Re: Exhaust size question

From: Matt Beazer (teseract@enchantedbookstore.com)
Date: Mon Jan 26 2009 - 20:32:31 EST


Sounds like good advice to me. It makes sense, when I think about it.
The most I plan is TB, PCM (though I flinch at another vehicle that
requires 92 octane after the damage my (blonde) wife did to my Neon)
exhaust, re-do the Y-pipe from the exhaust manifolds back, headers
(found a place that still sells the Doug Thorley headers), and the
standard ghetto CAI I've make upteen-times with black ABS plastic and a
big K&N cone filter. A limited slip diff in the rear end would be a
must as well.

Cam I'd like to do "someday" but this whole push rod thing is new to me
and I HATE doing valve springs with the heads on. If I pull the heads I
know a guy locally who can do a decent mild port job on the cheap, but
the only reason I'd pull the heads is because I had to. The M1 intake
looks good but I don't know if I want to spend that much money when a
modified Edelbrock Air-cap intake can be had for a bit more money from
Hughes Engines, or spend a couple hundred less for one of their modified
stock intake manifolds.

I want a decent low end but plan to focus more on a strong midrange
without it choking on the top end. Towing isn't my goal, mostly I plan
on bombing around town in 4wd in the snow and hauling "stuff" in the
bed. 3" exhaust sounds like it would be fine for that goal.

I like to research these things and have a plan before I buy. I've
bought cars on a "whim" before and regretted it when I had to do more
work than I'd have needed if I'd done the research before hand.

MattB

Mike Sykes wrote:
>
>>> Can I ask what your setup is? Headers, cam, anything like that, or
> stock? I can see how it could be slower if you lose too much exhaust
> velocity, but I'm also in a situation where I don't have to have a cat
> slowing down the exhaust flow either. :)<<
>
> My current setup on my R/T is the True Dual setup from GSM. It's 2.5"
> with X pipe and full length headers. Very nice, but leaky setup.
> Sounds really good imho, but the National R/T club has differing
> opinions on GSM. This is almost too much for my R/T, despite the mods.
> No cam or heads, but 1.7RR's, M1, TB and PCM. Since there is forced
> induction in my future, I figured I'd go with this exhaust. Also, it
> was full bolt-on and this was going to be a driveway install, so it
> was good for me at the time. Where I learned about too much exhaust
> was with my old 6er. I put a 3" exhaust on that truck and it was a
> pig. I didn't know much about exhaust velocity at the time, so I just
> took the monkey with the welder's recommendation and used the 3"
> Blowmaster he had on the shelf. Performed horribly, sounded even
> worse. Once I had the exhaust re-done, I picked up a full .5 in the
> quarter mile.
>
> I just don't want you to make a costly mistake =) Even the 11sec
> R/T's aren't going any bigger than 3" exhaust. There used to be a lot
> of kits out there for under $300 from Flowmaster and Magnaflow, but
> honestly I haven't shopped for much in a long time. I just say, keep
> poking around for a good deal. The bulk of the cost of the kit is the
> convenience and the pipes... mufflers can alway be swapped out if you
> don't like the sound. =)
>
>
> -miggity
>
>



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