nathan1 wrote:
But I have heard that if you don't get it right, you will only get 5 to 10kw more but if you do it right 30 to 40kw so you can reach around 145 to 150kw at the front wheels not bad!
Compare to a VR4 208kw stock
First things first; power at the wheels is different to power at the engine (or flywheel), you seem to be confused...
A VR-4 makes nowhere near 208kw's stock, even at the flywheel. More like:
~130kw's for the automatic with the tiny TD04 turbo
~150kw's for the manual VR-4 with TD05 14b turbo
~179kw's for the manual Eclipse with TD05 small 16g
That is all at the flywheel
CowboyDan wrote:
They were put out with 164kw at the fly in stock trim. Roughly 110kw at the fronts if you allow 30% tranny loss (which is probably a bit of overkill, so maybe a bit more than that).
30% for a FWD is a bit rich, however this will vary from car to car and from drivetrain to drivetrain. The powerloss through friction and rotating parts in a FWD is closer to 15-20%
eclipz wrote:
The most popular Cordia Conversion is definately the 2L Twin cam Turbo mill from the Galant VR4. The 4G63BT twin cam is standard equipment in numerous vehicles including Evolution Lancers, Eclipses and Galant VR4's.
This engine comes in a huge variety of different performance specs from 130kw to 208kw
The most popular is indeed the VR-4 or the Eclipse as they have a 6 bolt crank which bolts to the existing cordia flywheel. The EVO engines have a 7 bolt crank and it is a headache to adapt, although it's been done.
No Evolution engine that is standard (and will fit in a cordia) produces 208kw's. The best performing engine in terms of power output is the EVO3 which with it's 'big 16g' turbo produces 198kw's (at the flywheel). EVO 4 to current engines that produce 206kw's will not fit a cordia as the engine was turned around 180 degrees.
nathan1 wrote:
I wonder how the vr4 would go if it got boosted to 17.5 psi or 20 psi
i wonder how long 1.8 will last to Achieve what a vr4 does stock
i have been told that they are very strong but running 20 psi i wonder
That is exactly the point. You would have to build a dash or 4G62T to make anywhere near what the Twin cam can do standard. I personally wouldn't waste my time performing 'extreme' mods to the single cam engines as the VR-4 can do it straight out of the box. A standard DOHC VR-4 will happy live with 17-18 psi and around 250kw's (at the flywheel) before you really start to compromise reliability. As of next month, mine will be running up to 25 psi and will have over 300kw's, but then again, it's got forged internals...
Eclipse, for dollar/performance there won't be much in it between a stock VR-4 and a worked single cam, but you'll be kicking yourself if you didn't opt for the VR-4 when you start craving for more power when the single cam in not enough...
With regard to engineering, SA was a bitch, but I would suggest that you make a quick call to the transport authories in your state as it might not be quite as expensive as it may seem...
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