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V6 power increase

keith reed

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The old saying speed costs money, how fast do you want to go is certainly applicable. On the other hand we are enthusiasts who like to have
a bit of fun with our cars. It's only money and we can't take it with us. As long as the rest of our life doesn't suffer too much who cares.
Well that's what I tell myself anyway.
 

losh1971

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The old saying speed costs money, how fast do you want to go is certainly applicable. On the other hand we are enthusiasts who like to have
a bit of fun with our cars. It's only money and we can't take it with us. As long as the rest of our life doesn't suffer too much who cares.
Well that's what I tell myself anyway.
Exactly right making old jalopys go faster and pull harder is the name of the game. Just so you know Trevor Buicks don't need much at all to safely run boost. Some came out with boost and no beefing up like the L67. Its a good idea to have a fairly tight bottom end and ensure the trans has the appropriate upgrades to handle the extra power.
 

Trevor loves holden.

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Yeah that's fine if you want to play around with the engine but make sure it complies with your state rules or the cops might give u a yellow canary. I was saying I wouldn't doesn't mean you cant.
 

MrVR263

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Now I'm just giving my opinion and that's all. @losh1971 did you fit any other brands of extractors if not how can you say they are better just because the specs say there longer than others do you know what the difference is between yours and other brands? Cold air in take and air filter combination can can have no effect or some effect depends on the setup again did you try any others? Just because things sound louder doesn't mean it's better. Example VE V6 might sound cool with a intake but in reality testing on a dyno it loses power due to vehicle computer settings. If you have to fit shorter push rods then there is no point fitting rockers when most cam manufacturers have based the development of the camera on a certain ratio there for the price of rockers and cam and push rods is double what a cam upgrade is using common products. When I say tune I'm not talking a memcal from the post I'm talking a custom tune with your ecu to suit your car. Some engines like more timing mid to top end some like it lower due to engine mods same as fuel mixture. A off the shelf so called tune is generic to suit all sorts of engine configurations but still be safe for everyone. @delcowizzid knows what's involved in a factory computer recalibration. So at the end of the day without knowing the difference between intakes and exhausts and so on you can't say one is better than the other you can only give your experience and not say it is better than the other if you don't know is all. As for buicks l67 and your Buick engine are not the same. Be sure to give the information what's a tight bottom end vs a lose what's low boost to you might be different to me be careful on advice you give others
 
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losh1971

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Did i try out other headers? No. Did i try an OTR? No. Are Pacies best and Mace CAI the best? According to blokes that race and build engines and tune, they are. I went with what was recommended to me by blokes that have been there and tried other options.. I merely base my opinion on what I have researched. So my only opinion is based on expert opinion. The Co that sent me my tune is done by professional tuners that they have done to suit the mods they sell..Not many blokes around doing dyno memcal tunes now a days. Probably be a long drive depending on where you live to find a memcal tuner with a dyno. I will need to find one if i go boost. Tight bottom end is one that has been freshned up and not with 300k on the big end and mains. Buick handle boost no worries. You don't need new crank and stronger rods. You do need a bottom end that is tight. New valve springs should be done too. I'm going reco heads, with reshaped valves and some mild porting. A cam upgrade is good but its a lot of work and if you want to change the bearings it requires specialised equipment. I went with rockers as i could easily fit them myself. They do make it go a fair bit harder. A cam would be better as you also get duration. Cams really require a dyno tune and again the problem lies with finding a memcal tuner with dyno. A fair few blokes that used to do it no longer do.
 

MrVR263

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I'll just let that be I don't want to get into an argument over this stuff because it's not worth it. I have better things to do than arguments.
 

losh1971

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Not try to argue but that's what forums are about not everyone will agree. One thing i can say for sure is the mods i have done made a significant improvement. One thing i do disagree on is your claim that rockers do nothing. I noticed a decent difference the night i fitted them.
Had i had my time over i think I might have gone with a cam, because even though it would have been slightly more expensive, i had to take my timing case off anyway because the new rockers made my chain rattle. I spent a bucket load in the end anyway as i had the sump taken off and new mains and big ends fitted.
 

MrVR263

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I've seen real world testing back to back average of 5 dyno runs without rockers then 5 with rockers same dyno same day car was never removed off the dyno and made with in 1kw over before. On this thread the bloke was a king about upgrades he could do not how can people argue. Just continue doing what your doing all good.
 

losh1971

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I would have liked to have had a dyno run done with everything stock. Then continued runs throughout the upgrade process. But at nearly $300 bucks each time i didn't want to spend the money.
I would like to get it on the dyno now with the upgrades but again it's the cost.
As for power increase i don't know how much extra at 3-4k i have as I'm used of it and it goes good but not like a rocket.
However one thing that improved massively was the way it pulled. Before the upgrades it pulled the 900kg trailer ok but when i had the CAI fitted with tune and Pacies it pulled like a bastard. I hardly had to touch the throttle with those three done. Where as prior i was 3/4 pedal to get some decent take off.
 

MrVR263

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A cheap easy mod is to fit a Holden 5L V8 throttle body there 5mm bigger you go from 60mm to 65mm or if you can find a modified one that's bord out to 70mm. The V8 throttle body adds to a free flowing intake
 
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