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Discussion in 'VF Holden Commodore (2013 - 2017)' started by 426Cuda, Dec 31, 2018.
another good option for the cam
Wagga to Sydney yesterday. Tuned L77 on 98Ron. On cruise 120k's all the way. Bar a few spirited overtakes. Up to 44° heat for a large part of the trip. It's an uphill journey for the most part.
Best for 25k's was 6.2L
Best for 100k's was 6.9L.
I'll improve significantly on all those measures on the trip home. I can't get close to this in my (LS3) Motorsport.
That's probably significantly better economy than you will get here in NZ, we don't have the long stretches of motorways that are most economical. Going anywhere other than in the main centres means a lot of hilly/windy roads. I don't get that in a V6 even when driven nicely around here.
Great economy. Do you have AFM still doing its thing?
Just drove Adelaide to Sydney in our 14 Prado avg 9.9l hell it was hot got 45 in one spot
Yeah it's hot as Hades!
Yeah, I had AFM tweaked in the tune. It cuts in sooner and hangs on longer on inclines. So, a broader operating range for the AFM. Well that's what I asked for anyway...
Too true mate. That makes all the difference.
Ok so seems with good tune it wont be to much worse with a cam. No way I could get economy you guys in Australia get. Roads I travel on are hilly and windy. Im stoked to get 11-12 L/100 km
Cam and gears need to be planned really, but as a general rule a low to mid 20s duration cam will be more efficient at 1800 than high 20s early 30s.
Also a late intake close like that is going to run cool on highway and have less swept volume than the stock cam.
From 3600-4500 there is no comparison, the late intake close / decent overlap uses more fuel than stock.
So drive yer cammed V8 like a Prius and you likely get better than stock on flat highway given same gears. Give it a squirt as appropriate on-cam mid-range due to hilly terrain and nah, sorry. It is a big volume, built for mid range punch, no getting around that.
Yeah its not excessive push I drove my ss for about six momth with the cam and standard TC but in traffic what you describe drives me nuts especially in a motor with a bit of a stick in it. Even a small stall ugrade would make it more comfortable in traffic. If you dont have this problem I evny you.
Not to mention your disgraceful fuel prices..
Yea no kidding mate!! Having said that I put 3 months rego on my VE SS the other day it cost me a grand total of $25 so there’s some give and take
Well that more than makes up for it then! Do you guys still have to buy diesel kms over there?
Yep, still buy diesel Km's here. I did the rego on our's just before xmas and it was about $100 for a year IIRC and to think, the majority of that cost is ACC levies (which will most likely be going up again soon).
So after talking with local shop and trying to figure out best cam for my car. Suggestion is I go for a 228/236 with either 112 or 113 lobe with .600 lift.
Is anyone running this as seems not the most common cam. My aim is for mid range power.
Well is a massive duration, not needed unless you’re racing upper mid to upper.
Likely a handful cruising.
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