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| SQUEAK |
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Hey all,
Engine is out and stripped, So now is the time to decide on what to do. Im going to keep it a six and an auto. So my options are tough n/a engine, 11.1 comp, twin throttle bodies, massive head work and a huge cam.....will make around 420hp and id chuck a 100 shot of noz. Or rebuild the bottom the bottom end with low comp and buy the stage 5 snort performance kit. And run some serious boost. What would you guys reccomend and why? Have to start doing things soon. The n/a setup would be different and freak alot of people out but the turbo would be alot more driveable and make more peak hp...So I dont know.
_________________ Fuk it, You only live once!!! |
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| bentfairmont |
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turbo is just something else to go wrong in my opinion... but i like the feel of a blower - smooth - (yes i have had both in similar ricers
 ) and to be na and blow away the opposition who then say you have a turbo or somethin and you say nope! it feels good 
but if i had a choice of all three i would probably go a clutch controlled blower - but then again i prefer a cruiser to a racer 
_________________ Sometimes when you do something right, people wont be sure you've done anything at all. (Futurama, Episode - Godfellows) |
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| drazull |
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Blower setup would be very drivable, but for some reason N/A setups are just so cool, especialy with a NOS kit.
Have you checked insurance and prices on kits avaliable? That information might make the decision for you.
_________________ Not lost any demerit points |
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| Hyena |
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SQUEAK wrote: So my options are tough n/a engine, 11.1 comp, twin throttle bodies, massive head work and a huge cam.....will make around 420hp
Who told you that ? That's like 315kw - which is more than you could expect out of a NA 4l It all comes down to money. If you've got 10 grand to spend on a turbo set up then do it. There's a big difference between top end NA mods and a "stage 5" turbo kit though... My NA engine is quite "drivable" with plenty of torque
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| Waggin |
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I added my 2c on the same topic over in the ECU forum.
200RWKW is the limit from a 4L. If you can get more, you'll do all the 4L performance guys out of business!
_________________ WAG363: AUII LTD Supercharged 363 Dart Stroker [Supercharged 363 LTD Build] |
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| bentfairmont |
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also N/A is less messy when it comes to compliance
_________________ Sometimes when you do something right, people wont be sure you've done anything at all. (Futurama, Episode - Godfellows) |
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| CHEF |
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TURBO, if you want 300wkws plus then your lookin at turbo or supercharging it, forget NA.
Anyone who's owned/driven a turbo i6 will say this. Fact is alot of poeple are scared of turbos, sure they were a tad dicey in the 80s, but they are safe as these days |
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| CHEF |
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Oh, and just have an intercooler on the front spells " you have no chance mr hsv"
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| dcstraight |
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Agreed - going back 3 or 4 years ago, I was ranting and raving to all my mates about this 'Jim Mock' crowd who did wonders with 4L taxis (hehe)...I was so keen for a dev kit at the time.
At the time, I had a GRA under bonnet TB with converter, with some work going on to my car - I got to test drive the Gas Research's AU test mule for a weekend - T3 turbo, non intercooled (but with water injection), 5psi boost (158 rwkw), chip torque chip and still with 713 + kms out of a tank of premium with a full load of luggage and 2 other passengers also in 30+ degree heat...it was then that I knew what I wanted. I guess it comes down to what you want out of your car - N/A is great...cops can inspect the engine bay and see there's no visible evidence that your car is illegally modified...obviously different for turbo / supercharger setups. N/A your performance gains are always higher up in the rev range - turbo makes great torque down low...mine's un-tuned at the moment (pings under 1/2 - 3/4 throttle) @ 35000 RPM - but is still very drivable for daily commuting even with a bit of kick too. In summary - N/A setups are relatively cheap *read Wade Stage 2 cam, zorst, stractors, 3.45 final ratio, T5 etc)...but for bigger power - turbo / supercharger - it's that simple IMHO. |
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| One Drone |
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Turbo or 8. Obviously you've decided not to get an 8, so turbo on the I6 is the go. Proven power, especially on the I6.
_________________ There are 10 types of people in this world. |
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| AKO |
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I went the turbo path and I love it. Speak to Joe at Cresent motorsport as I think he has an engineer (works saturdays) who can supply a certificate for their turbo kits.
_________________ The artist formerly known as seton005 (and allegedly The_Murph).
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| SQUEAK |
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Cops and rta dont bother me at all.
Ive decided to go the n/a way with a shot of gas. Been speaking to certain people and I have got a guy that will do my head and it will flow 500hp at 600thou lift. I can get my custom cam ground for a reasonable price, Im still fine tuning the cam specs but its f**k huge...
And im very confident I can break that 200rwkw without the gas and through an auto......
Ive got most of the combo sorted, I just need to find some extractors big enough....No one makes pipes big enough for what I need. I also need a 3inch exhaust, So I need extractors with a 3inch collector. Does anyone know of a company that sells them? So far I think im going to have to go custom. Last of all Im just trying to work out what computer to buy.
_________________ Fuk it, You only live once!!! |
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| Waggin |
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SQUEAK wrote: Cops and rta dont bother me at all.
Ive decided to go the n/a way with a shot of gas. Been speaking to certain people and I have got a guy that will do my head and it will flow 500hp at 600thou lift. I can get my custom cam ground for a reasonable price, Im still fine tuning the cam specs but its f**k huge... And im very confident I can break that 200rwkw without the gas and through an auto...... Ive got most of the combo sorted, I just need to find some extractors big enough....No one makes pipes big enough for what I need. I also need a 3inch exhaust, So I need extractors with a 3inch collector. Does anyone know of a company that sells them? So far I think im going to have to go custom. Last of all Im just trying to work out what computer to buy. I've spent around $10-15k chasing 200RWKW N/A. Myself along with all the 4L performance shops will be amazed if you can crack the 200RWKW. If you somehow peak 200RWKW at 8000RPM, it would be no more than a Dyno Queen. The power curve would be pathetic, and power/drivability around the streets would be boring. If it was as simple as hogging out the ports and throwing in a cam with 0.300" lift, everyone would be doing it already. 420HP is a big power chase even for the EFI 302 guys who have a MASSIVE aftermarket selection of bolt on gear. XR8Chic has the best heads money can buy for a street 302 (280CFM @ .6500"/270CFM @ .500"), a high flowing intake manifold, good pipes. Then compared to the 4L it has an extra 1000cc of displacement, 2 extra cylinders and 4 extra valves and can only get 200KW to the treads.
_________________ WAG363: AUII LTD Supercharged 363 Dart Stroker [Supercharged 363 LTD Build] |
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| SQUEAK |
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That being said, My mates had au series 1 xr8s.
They had standard heads, spacers under the inlet manifold, larger throttle body, and a ported maf, extarctors and a stage 1 trickflow cam and a unichip, 188rwkw.
_________________ Fuk it, You only live once!!! |
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| Shugg |
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SQUEAK wrote: Cops and rta dont bother me at all.
And im very confident I can break that 200rwkw without the gas and through an auto...... BUUUULLLL SHHHHIIIIIITTTT Build it, and I will believe it. But until then 
And  Why wouldn't the cops and RTA bother you  Are you GOD or something STOP DREAMING, OR PROVE ME WRONG
I am sorry to be such a prick, but I know about the trial and error of trying to build a N/A I6 (and auto wont cut it). I just hope you're dreams are not shattered. And if for some reason you do achieve that power, be prepared for a rebuild every month
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