Earlsfat

I have 1.75" primaries with 3" main on the headers currently on RD. Dynomax makes a set of cermacoats that fit a 2 gen with a big block same size tubes, etc for $300.

HOOKER has a set that is 2" primaries with 3.5" mains (maybe it was 3.25" ... forget) cermaic coated for $350.

Question:

What difference if any would it make if I put the Hookers on rather than the Dynomax's? Current exhaust is 3" flowmasters (that some prick mechanic put 2.5" pipes coming out of the mufflers instead of 3"... putting turndowns back on soon).

If I put the 2" / 3.5" on, would I have to get a bigger exhaust? I would think 3" pipes off a 3.5" header wouldn't work well. You're supposed to go bigger (if not the same size) not smaller right???

Isn't that the whole scavenging effect - the wider the pipe the farther down the system, the more the gas can expand and sort of pull itself out of the exhaust??? Don't NASCAR exhausts start at 2" and go to 3" and end at 4" or so???

__________________
Cheesesteak..... It does a body good.

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"All you want to talk about is money, let's talk about love, and sex... forget love, let's just talk about sex. "

SG007

Headers are the devil.

__________________

-2000 LS1 Z28-1979 Berlinetta*sold*-1992 RS 25th Anniv. 350*sold*-

wrightz28

well, it's always fun to say "I've got a set of hookers"

Again, what are the cam specs for lift and duration? For mild street/strip, I wouldn't push too large. But yes you have the right idea, start with what you need to get out, and then kind of "megaphone" back.

Earlsfat

Don't know the cam specs... hoping to find out when we pull the engine. Actually hoping to find out alot of stuff when we pull it.

__________________
Cheesesteak..... It does a body good.

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"All you want to talk about is money, let's talk about love, and sex... forget love, let's just talk about sex. "

wrightz28

Get your dial indicator ready!

Earlsfat

Alright Dylan... now you're gonna make me own up to being the dumbass that I am... what the hell do I do with the dial indicator and what does it tell me? And how much are the damned things?

__________________
Cheesesteak..... It does a body good.

- - - - - - - - - - - - - - - - - - - - - -

"All you want to talk about is money, let's talk about love, and sex... forget love, let's just talk about sex. "

wrightz28

With a dial indicater you can determine the cams lift and duration. Also to test for and flat spots in the cam

Suppose you didn't think of t-gauges, micrometers and dial calipers iether I thought you said this guy knew waht he was doing

wrightz28

Oh, and you could also use the dial indicater to determine how far your supository has traveled and cleansed too

Sorry, I am in rare form today.

Earlsfat

You jackass... We haven't even done anything yet... not even decide what it is (exactly) we're doing or when.

Might just pull the heads off and send them out, and when they come back pull the rest of the motor and put the headers on, etc. I honestly don't know what's going on yet, my brain's still numb from tax season.

__________________
Cheesesteak..... It does a body good.

- - - - - - - - - - - - - - - - - - - - - -

"All you want to talk about is money, let's talk about love, and sex... forget love, let's just talk about sex. "

wrightz28

NO!

I, am Juan Valdez!

De jackass, he is my trusty mule.

kahjdh

lol

__________________
2001 Chevy Silverado 1500 Z71 5.3L
1996 Acura Integra LS B18 1.8L
*New $50 1996 Lumina APV, blown head gaskets, hope the heads aren't cracked.
*heads cracked, found that heads off a 00' 3.1L malibu work great.
Past Cars:
1990 Buick Estate Wagon 5.0L
1987 Chevy S10 2.5L Tec Four
1995 Pontiac Grand Am 2.3 Quad 4
1996 Jeep Grand Cherokee Limited 5.2L AWD
1991 Ford Tempo L 2.3L
1992 Buick LeSabre 3.8L
1997 Buick Century 3.1L

1986Z28

wow.. i think wright is high

DIAL INDICATER:


A plunger moves in and out from the body of the indicator and rotates the measuring needle on a dial face. Dial indicators usually have either a 1" or 2" range and are calibrated in increments of .001". A smaller dial reads each revolution of the larger dial in increments of 0.100".

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-1986 Z28 - 355 carb, T5
-1986 Sport Coupe - 305TBI and T5(parts car)
-1985 Z28 - No drivetrain(getting scraped soon)
-1989 RS - 2.8, 700R4(parts car)
-1991 Z28 - 355 OBDII tpi HSR, T56(soon hopefully)

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