Results 301 to 320 of 402
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03-03-2018 #301
Been doing lots of tweaking and testing and doing as much driving as possible. Rain, cold weather, and wind have made it challenging. One bit of bad news is the blower motor died on me. Figures - things were going so well. Hopefully I won't need heat, defrost, or AC for a few weeks. Want to keep the car on the road and enjoy it for at least a few weeks before I worry about getting a new blower motor installed.
As mentioned earlier I've been trying make some adjustments for all the tire spin. With all this new crispy throttle response the tire spin is out of control. My 305 45 18 drag radials easily break loose in the first 3 gears and even in 4th one time so far. Off the line in first is ridiculous of course. So I made a few adjustments:
1. lowered the PSI in my drag radials from 30 to 22
2. lowered the settings on my single adjustable QA1s from level 4 to level 1 (the softest setting)
3. lowered my 2 step on the MSD box from 3500 RPM to 3200 RPM for launching
The drive with adjustments 1 and 2 had some interesting results:
With the drag radials that low the ride is definitely more bouncy and at times I can feel kind of a wobble in the steering wheel but it's very slight. Good on the hwy too and after going over a few dips in the road it's not bottoming out or anything but it does bounce the car a few times more than normal on those dips - can live with all of this but it definitely is a more pleasurable ride with the tires at 30 psi. The question is - will it lessen the tire spin at the lower psi?
I was really surprised with the driving with the shocks on level 1. I had driven like this before with my previous front end set up and steering box (used to be b-body spindles, AGR steering box, and no chassis brace) and the car was dangerous in corners if I had any speed at all. With the new AFX spindles, chassis brace, and Lee 800 steering box not only is it safe to take corners, but it actually corners pretty well even at speed. I did get on it hard in 2nd while I was switch lanes to the left and the front end lifted pretty high and I had to come off it. But I'm thinking all those upgrades to help the car corner in autocross better may also help it be safer to drive when I have it set for front end lift/straight line performance. That's a pleasant surprise I was not expecting. I'm going to test different settings on this for hard cornering. Wondering if I can go with a level 2 and still get decent front end lift for launch but still be able to corner hard?? We'll see.
For the 3rd adjustment, the 3200 launch decreases the tire spin drastically. Unfortunately I've only been able to get out when the temp was in the low 40s and there's going to be more spin with the drag radials when it's that cold but I could tell it was much better than launching at that 3500 RPM even in the cold. Will keep testing that out.
Last I started playing with the Go EFI 8. Frank put my warm idle at 1000 RPM. That's the idle the system keeps the motor at once it hits 170 degrees. This RPM keeps everything running great with no fear of the car stalling in any condition, hot, cold, right after I get on it, with AC on, with fan 1 or fan 2 on etc etc. but....I can't hear the lope of my cam. I like the way the car idles at 850 RPM. Sounds like a muscle car should. Every RPM you go above 850 smooths that idle out and that amazing lope sound. So...I started trying to find the sweet spot for as low as I could go without the car stalling. Previously I would have to open the hood, remove the breather springs, take the breather off, take the aircleaner off, then adjust the idle screw on my carb, put everything back on, close my hood. Then of course with the carb what dialed it in perfectly in my driveway completely changed if the car was hot, cold, right after I get on it, with AC on, with fan 1 or fan 2 on etc etc. but now....all I do is press 4 buttons on the hand held device and drop it down in 10 RPM increments to whatever I want. The hood remains closed. That is just so amazing to me. Anyway - dropped it from 1000 to 950 - no issues. Starting to sound better. Then dropped it to 900. Went on a cruise and it's now go that lope I like. Went through McD's drive through - took about 10 min with the idle at 900 - was loving it. Got my food at the end pulled forward to put my drinks in the drink holder and it shut off. Started right back up but maybe 900 is a little too low. Bumped it up to 910 and will try that for a while.Joe Lincoln
Lime Green 71 Olds 442 Convertible
Upgrades thread: https://www.pro-touring.com/showthre...ible&highlight=
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03-03-2018 #302Here's all it takes but bump the warm idle from 900 to 910:
https://www.youtube.com/watch?v=z_nwhiALYbk
Just drove for about an hour never stalled out on me and have a little of my lopey idle back. But...once the new blower motor is installed I will have to test running heat and AC then sitting at a stop light.
Also used my 0-60 feature on my GPS speedo for the first time - showed 4.59 on my first ever attempt with lots of tire spin. Not sure how accurate that is but need to try to get it under 4 seconds. Will be fun to try. With my 4.10 rear and 2.66 first gear and 1.78 second gear I hit 60 mph at about 5200 in 2nd. I notice most of the new American muscle super cars with manual transmissions are geared to hit 0-60 in first gear which supposedly drops a few tenths since you don't have to shift. Then most of those same cars cross the traps in 3rd for the quarter mile for one less shift there too. But that's a topic for another post and sadly I think manual transmissions are going bye bye because the new 8 or 10 speed automatics are simply faster then any manual trans can be no matter who is driving.Joe Lincoln
Lime Green 71 Olds 442 Convertible
Upgrades thread: https://www.pro-touring.com/showthre...ible&highlight=
03-03-2018 #303Got another 0-60 run in - still too much tire spin 4.53 this time. Going to try lowering the 2 step from 3200 to 3000:
Joe Lincoln
Lime Green 71 Olds 442 Convertible
Upgrades thread: https://www.pro-touring.com/showthre...ible&highlight=
03-03-2018 #304Registered User- Join Date
- Sep 2013
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- sw Kansas
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