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Messages - Steve Wood

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IHADAV8 Playground / Re: Board issues
« on: Today at 09:19:28 PM »
They offered a turbo model for 2 or 3 years but most are aftermarket installs. Makes for a fun ride.

IHADAV8 Playground / Re: Board issues
« on: Today at 02:28:12 PM »
BRADyetoch! Now that your eyes are better, you better come down and spend some time in west Texas! I am currently rebuilding the shifter on my Miata and I have a set of new coil overs on the way.  If you don't like working on cars smaller than you can see, you can find the damn oil leak on my GN.  It's fun to drive after I changed converters and can stall it at 4000 rpm!  I will give you something to smile about!  Damned emoticons won't work!

General Buick Tech / Re: 60 ft blues
« on: Today at 02:10:46 PM »
A quote from Eric. 'The reason is the boost typically moves very rapidly through this area and it makes it difficult to hold the target AF.' He's referring to mid boost.

That's what I found with the SD chips and that's why I said it blows thru too quickly.  I could hardly tell I changed the parameter on the log...

General Buick Tech / Re: 60 ft blues
« on: Today at 01:50:09 PM »
Steve...Erics recommends leaving mid boost turned off. You've run/ran 6.1. Is that the best option?

Brad, I did not mention mid boost...positi on 4 is base wide open throttle fuel for ALL gears.  As I understand it, it does not affect idle fuel or cruise fuel, but, it pulls fuel from the wot fueling if it's too rich to begin with..then you can use the AF settings in 1 and 2 to get what you want more easily. Just another means to an end :)

But, yes, I agree with leaving it off.  You blow thru it too fast in my opinion and you might just manage to eff it up.

General Buick Tech / Re: 60 ft blues
« on: Today at 11:27:49 AM »
The stall on a turbo car is influenced by the A/F, the combustion chamber heat, and the boost.  The prior log Tim provided clearly showed a stall of about 3025.  The current log with the alky spray turned off showed a higher stall up around 3700 or so.  This happened because the combustion chamber was much hotter and made more power at launch with the alky turned off.  If the timing is increased, or the AF leaned down, it will probably increase even more.

The one thing that I learned since the initial comments is that he has a relatively small turbo, with a good exhaust housing, and it is a Ball Bearing model so it will spool very easily if given the chance.

General Buick Tech / Re: 60 ft blues
« on: Today at 10:13:36 AM »
Tim, as you noted, it was doing a dance off the line. Hopefully, the new bar will help that.  When it's installed, I think I would set position 1 to 11.1.  I think I would leave position 2 at 10.8 because I don't think it will be very sensitive once the chamber is hot and I would always err on the side of caution at this point.  Small turbos like more timing, but, I think I would start with the AF first in this case...I guess it is six of one, half dozen of the other LOL

It may be that position 4 needs to come down a bit to lower the AF at the beginning of each gear.

General Buick Tech / Re: 60 ft blues
« on: September 17 2019, 10:57:37 PM »
he is running a 6.1 chip so I suspect he has plenty of room to adjust....of course, thinking is not always my long suit.

General Buick Tech / Re: 60 ft blues
« on: September 17 2019, 09:06:00 PM »
It's the rpm that he is turning along with the good heads that hurts. One has to pump a lot more air to fill them up.

I think we have suggested he try to increase the boost to see how it works.

General Buick Tech / Re: 60 ft blues
« on: September 17 2019, 05:41:31 PM »
Agreed on the converter

The turbo will move further out of it's efficiency zone with more boost and the gains will be negligible in my opinion. We are already seeing it flatten on prior logs at high rpm.  That's a big stretch for a little turbo.  Not many 49 size turbos have made the stretch.

Personally, I don't think it will pick up much more on the Low gear end, but, even if it does, he needs about 3.5 tenths to get to the tens and I think it is getting about all the air it can reasonably produce to get that tad more it needs.

I think it is running really well and maybe beyond expectations.  Great job, Tim!!

General Buick Tech / Re: 60 ft blues
« on: September 17 2019, 09:41:57 AM »
I don't think he has enough air to get there, but, for the turbo he is running and the converter he is running, I think he has done a great job of getting the most from the combo. :cheers:

General Buick Tech / Re: 60 ft blues
« on: September 16 2019, 09:25:48 AM »
You are in the big leagues now!  Nice pass!!!

IHADAV8 Playground / Re: Help Me Buy A Harley
« on: September 13 2019, 11:40:40 AM »
An Indian?

General Auto Tech / Re: Rim offset
« on: September 09 2019, 09:44:45 AM »
There seems to be some variation as to the points from which backspacing and offset are measured...ins ide lip outside lip.  I found some charts that agree with the above and others that are a 1/4 inch different.  Must not be a precise science

General Auto Tech / Re: Rim offset
« on: September 09 2019, 09:31:50 AM »
does not look right to me

General Buick Tech / Re: 60 ft blues
« on: September 08 2019, 09:13:59 AM »
Yep, that's the reason I wondered.  He has a pretty strong engine and is turning a lot of rpm.  I have seen a couple of good engines that died on top end due to insufficient air coming out of a 49. 

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