SOLD - 1600 TURBO + oval + downunder

[petew]

Hmmm....

So, all my work in trying to get the AE working better, failed. Big fail. I'm sure I'm missing something, but I just don't know what it is. Adding more fuel made it stumble more. Moving the TPSdot threshold down made it really jerky. If I mash the throttle, there's a half second gap, then it kicks in. Same with idle. Really, really confused.

[Clonebug]

Did you turn off the AE and then let autotune fill in the VE???

You need a good tune before you finish it with AE.
I moved the threshold so high it basically turns it off then I let Autotune tune the area right above the idle.
It's basically the area right above the idle bins and you can see it when you take off from a standing start. You shouldn't have to rev it way up when you take off.
All you do is give it a slight throttle to raise the kpa from say 55-60 to 80-90 at idle and low speed. Let autotune fill those areas in without AE on.

If you let AE add the fuel then autotune will lean those areas out and and you get a crappy running engine if you change your AE settings.

You need your AFR table filled in correctly and you also need to have your Lambda delay set up correctly...You did do that didn't you?????

Set the AFR right above the idle bins a little richer than your cruise setting.

My 600-1800 rpm bins from 30-75 kpa are set for 13.5 AFR for idle.
My 600-1800 rpm bins from 90-125 kpa are set at 12.8 AFR for load on take off. You only hit those bins when you let out the clutch at idle and load the engine. Give it a little more fuel to keep it happy.
Once you drive it for a while with autotune and no AE you will see the VE start getting bumped up. It will add a quite a bit of fuel to make the engine happier there. It will probably be almost double what idle takes.
Once that area has the correct fuel you will find that you need very little AE to take care of the slight hesitation that might be left....if any.

Don't rush it.....I get in first or second gear and load the area with Autotune on and let it tune it. I have a pretty nice takeoff and idle now.

A lot better than when I was trying to do it with AE.

[petew]

CB, thanks for that explanation. I actually got it working a LOT better yesterday by pulling out a bunch of fuel. I think my WUE and ASE are also way too rich. I'll still try your suggestions too.

[petew]

HI all, been super busy with the new job. Actually thinking seriously about selling the car. I need a daily it seems and I'm just tired of working on it. There are no local specialists and my garage is tiny and has a sloping floor. We may buy a house with a better garage, but even then, that will seriously eat into my ability to do upgrades. My other big bug bear is I really want an LSD for it for motorsport. That's a $3000 commitment that my wife will just never be happy with. If I sold it for market price I could get a LOT of fun car.

[buguy]

Boo

[Chip Birks]

HI all, been super busy with the new job. Actually thinking seriously about selling the car. I need a daily it seems and I'm just tired of working on it. There are no local specialists and my garage is tiny and has a sloping floor. We may buy a house with a better garage, but even then, that will seriously eat into my ability to do upgrades. My other big bug bear is I really want an LSD for it for motorsport. That's a $3000 commitment that my wife will just never be happy with. If I sold it for market price I could get a LOT of fun car.

What about a spool? They are cheap in comparison...

[petew]

I've thought about a spool. Talked to a few guys who've run them in race beetles. The word was, don't do it on the street. Impossible to turn at low speed and super dangerous in the wet. The other problem being spools are also completely illegal for the street over here.

[Clonebug]

I've thought about a spool. Talked to a few guys who've run them in race beetles. The word was, don't do it on the street. Impossible to turn at low speed and super dangerous in the wet. The other problem being spools are also completely illegal for the street over here.

I thought it never rained in Aussieland.....and second.......don't turn in front of the law......

[buguy]

I thought all you Aussies used the hand brake to turn?!

[Chip Birks]

I have more street miles on my spool than most. I hardly even notice its there anymore, at least until I'm pushing the car, or doing a u-turn. Otherwise its no big deal. Driving on radials is very different than my slicks. Slicks magnify the effect of the spool by a lot. Radials just slip when they need to.

The legality things is a problem though, you've done a ton of work to make it legit and legal over there. A spool would be a stupid way to ruin that. Intersting that there are actually laws against them though.

[Ol'fogasaurus]

I hadn't heard the term "Spool" for so long I had forgotten about it and had to look it up.

I found this but no URL for it: "Posi = Limited slip. Clutch packs in the diff enable wheels to spin at different rates, but it requires some breakaway torque to allow this. Like an open diff, one wheel is allowed to spin slower than the one getting the engine's power.

Locker - There's a couple kinds, but I'll stick with the most common - the mechanical locker (i.e. Detroit, Lockrite, etc.). Opposite of an open/LSD diff. Positively locks the two wheels together under power, however, if needed, one wheel can spin faster than the one under power. This is why you let a locked vehicle coast around corners.

Spool - This positively locks both wheels together at all times. Welded spider gears generate the same effect (otherwise known as a Lincoln locker). ARB air lockers are essentially a spool when they're engaged. Straight spools are nearly indestructible due to their lack of moving parts, but axle shafts and gears then become the weakest link. This is only practical on a trailered drag car or an offroad only 4x4, IMO due to the fact that when you go around a corner, something has to give, typically the traction of the inside rear tire."

Never heard the term Lincoln Locker before but welding the spiders I have. Dirt cars (at least used to do this) and maybe some kinds of off-road cars might but again, there are drawbacks to doing this and using spools especially when tow-trucks are a hundred miles away or can't get into the area .

Lee

[madmike]

Thinking about you the other day Pete,,,we haven't heard from ya , just figured your busy with the new job & house
please dont sell the 'Bug' it's family now ,,, ever think about a 'Super diff' ?

[woodsbuggy1]

WOW I hate to here this, hope you don't have to sell her. I know that at times life can be challenging, but often it can be an opportuinty to learn new skills and inspire others.
Good Luck Pete
Kenric

[petew]

I don't have to sell, but I think I'm done working on it. It's already got a super diff, but it regularly spins the inside wheel at khanas and it's really frustrating. A hydraulic handbrake would fix that but they're illegal too.

I think I just need a different car with a more affordable driveline. I hate to do it, but I think it's the best use of time and money. Whatever I get next will probably turbo and 1980s or earlier. Anyhow we'll see if it sells first. Don't count your eggs and all that.

[woodsbuggy1]

Pete, the Buick Grand National would make for a very fun daily driver.