Seriously the local racing is killer! The best I’ve seen and I grew up going to US131 Dragway in Martin MI which was also noted for having top cars. Last year the ADRL had its world finals here @ Kennedale (local 1/8th mile track) if that gives ya an idea as to the local level of competition and most everyone knows about the NHRA fall championships at Ennis.

Afraid the Texas sun here has made the back of my neck a little red and I prefer the back-half cars and Pro Mods.. I’m like a 12 year old checking this stuff out as you'll see 732 Fulton’s, Buck’s and Hans Feustal or whatever high dollar motors in the back-half cars with big buck rigs towing them in. Someone’s making money here. The only half-way competitive Reher Morrison motored car (the shop is located locally even) I’ve seen is a C5 Corvette with a 622 nitrous motor in it and in the second season he’s finally getting it sorted out. He went “cheap” on the motor only spending $40K.

Think a few of the guys “sweeten the pot” a little with each other if you get the drift. You can usually tell by the amount of people standing at the starting line. Kinda like “Pinks” on steroids, only it’s heads up and for real.

Hey……Pro Mods are tomorrow night. Come on down and take advantage of a little southern hospitality. Not unusual to see a few 3 second runs on a typical Friday night racing program plus I cook as a hobby and have a killer Martini bar.

Denny: I think you hit the nail on the head when you said about some people making money. That's not so true here in the high tax, lots 'o regulation, public employee union run, Hilary electing rust belt There are very few cars here you couldn't buy complete for $70,000, let alone motors. Like I said, my buddys car is about as fast as it gets for the locals and the whole car could probably be bought for $75-100K.

You serious about that invite? I have a business trip to Austin coming up sometime in the next few months - it hasn't been scheduled yet. I was thinking of staying around a few days. Martinis = good! And if combined with good food and some bench racing, that sounds like heaven. Plus, you have no income tax and don't have to wait a year and bare your soul before a judge to buy a gun!

Rich

Last edited by rskrause; Jul 13, 2007 at 04:54 AM.
Old Jul 12, 2007 | 07:20 PM
  #88  
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Originally Posted by rskrause
That's not so true here in the high tax, lots 'o regulation, public employee union run, Hilary electing rust belt.

Rich
Welcome to the Empire State!

Now for today's good NY news: 20% reduction in Worker's Comp premiums for employers. That means raises for my employees. Way to go Gov. Spitzer!

I'd sure like to sit around drinking with Den, Rich and even Bret, especially in TX.

Every time I walk past that shrink-wrapped blower-ready LT1 I think of the racin' Doc.

Other than the money, I really like the idea of a big NA LS7 with the horsepressure you are thinking about. How fast do you want to go $ ?
Old Jul 12, 2007 | 11:11 PM
  #89  
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Rich,
been there...done that..Wendy want's to spend some time at a Casino not far from Bob's soon...maybe I can deliver a test lung.

Dennis
Old Jul 12, 2007 | 11:29 PM
  #90  
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Originally Posted by OldSStroker
Other than the money, I really like the idea of a big NA LS7 with the
horsepressure you are thinking about. How fast do you want to go $ ?
7.50 NA LS7 @ 2000 LBS; how much are we talking? 50K, more?



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