"Antilag tune" is vauge
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08-19-2014
"Antilag tune" is vauge
08-19-2014
Tried timing retard, timing advance. Large and small amounts on both sides.Originally Posted by darkhorizon
DIfferent fueling settings (RICH, LEAN IN BETWEEN)
The best setting was stock timing map down low with 12.5 a/f ratio.
But remember I stall at 1600rpm and under 8 psi of boost 2700rpm within 3.5 seconds, that is very low and it acts different than the other motor that stall easily to 3600rpm + under boost in 2 seconds
08-19-2014
Raised the boost. Manage to get half decent auto shifts on the 4t80e trans.
Big power now... can't wait for this weekend. This video shows a little of what it is like inside the cabin.
08-19-2014
DAMN!!
Make sure you record the track runs. 1/4 mile would be nice to see
08-25-2014
How'd she do?
08-25-2014
Nevermind, saw the video. Nice work!
08-25-2014
For those following the progress on this thread... it ran 9 second 1/4 miles three times in a row.
First two runs at 60% throttle in the back. Last run 9.72 @ 139 mph full throttle on both.
Went for a higher boost run on the rear engine and at 20 psi on the launch we hurt the 4t80e trans.
It would have made a very quick pass as I left with more boost off the line plus more boost all the way to the top as well.
Very hot and humid day at the track.
08-25-2014
Great!
Have you had a chance to look at it yet?
How did you hurt it? How bad?
08-25-2014
It still works well, shifts all gears. It just can't get any torque applied. And randomly we lose reverse or drive but it can always move forward by going down to 1st gear position on the shifter. It just slips or pops out of gear when I brake boost on it.
08-25-2014
That is just amazing. Great job.
08-25-2014
Sent from my iPhone
08-25-2014
chunky chunky. gritty gritty.....yup thats hurt for sure.
08-25-2014
External trans filter
08-25-2014
WOW!!!! Just WOW!!!
08-25-2014
I may have missed it somewhere, i'm curious as to how much this project has ran you, including the cost of the car. If you don't mind. If you'd rather not say that's fine.
08-25-2014
I think he pays his guys with that Canadian brewski Eh
08-25-2014
I wish...
It's hard to say how much is in that car. Most of it is time.
I have about 10K in parts total with the car. Most of that money is for the turbo kits that we built (the turbochargers are the most expensive part of the project)
Then the rest is labor. I probably paid over 6K in labor total. My cost for my employees at the shop. And I'm not counting my own time, so 10K total if I pay myself.
If we were to build a replica, it would talk half the time or less. So I would charge 10K to build one but you supply the parts to build and the car.
Total for a customer that car would cost around 20K. 25K for the final details and a 100% turn key car (better suspension than what I have, complete wiring job etc..)
08-25-2014
That's really not bad honestly. Cool car for sure
08-26-2014
You.... broke a 4t80e.. c'mon man.
08-26-2014
id reserve judgment on that. just from not changing the primary pump filter when he yanked it from the junkyard.
its pretty well known that filter being a pita to replace is the leading cause of failure...most people dont wanna pay 9 hours of labor to change their trans filter. its laughable that gm says its "recommended" replacement is at 100k.
howd that 100k maint interval dexcool workout? any of you ever leave your filter in yer trans for 100k?
im gonna go out on a limb here and figure they knew it was an issue, and instead of that filter being replaced at a 30 or 60k interval, its in there for far too long getting clogged up, and more clogged it gets, the better of a filter it is, so it clogs up exponentially faster. but hey its a maintenance item, and the trans will easily last till out of warranty, even starving for fluid (gotta love trans adaptives that hide potential problems from the owner! yay!)
i kept the TR's shattered trans going for a while after we shredded a tq converter by replacing the filter every 100 miles lol, every time id hear the cold start whine...
to be fair the 80e's ive pulled have all had grit and **** in the pan, the fill cap has a habit of collecting crap around the lip and when you yank the dipstick a surprising amount of crap can fall in, oil change joints don give a fuuuuck...
as for the external filter, it would help, i dont like the potential restriction on the trans cooler lines (doubt people would spend the $ for a bypass filter setup) but the simple fact is that when you buy a good used 80e for 150$, you spend 15$ for a new filter and install it, your good for 50k+
the only things that are an issue are the solenoid failures, and known issues that sonnax has fixes for, which are in the valvebody in the lower pan, much easier to get to than the 65e...
shoot though at least when you have the side cover off changing that filter... the 2-3 accum is staring at you, yank it out and shove some 5/16ths spacer nuts on the shaft.
i wouldnt say he found the true weak point of the 80e....he just found the common failure due to lack of filter service.
it'd be like saying the 3800 is weak as hell cause it blew up with leaking dissolved 100k+ mile LIM gaskets ****ting dex internally.
i still think it'd be a swell idea to have the pcm control it so you can at least record trans data...im not saying' im just sayin....
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