Mods on Blue 202

[commodore nut!!]

I have bought a mint blue 202 for my VH SL/E which has only done about 120,000km as it was in an accident and written off and sat on his lawn for 10 years lol. I want to make it go a bit harder. What shall i do? something not to major but something that will be different

[codfishface]

There's nothing magical about extracting more oomph out of an old six.

Have a read ~ How To Build A High-Performance Holden Six

[commodore nut!!]

cheers! yeah i know it isnt the best motor but its my first car plus im on my p's so that stuffs up buying a v8 lol

[Darren_L]

cheers! yeah i know it isnt the best motor but its my first car plus im on my p's so that stuffs up buying a v8 lol

sure the 202 has had it's day. But they are a very respected engine, with remarkable motorsport heritage.
Remember 202 powered XU1 Toranas were victorious over the big monster 351 Falcons at Bathurst on more than one occasion. Sure the handling & size of the car was a big advantage, but they couldn't have done it without a strong, reliable & competitive engine under the bonnet.

Whilst you can't expect the same sort of performance as the latest generation engines, you can still make some good power out of these engines and keep up with some of the later model stuff.

[slayer208]

Hey there,
I'm only new to this forum, but have been working on the old Holden sixes for around 15 years now. It's totally surprising how much performance you can actually squeeze out of these old motors, despite many people dissing them as they do. Those are generally the ignorant people that have no life skills and whatnot. I find the best performance mods you can do, is to make them breath. Easily done If you've got a few dollars, invest in a good running triple SU carbies. These are no where near as troublesome as most people will say. I can build a set made out of stuff from here, there and everywhere - put it all together and have it perfectly tuned in under 20mins. Also get a good set of extractors and a good cam "30/70 will be fine, however I generally use a crow 35666". Try and remove as much anti-pollution gear as possible, as all that kind of stuff is just a drain on your engines HP. You'd be amazed by how much performance you can gain just by doing all that. I don't think you'd look back to tell you the truth!.

I've spent many years playing with and power tuning other carbies such as single-barrel strombergs "speedway specs" and 350 holleys. Had a little experience with weber ADM's and Stromberg WW2 carbies, but none of them even come close to the performance of the awesome SU's.

Setting up extractors and triple SU's on its own will work great for you on the 3.3 and installing a new cam shouldn't be too much harder. GO for a cam with reasonably high lift, that isn't too mad so you've still got that street driveabillity.

Cheers!

[commodore nut!!]

this has really motivated me to mod it asap. lol! but cant i have to wait till dad finds a v8 that he wants. i think first i better finish off the priming of the car, paint put the 202 in it and get it road worthy and reg'd. i reckon that will take me a good 6 months! i say give till january next year and i will have tyre shredding mint 202 powered '82 VH SL/E!!!!!!! I cant wait to start the project properly!!!! thanx for the help guys

[vk.jonno]

Hey there,
I'm only new to this forum, but have been working on the old Holden sixes for around 15 years now. It's totally surprising how much performance you can actually squeeze out of these old motors, despite many people dissing them as they do. Those are generally the ignorant people that have no life skills and whatnot. I find the best performance mods you can do, is to make them breath. Easily done If you've got a few dollars, invest in a good running triple SU carbies. These are no where near as troublesome as most people will say. I can build a set made out of stuff from here, there and everywhere - put it all together and have it perfectly tuned in under 20mins. Also get a good set of extractors and a good cam "30/70 will be fine, however I generally use a crow 35666". Try and remove as much anti-pollution gear as possible, as all that kind of stuff is just a drain on your engines HP. You'd be amazed by how much performance you can gain just by doing all that. I don't think you'd look back to tell you the truth!.

I've spent many years playing with and power tuning other carbies such as single-barrel strombergs "speedway specs" and 350 holleys. Had a little experience with weber ADM's and Stromberg WW2 carbies, but none of them even come close to the performance of the awesome SU's.

Setting up extractors and triple SU's on its own will work great for you on the 3.3 and installing a new cam shouldn't be too much harder. GO for a cam with reasonably high lift, that isn't too mad so you've still got that street driveabillity.

Cheers!

sorry to hack the thread mate but

slayer208 do u know any mods for a fuel injected 202 in a vk??
i was thinking to start with go cold air intake and exhaust system.
also mayb a cam
what else would u suggest

[GenReaper]

Take the Head off, shave it to 10.5 compression ratio, good extractors and 2 1/4 inch exhaust.
Descent cam something like a 25/75 ,265 duration 450 lift.
Down the track put screw in rocker studs and guide plates and roller rockers.

Ive owned plenty of hot 6's and one that did 10.0 @ 135 mph, so yeah i know the score

[slayer208]

You might want to take out the motor if you want to do anything really big, but i'd definately try and do something about the compression on one of those. Get the block decked for zero clearance, surface plane the cylinder head. Might want to bump that up to with all brand new valve stem guides, some larger valves and some mass porting. Probably a re-bore for some extra displacement. If you go an XU-1 street cam, the EFI box will handle that okay, but that's about the limit that these EFI boxes can handle with a cam. Some people also recommend a gemini torque converter for the trimatic, kind of like high stall. If you do a cold intake, you might want to get some real smooth aftermarket piping. Not some of that stuff that has rutts and ripples in it. Roller rockers might also help smooth her out a bit.

Cheers!

[slayer208]

Forgot to mention, if you want to go real crazy with the EFI stuff then you might want to change the EFI box for a VN one or camira one and also use bigger injectors with a haltech hand-held programming tool. I'm not an expert with this kind of stuff, as the XU-1 cam and a re-bore was good enough for me.

Cheers!