1970 Olds Cutlass S Rat Rod Style

Well, the car runs great, not surprised with the Qjet I custom built. I am running the ported vacuum source for vacuum advance, don't need a ton of timing. The rear air door was really loose for some reason, had to set it twice tighter. Boy does the posi rear work. The $50 Amazon manual trans controller with the Fastgate makes easy driving. I still need to figure out the torque converter lock up. Need to make sure the switch works. No instructions except the pictures on Amazon from that seller. Even without, 2000 rpm at 60 mph is very comfortable cruising. If Edelbrock ever releases the new heads, it will go on my nice 403 block. It looks really nice in the cylinders, had 160 psi compression. The stock crank needs turned, The local machine shop did fine with the crank grind. Hopefully will go.010" on the mains, have them and whatever on the rods, didn't spin but they down to copper. I threw bearings in it, knock went away but oil pressure was still awful. With the .040 Mr Gasket MLS head gaskets, it would be 8.87 to 1. Cometic .027" MLS would give an even 9.1 to 1 but not worth $350 for a pair shipped. The mild 218/218 roller cam would work great with this 403.
 
Which controller did you go with, one of this type?

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Yes, glad it worked.
I don't want to sound negative, but it may not work long term and I'd hate for it to cause you trouble- I looked into those and everyone I spoke to said they ended up frying their trans. The best solution (for this box) from what I'm told is to use the trans plug and to wire in your own switches, or to use micro switches that activate when placed in each gear. One guy on Reddit said it only worked for about 6 months the way it's intended to, then he ran into problems. I really hoped they worked as advertised but it sounds like it's a big risk.

Screenshot_20241219-043509~3.pngScreenshot_20241218-070444~2.png

Again, I'm definitely not an expert but felt you'd like to know.
 
I'm not too worried about max line pressure on a 4L80E, a 4L60E is glorified junk in comparison. I did install a Transgo HD2 shift kit just before installing this controller. I have all gears from what I can tell but no torque converter lock up. I don't think the torque converter automatically locks up, hence the switch. It was running about 250 rpm lower than my test drive, 1750 rpm at 60 mph after the 3.08 posi swap. Jake Shoe sells one of these and he knows a lot more than me about transmissions. Nothing else has gone to plan, not surprised if this fails too.
 
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I'm not too worried about max line pressure on a 4L80E, a 4L60E is glorified junk in comparison. I did install a Transgo HD2 shift kit just before installing this controller. I have all gears from what I can tell but no torque converter lock up. I don't think the torque converter automatically locks up, hence the switch. It was running about 250 rpm lower than my test drive, 1750 rpm at 60 mph after the 3.08 posi swap. Jake Shoe sells one of these and he knows a lot more than me about transmissions. Nothing else has gone to plan, not surprised if this fails too.
Dude, if JakeShoe sells it then it can't be terrible. I've never met him or purchased from him but I've copied down lots of info that he shared. The guy has definitely forgotten more than I currently know about transmissions.

The switched units I was eyeballing had a 3 position switch: Auto, Off, & On. At any rate, I only wanted to share the warnings that I was given and I'll keep my fingers crossed for ya. Being an '80 means it'll probably be perfectly happy though.

Edit: said 3 pole, meant 3 position
 
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I appreciate the warning, I found either no reviews or 3.5 to 4 star reviews. Then I stumbled across one on Jake's site. Mine has a light and 3 way regular rocker switch. No instructions on wiring the rocker switch.
 

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So I found this diagram.
Screenshot_20250424_193221_Amazon Shopping.jpg

If I move the toggle switch to the one position, it instantly pops the fuse. In the two position, it does nothing. I will double check the trans plug orientation, can be put upside down. I may bypass this controller all together for lock up. I am also sure, not getting first gear on the shifter. Just by the rpm, can do 30 mph in that gear, would be screaming in first. I can feel all the gears except second, 3rd and 4th are reallyclose together on the Fastgate. I don't know why GM has such a big sweep between park and reverse on the 4L80E.The car was almost stalling yesterday morning from stops, ran perfectly today, same time of day and drive, weird. Other than that weirdness and after adjusting the secondary, other than an occasional pop driving, my Qjet runs great. The gas is non ethanol premium from last fall. Other than that weirdness and the occasional slight pop under harder acceleration, it runs great. Another issue I found is the vacuum advance is delivering 29 degrees if I put manifold vacuum on it. I adjusted it 5 turns counter clockwise, no difference. I thought they put our 20 degrees max, almost 30 to my dial back So I ordered a new Petronix adjustable vacuum advance. So I put it to the factory ported advance port for now. I figure first gear and about 10 degrees vacuum across the board will make a big difference and probably with fresh gas will eliminate the occasional pop back, probably from too much timing.
 
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