front mount vs. rear mount

[SBL]

Well being in Kalifornia I dont see how you get ANYTHING not in "stock" form past an inspection.

Technically the federal law says you can not tamper with, replace or remove any functioning catalytic converter.

The law does allow you to R&R a cat after 10,000 miles.

I used to live in San Diego, CA. One can ignore vehicle inspections by registering your vehicle(s) in a smog-check exempt zone. Mine were registered from 1999-2005 in such a zone and I never had to inspect my vehicles. Of course, I didn't worry about the smog-police because my cars had the factory emissions equipment intact, including the cats.

[GasGuzzler]

A GTO has no room under the hood without major redo for a front mount so r. barn's is sorta still in tact.

[Trick1]

If you already have a rear mount might look into our low mount pipe set up. 500.00 moves the turbo ALOT close to the front. Right beside the tranny area.

Somethings alot of people over look is not just the heat, but the exhuast pulse energy. The closer you are the more you have of it.

You can reinstall a HI flow cat to pass any visual emmissions stuff...

[r.barn]

That's why the fastest GTO in the nation has a rear mount TT set-up right?

GTO has a rear mount system cause that the only place they will fit.
Sure they "work", but they will never be "optimum"

[George C]

did some testing yesterday to see where i build boost and etc. with the 410s and a slight grade around 35mph if im in 2nd gear i can see about 5psi by 3k by giving it full throttle. i also did same test in 4th gear going at a faster rate and seen 5psi by 2500 rpms

[kbracing96]

There is a LITTLE more power and can be a LITTLE faster at the track, mostly do to a bit of an increase in efficiency of the system. The biggest gain is on the street in the form a spool time. I went from a STS to my own built front mount and I will tell you, it's night and day difference on the street. MUCH faster too spool. I move the T60 I had on the STS/4.8 up under the hood with the front mount on the 4.8 and with that turbo, it hit like I had N2O on the truck, lol. MUCH fast spool time. Track and dyno results are very similar, cuz your make the same boost/power for the most part. It's just that with the front mount, it comes on a lot faster.

[randomhero]

I think both are obviously proven setups.

I have yet to actually install a turbo kit so take my advice with a grain of salt.

I've read many many different opinions on the matter. I have owned an STS setup and am not building a front mount setup.

Here are some of the points I liked about a front mount setup which are positives for my situation:

1.) I hate the idea of having an electronically run oil pump. I've seen several fail that have also trashed the engine as well.

2.) I don't like the idea of the turbo being that low on the truck. I'm lowered 4/7 and it would worry me to have to drive like that in the rain. I've read where people use a snorkel setup, but that's still not fool proof.

3.)Lag time. Obviously the exhaust gases are traveling at a super fast rate, but that extra 7' or so is enough to make a difference.

4.) Simplicity. A front mount is about as basic as it gets. Pretty much every kit uses the old fashioned gravity oil flow setup which is for the most part dummy proof(unless you skimp on your lines).

There's several more points, most of which I don't know enough to touch on, but bottom line is that a front mount setup made more sense FOR ME.