Originally Posted by Pheonix

Everythings custom.

* custom intake
* custom intake manifold & throttlebody
* head porting & valve work (1mm oversized exhaust valves do fit)
* custom cams
* custom headers/collector or custom y-pipe
* high flow/delete cat
* high flow resonator
* high flow muffler
* piggyback to control ignition timing & somewhat fuel
* higher compression pistons (hah)
* stroked crankshaft & corisponding rods (hahaha)
* bored out cylinder sleeves & larger pistons (bawahahahahaha)
* knife edged crankshaft (ahhh hahahahahahahahahahahaha)
* lightening the engine/drivetrain components

Which is pretty much why you just do intake, make a y-pipe/cat & change cat back. Maybe get a piggyback. Mods cost money, and the only mod with a really good price / performance ratio normilly aspirated is a y-pipe.


Which is why most of us say do the basic mods, then:
1) buy a new car
2) spend $450-550 on ebay for a wet n2o kit
3) save for a turbo setup

Impossible to say. Figure... 340-400bhp N/A on a 9K, 9.5K, 10K rpm peak engine. But at extrordinary cost. You're literally talking about building a 10-20 grand engine.

Just do some basic mods, then save for a turbo, or n2o. N/A sucks. It's always expencive, and always a dead end. With FI, you can make whatever you want to, at infinately less cost, with no sacrafice on the powerband.

Originally Posted by Pheonix

A grounding system really isn't going to do anything on that engine. It's a wasted spark ignition. The stock spark is very, very strong. Maybe on an engine that has corroded every stock ground off of it.

You're really looking at doing some exhaust mods. Its all been said many times before. Y-pipe, high flow cat (or no cat with an o2 simulator if u dont' have emessions), a high flow resonator, and a good muffler.
From there... It gets relatively expencive with headwork, cams, or a turbo/supercharger. Unless you just feel like slapping a $450-550usd wet n2o kit on. Thats always the most cost effective way.

BTW headers suck. $800-1200 for custom headers, and they don't provide the power a good y-pipe will make on stock headers. I could babble on about header design, but I don't feel like it today. The problem is that shorty headers are all you'll ever find, and you'll never talk someone into making a set of real long tube headers. Short headers simply don't work. btw, I wont say what the optimal header primary tube length on the 3vz-fe's & 1mz-fe's is, b/c I may yet make a set or two. I will say it is well over 3 feet long. *Noooobody* is ever gunna make u some that long b/c they'd never figure out how to merge them LoL!

Skip the headers. Just get a good y-pipe made & put on. It'll be better than the headers anyone will be able to make you without some serious fab on it.

Long tube headers are the way to go guys... Shorty headers don't do really do crap on any v6 including ours. That's alot of money for something that will never see much potential LoL!

It's a design flaw, not a "who can make the better shorty header".
Trust me. Build a Y-pipe, or go with long tube headers. You will regret it when you spend nearly a grand on shorty headers & wind up with an extra say 10-12bhp only at peak rpms.

Originally Posted by kiwies300

thanks for all the good advice
the y-pipe sounds like the go along with a after market exhaust will have to be custom as importing way to costly any ideas on pipe size 2"3/4 ? and angle on y-pipe 45deg?