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Holden202T wrote:geez now your getting fancy!

I just hate leaving things bare metal unless they are plated or 2 surfaces are being mated. It was clean as a whistle in there already from when I picked up the block so was not real effort to give it a few coats.

vlad that looks ace. top job.

Cheers!

Will soon have a BIN posted up, just refining the permanent "lean cruise function"

rather than stuffing around with all the lean cruise setting, I opted to take a page out of the greenfoam tuning books and setuo my target ARF table with lean cruise built in. So thats been working great for 2 weeks so far and made some good gains at 15.8 ARF, how trying 16.2, said to be theoretically the best AFR for economy. I also have just bumped up timing 5% more in the corresponding cells and 3% in the transition column to 14.7, my value there is 15.8.

So far Im averaging high 8s L/100 wit highway and lots of city/peak hour. Not the best but has to be close to the best it can do given the condition of the engine.

A good healthy engine should get into the low to mid 7s L/100 average with pacemakers, manual and good tune.

If this proves successful, I will implement this across all my cars.

I am aware that lean cruise settings can be setup to do the same, but this way Its always on no matter what and setting up extra timing advance is easy, rather than setting up flex tables to do the same job.

few days ago, ready to paint.

bit later, my collection of bits.

did a log before and timed my 0-100. couldn't to a hard launch because of the clutch and so I did a bog down launch from 5km/h. Got 7.3s lol. Fair bit faster than the VR even though this has less power. The VR must be much heavier than what the books say.

VP ftw!

Years ago I did a economy run in my old VN just to see what it could do (by economy I mean driving within the legal speed limits and no hard acceleration etc). Ended up averaging 6.9 litres/100km. All the usual mods, including 3.45 gears and a bit of tuning.

On long weekend away, been driven hard with a full load (4 passengers + full boot load of cargo) it averaged just over 10litres/100km and that included a return trip from Rotorua to South Auckland in 2 hours and a couple of minutes.

She was a damn fine car

yeah I think a lot of people don't give the old buick enough credit.

remote oil filter ? or just a cooler ?

My VR bog stock with auto did 700Km on a tank driving from Adelaide and I drove it pretty hard some of the way.

I got 7.6L/100 average out of the VP S auto driving from Mount Cotton to Newcastle with 8L left in the tank. I drove that hard too haha. Took the Pacific highway and there was lots of roadworks and slow drivers need to be over taken. I loved it so much, at every traffic light was a drag race haha. I have no idea how it only used that much fuel.

It worked out to be over 800k per tank for what wasn't anything like economical driving over than on the highway. So could be a lot better still.

The thing is both these cars are like new, VR being 103k and the VP is 73k, so fresh engines definitely help with efficiency. Imagine with tune! 1000k out of a tank seems doable.

So anyway, today I have been testing different target AFRs. 16.2 is too lean and the economy drops, 16.0 improves a fair amount and the 15.8 I used before was also good. So somewhere from 16 to 15.xx is the range. So will be testing lower than 15.8 later to see what its like. 14.7 is definitely not good haha.

Also I have concluded the VR models are a lot heavier than they are on paper. Because calculation based on the their spec'd weight and actual power should accelerate a lot quicker than it does. The VP is significantly faster with less power and calculations reflect the actual times it does very closely. So a guesstimate puts them around 1450-1500 for executive where on paper its 1360

VP is 1332kg and thats pretty bag on for the figures it does.

VN/VP are by far the best models to work on.

I never played with lean cruise either. Just timing and VE really.

I won't say how fast I was going as it would probably be considered self recriminating.... at what speed over the limit is it a mandatory 28 day loss of license?

Great fun to drive though, a 5 speed with a billet short shifter. Almost no traction in first unless you took off grandpa styles. even though it had a really tight LSD with good tyres.

Holden202T wrote:yeah I think a lot of people don't give the old buick enough credit.

remote oil filter ? or just a cooler ?

Remote filter. I hate those little oil filters.