just having my wisdom teeth out iv got a few days to spend on organising my engine rebuild currently ive got
-bored 20thou and honed ea block
-ceramic and teflon coated pistons,20thou
-rebuild kit
-tickford computer and chiptorque chip
-wade 1636 cam
-and all ef external parts to bolt on
-4.11 diff gears

i am going to send the head down to hoppers heads in melbourne they say it will be able to flow 175rwkw with bigger exhaust valves,ported,cam and springs, but im wondering what else i can do to flow more and possibly make more. any suggestions? also its going to be on nitrous.

Have you already got extractors, a performance exhaust & cat, a good air filter and some form of cold air induction?

If you're talking 190 rwkw, you'll need a more radical cam which will make the car unsuitable for street use. Straight off, a lot of blokes here will say you'll need forced induction (which may not be an option if you're on P plates).

yeah iv'e already got all that, and yeah im on p plates so nothing forced, im waiting to see what the specs of the cam supplied with the head is compared to my wade, and if im going to use either j3 chip or aftermarket computer whats the way to go?

I had my EF head modified, by Hoppers Express Cylinder Heads, and still have to go back with a dyno readout for them after the engine is run in. The owner, Trevor, is a good bloke speak to and happy to answer any questions. They also rebuilt my bottom end.

i know its not going to be easy im asking what needs to be done not what i should upgrade to.

You'd need a seriously good aftermarket ECU setup to run and allow for a more radical cam - especially so if trying for high power output and retaining streetability.
Chiptorque wouldn't seem to be anywhere good enough for really finetuning and adjusting around a big cam.

i realise this, what cam would be suited for higher kw and torque and what ecu are best suited for falcon 6's

In short 180-190RWKW N/A out of the E-Series in next to impossible. Many have tried, spent A LOT of money, come close and moved on to forced or 8's.

yeah thats n/a id be happy to have about 175kw plus nitrous

It is possible, but needs big money and also big revs. I know a guy with a brock EA pushing 175rwkw on the standard log manifold, off the shelf cam and a megasquirt ECU...

I have heard of 2 cars that claim they make 197 or 200rwkw

here is one response i got off eBay for a Guy Selling a Head - this was the heading on his sale:-

4L Head and Cam Package EF-AU bring 200kw at the wheels

I asked him does he has proof

i think 190rwkw na is probably do able but the bottom end will need a lot of work, higher compression and a huge amount of porting,a fairly wild cam.

but i think the ecu will be the let down..
i went supercharged on a stock engine with the std ecu and got 160rwkw.
i then went to a piggyback and got 175rwkw and in the end went with an ems ecu and got a 194rwkw.
so overall the aftermarket ecu gave me a 35rwkw gain..

Based on what i've done and seen done to the old crossflow motors, it really must just be in the factory ecu, if you went aftermarket i wouldn't see why you couldn't get a standard xr6 head to go 200rwkw's.. think 250-260@50 cam, 550thou of lift.. which is getting on the large size.. think the stock cam on these is 204-5ish@50.. (could be wrong thou) My next project after turbo on the el, is a crossflow motor i build for an xe i had, it is now going into a te/tf corty, with a 230@50 hydrolic cam 10.5-1 comp 600 vac sec holley it made 155rwkw's with a stock curve on the dizzy.. this build be uping the cam to a 260@50 solid with a 650dp holley aswell. aim is 220rwkw's but should make 200rwkw's easy enough! come on cam like booost haha..

1636 wont get you anywhere near 175rwkw, regardless of the headwork or compression you have.
From Wade you'd need at least the 1521a IMHO. You might be able to get there with a 977B, though it would be easier with the bigger cam. Maybe a big surecam cam, or crow?
Combine that with some nice headwork (port n polish, valves, springs, decked,) and a rebuilt botttom end, with an AU MLS gasket in the middle.. You'll need a J3 with a custom dyno tune (far cheaper), or other management system to run it all.. I'd say you'll be over 170rwkw with that combination..

None of the factory manifolds are going to make the power easily.

You are going to need a custom built intake manifold to suit the engine.
You'll also need alot of compression and alot of revs, think 7000+. you won't do it on stock rods and pistons.

 

_________________

xcabbi wrote:

^^^^
Agree with the crazy man tinkering in the shed above.

I'm not THAT crazy

HALTECH PLATINUM ECU is the way to go in ecu's.
I do think that a big cam is needed, something like 230-250 @ .050 duration & over .550 thou lift.
Big comp. bigger in.-ex. valves & a very good port job. All this equals big revs.
GOOD LUCK WITH IT ALL & GO FOR IT.

well this head place quotes it is good for 175rwkw so the cam must obviously be better than the 1636 and still run on stock ecu?