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What do you consider low H/C #'S

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Old Jun 21, 2006 | 05:03 PM
  #1  
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Default What do you consider low H/C #'S

Just wanting to know What people think

low #'s for a A4
low #'s for a M6

What are your thoughts?
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Old Jun 21, 2006 | 06:20 PM
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Anything under 400rwhp.
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Old Jun 21, 2006 | 07:34 PM
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I agree You should see 400+ with h/c
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Old Jun 21, 2006 | 08:13 PM
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Depends what you would consider H/C.. bare with me!! Do ported/polished LS1stock heads count? If so my numbers are low!! But Mine isnt aggressive at all, TR 224 and 241's
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Old Jun 21, 2006 | 08:44 PM
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Below 420 for M6
Below 400 for A4

Depends on your setup.
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Old Jun 21, 2006 | 09:47 PM
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410 for M6
395 for A4

Just my .02 !!

peace
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Old Jun 21, 2006 | 10:01 PM
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If u are going through the trouble of replacing the heads I would be think anything lower than 430 would be kind low considering most cam make 400 with just a healthy cam.
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Old Jun 21, 2006 | 10:20 PM
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Anything under 400 rwhp with an M6 is low for heads/cam and anything under 380 rwhp with an A4. Some people forget how far we've come in the last several years. I remember when Nineball was one of the first people to break 400 rwhp with heads/cam (back in '99). It took lots of effort. Nowadays, it still does...just the available parts have made it easier. CNC ported heads, thin head gaskets, better headers, FAST intakes, EWPs and good tuning software have made the 450+ rwhp seem common...but let me assure you, it's not that easy. It's all about the combination of parts. Most heads/cam setups are in the 400-420 rwhp range. The really good ones are the ones that make the headlines, but in reality, they're not that common.
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Old Jun 21, 2006 | 10:58 PM
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Originally Posted by Patrick G
Anything under 400 rwhp with an M6 is low for heads/cam and anything under 380 rwhp with an A4. Some people forget how far we've come in the last several years. I remember when Nineball was one of the first people to break 400 rwhp with heads/cam (back in '99). It took lots of effort. Nowadays, it still does...just the available parts have made it easier. CNC ported heads, thin head gaskets, better headers, FAST intakes, EWPs and good tuning software have made the 450+ rwhp seem common...but let me assure you, it's not that easy. It's all about the combination of parts. Most heads/cam setups are in the 400-420 rwhp range. The really good ones are the ones that make the headlines, but in reality, they're not that common.

i agree. not to mention, the cost for that power can be alot to some of us who are working on a tight budget. im still in college, so id be thrilled with anything around 380-400hp.
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Old Jun 21, 2006 | 11:34 PM
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Originally Posted by Patrick G
Anything under 400 rwhp with an M6 is low for heads/cam and anything under 380 rwhp with an A4. Some people forget how far we've come in the last several years. I remember when Nineball was one of the first people to break 400 rwhp with heads/cam (back in '99). It took lots of effort. Nowadays, it still does...just the available parts have made it easier. CNC ported heads, thin head gaskets, better headers, FAST intakes, EWPs and good tuning software have made the 450+ rwhp seem common...but let me assure you, it's not that easy. It's all about the combination of parts. Most heads/cam setups are in the 400-420 rwhp range. The really good ones are the ones that make the headlines, but in reality, they're not that common.
Well said.........
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Old Jun 22, 2006 | 06:45 AM
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My numbers seem to be on the low side to some, but I'm happy with them considering the amount of $$$ I spent and the products I'm using.
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Old Jun 22, 2006 | 08:52 AM
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425 M6
400 A4
Considering most mid to big size cam-only bolt-on combos reach 400 M6 380 A4 RWHP, to add a set of aftermarket heads this day in age and not reach the above #'s wud have to mean something is flawed.

Last edited by 01bird58; Jun 22, 2006 at 09:03 AM.
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Old Jun 22, 2006 | 03:34 PM
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Also have to figure in heads/cam with or without a fast 90/90 as the 90/90 seems to pick up some big numbers after the heads/cam.
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Old Jun 22, 2006 | 09:48 PM
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Guess i am about average for my A4....3500stall,hand ported LS6 heads,232/236 .595 .601 cam, full bolton's...

However, i will be installing a Ported 90/90 (matched to my heads) next week...

We'll see what happens.. Here's my Dyno..
[IMG][/IMG]
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Old Jun 23, 2006 | 04:44 AM
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Wow this turned out to be a good post thanx a lot
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Old Jun 23, 2006 | 08:28 AM
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I got about 405 out of my 231/237 and patriot stage 2 heads. It may have been partly the tune or the fact the rear is a moser 9", locker, 35 spline (heavy) axles is taking away a bit more than if I just had my 10 bolt in there. At least that is what I tell myself since I didn't get like 430 out of it.
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Old Jun 23, 2006 | 03:58 PM
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^^ Its safe to say your getting robbed of some horse from the 9". My brother dynod his SS with a 12 bolt and stock 10 and saw a 15 RWHP diff. Granted it was different days and different dynojet dynos
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Old Jun 24, 2006 | 01:21 AM
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also depends on a lot of other things other than just A4/M6

type of rear end
gear ratio
size/type of TC for the A4's
Drive shaft
type/size of wheels and tires

i made 390 hp with my A4 with a old sloppy 4k TC on 26/11.5/15 M/T slicks, i know with the stock TC and stock tires i would have made over 400 easy with that set up.

But i think Patrick G has the right idea.
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Old Jun 24, 2006 | 04:50 AM
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Lows #'s for an M6 is anything less than 420rwhp
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