202 HP Gain
Hey just wanted to find out how much horse power gain the following mods from stock specs of the black 202 in the vk which i have done/goin to?
-Extractors into 2 1/4 exhaust
-Electronic Distributor
-Weber 34adm transplant
-twin thermo fans from v8 vt
also just replaced original radiator with new 3 row radiator
thanks
well a 202 blue originaly had about 85kw when it was produced cant remember what the black had. a Thermo fan makes a power gain of about 10%. I run a 250c.f.m webber, I dunno what gain I get but I know this much it can go, same with the extractors, Ive heard the optimum power gain is from a exhaust about 2 1/4" to 2 1/2 " mine also runs a lumpy cam so then again results would differ, sounds like a great set up tho
F.O.R.D
Forget Out Running Datsuns
What brand extractors do you use and do you still have the EGR on the extractors?Originally Posted by RayRay07
What do you use to control the fans and what do you use as a fan shroud (if anything)?
Regards Phil
im, im pre sure there geni extractor, nah EGR is gone.
dont have the thermo fans on yet, but how should i go about puttin them on?
Banned
Someone has been brainwashed!
A fixed blade holden engine fan will soak up about 3kW at 5000rpm, much less than that at lower rpm where one would do most of their driving, and rises as the square of the engine speed. If you are interested in dyno challenges at high rpm, dont use an engine fan.....but otherwise the energy used by the fan in road use( what most of us use the cars for) isnt wasted like it is on the dyno.....
If you use a clutch fan then the losses are neglible, unless the fan engages when it is hot(about 1% of the time).....in that case you'll be needing your fan anyway.
Spend your money on things that are going to make a difference.
Ignition, dont you already have an electronic ignition?
Ecotech Power
VK carbs had EST, you should get much power gain going to electronic caus their exactly the same as the EST, just the EST uses a different method to find out when to spark, the electronic will be more reliable, but not as effiecient.
Thermo's would let it rev up quicker, and cause less engine drag, great for economy, not very much for power unless you like revving your engine in neutral it will rev up noticeably quicker, but you wont notice much when driving.
Webber should bring low down torque with about more power, dont have a figure but its a good conversion with a bonus for economy.
Extractors and exhaust is said to be around 5-10kw gain each depending on the engine.
Ray ray, thought about a cam change?
that will change things...
yes, have actually thought about changing the cam, but am unsure of what cam to get.
what is a good choice in a cam?
Want the best bang for your bucks? cut all the way around your air cleaner housing so that the filter element is fully exposed. Basicly like the chrome ones shown on this page.lets it breath heaps better. reportedly good for 14hp. either way i noticed it made a big difference when i did it.
Ecotech Power
LMAO 14HP, no offense but not a chance you would get close to that gain from cutting your air cleaner housing.
it's bloody hilarious the figures people think some mods will make!!
the mods listed:
-Extractors into 2 1/4 exhaust
-Electronic Distributor
-Weber 34adm transplant
-twin thermo fans from v8 vt
would probably give a gain of about 5 - 10hp.... maybe. its only when you change heads, carb/injectors, ignition, exhaust and cams ( matched together ) that power increases significantly. you will notice/feel the car driving better though with the above mods.
i read this long ago when i first got the vh...street machine did a write up on how to get 200bhp from the 202...and it was 14kw not 14hp haha...he also said reportedly ie not his own findings, i think u might owe matt08 an apology
i did this mod before i got a proper chrome filter, it did make it more lively but i didnt think it was near what street machine reported (might have something to do with theirs was on an engine dyno so it was sucking in cold fresh air where normally it would be sucking air from right above the exhaust manifold)
the first thing to get your 202 going quick is to make sure it runs the best it can, eg, clean high flow filter, leads, take off any pollution crap, new fuel filter, good fuel, good oil etc....mine is .7 sec off a vy executive 1/4 mile and i dont even have extractors.
Last edited by VH commodore; 07-05-2008 at 02:55 PM.
sorry was sposed to add this with the other post! had troubles getting it on here but if you go to the street machine website on the left go story archive then tech stuff then u'll see the 'grunt hunt' 202 write up its all there!
dont forget BHP ( brake horse power or rear wheel horse power ) and HP ( usually in reference to engine HP ) are two very different units of measure. alot of people talk in BHP but actually mean engine HP. eg: my 308 makes 310hp ( engine ) and 230bhp ( rwhp )street machine did a write up on how to get 200bhp from the 202...and it was 14kw not 14hp...he also said reportedly ie not his own findings, i think u might owe him an apology
it did make it more lively but i didnt think it was near what street machine reported (might have something to do with theirs was on an engine dyno so it was sucking in cold fresh air where normally it would be sucking air from right above the exhaust manifold)
200BHP is a lot of power from a 202, they probably meant 200 engine HP ( or 150kw @ flywheel ).
it doesnt surprise me though that a different air cleaner on these 202's would release some power, they are badly restrictive.... didn't think as high as 14kw though??
Last edited by vee ka; 07-05-2008 at 03:13 PM.
my bad always thought bhp and hp where the same oops...the story is how to get 200hp out of the 202 at flywheel...i have seen another story on a racing torana on how they got 300hp out of the 202 N/A
Ecotech Power
Yeah i think i do, but im still skeptical about 14kw, dont see how its possible.i read this long ago when i first got the vh...street machine did a write up on how to get 200bhp from the 202...and it was 14kw not 14hp haha...he also said reportedly ie not his own findings, i think u might owe matt08 an apology
Just wanted to further confirm on the cam change, I had a 202 in my hx wagon, we put in a 186 lumpy cam, don't remember the specs of it but it did make a huge difference, solid lifters perhaps, heard a few times roller rockers were the way to go but never tried it. The pistons were also 40 thou over, we completely rebuilt the motor, new rings, honed the block, reseated the valves and put in hotter plugs. Hope some of my suggestions could help, I've just got a beaten out old vk sedan now, she's a good old girl, doesn't have anything special, she's just standard. Miss me old beast, had a hg prem sedan with 383 chev n 2 spd powerglide, that's the kind of power you want.
the standard snorkel is very restrictive but yes i agree with you...i felt maybe a 5kw difference at the most(guesstimate) when i opened up the air box. might make more of a difference if u add extractors with it...if i hadn't read that article than i would have said the same as youi was keen on rebuilding the 202, but at the end of the day there's no point when engine conversions are so cheap (provided you can do it yourself)
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