360 no power on acceleration

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barog said:
I just found some notes from when I got this engine.
The guy said it was bored 30 over and had flat top pistons installed.
596 heads
The torque converter is rated 1700.
I will have to figure out the gears, but I would assume stock.
The engine and car did not come together, the stock engine was a 318
Click to expand...
OK, that may help.... if stock flat tops, .100-.110" in the hole (below deck) and open heads and a standard Felpro head gaskets, the static CR would be on down around 8.0:1. Dynamic CR around 6.3..... well below stock DCR. (And some stock replacement types have a shallow dish in them which would lower the numbers even more.) Is there any piston part number in those notes?

Stock-ish TC. May well be a low rear gear. Tnx for the info...helps.

Once those compression readings are in, and we know for sure...... are you open to changing head gaskets and TC? Or even the heads?
 
barog said:
I just found some notes from when I got this engine.
The guy said it was bored 30 over and had flat top pistons installed.
596 heads
The torque converter is rated 1700.
I will have to figure out the gears, but I would assume stock.
The engine and car did not come together, the stock engine was a 318
Click to expand...
So you say the car runs good and revs good and all that in the driveway but when you give it the gas it just seems really weak? What dose the kickdown linkage look like going to the transmission?
 
we may also have to do how many times does the Driveline turn with one turn of the wheel and find out what gear you have back there?
 
nm9stheham said:
OK, that may help.... if stock flat tops, .100-.110" in the hole (below deck) and open heads and a standard Felpro head gaskets, the static CR would be on down around 8.0:1. Dynamic CR around 6.3..... well below stock DCR. (And some stock replacement types have a shallow dish in them which would lower the numbers even more.) Is there any piston part number in those notes?

Stock-ish TC. May well be a low rear gear. Tnx for the info...helps.

Once those compression readings are in, and we know for sure...... are you open to changing head gaskets and TC? Or even the heads?
Click to expand...
At this point I am trying to find the cheapest/fastest option. I just bought the TC. I could change the head gasket.
If I start talking about changing heads, then I might just get a rebuild stock 360 engine.

Going to get a compression tester in a few minutes.
 
j par said:
Can you get out on the road and hold it down in the first and punch it up to about 5 grand and see what happens?
Click to expand...
Taken apart at the moment. It has a hard time getting anywhere near 5 grand.
The linkage is on, not sure if it is set right, been testing mostly around 1st gear.
 
j par said:
what do you think of this no power and questionably hooked up transmission linkage?
Click to expand...
not the linkage……… even if the car was stuck in 3rd gear, eventually it would pull out of it and get to moving. Not only that, the op appears to be too knowledgeable to not know if he is taking off in 3rd gear. To be honest, trouble shooting is hard over a computer screen. All we can offer are thoughts and ideas at this point. There are some things on his combo I don't like at all, but it's not covering all his symptoms.
 
318willrun said:
not the linkage……… even if the car was stuck in 3rd gear, eventually it would pull out of it and get to moving. Not only that, the op appears to be too knowledgeable to not know if he is taking off in 3rd gear. To be honest, trouble shooting is hard over a computer screen. All we can offer are thoughts and ideas at this point. There are some things on his combo I don't like at all, but it's not covering all his symptoms.
Click to expand...
I've had mismatched combos like this but never to the point to where it wouldn't run. That's why I was asking what happens at about 4 or 5 grand and 1st gear? If it all of a sudden wakes up and you bang second?
 
j par said:
I've had mismatched combos like this but never to the point to where it wouldn't run. That's why I was asking what happens at about 4 or 5 grand and 1st gear? If it all of a sudden wakes up and you bang second?
Click to expand...
but that's not happening with that cam trying to "wake up" at 5 grand with stock exhaust manifolds..... Cam wants to start pulling hard at 5 grand, exhaust manifolds want to start to shut down at 5 grand....
 
318willrun said:
not the linkage……… even if the car was stuck in 3rd gear, eventually it would pull out of it and get to moving. Not only that, the op appears to be too knowledgeable to not know if he is taking off in 3rd gear. To be honest, trouble shooting is hard over a computer screen. All we can offer are thoughts and ideas at this point. There are some things on his combo I don't like at all, but it's not covering all his symptoms.
Click to expand...
It's on there I'm not sure if it's at right was his comment?
 
My bad I thought I had read everything before I made my comments but it looks like the op has already ran the transmission without the linkage for sometime and then put it on and still not adjusted correctly. This is a mess..
 
The advance curve and amount is all wrong! That's the first issue. Get that right and the engine will perform better. You NEED to alter the internals of the distributor. PERIOD!!!

The TC is a stock piece.
 
The question could be how long does it take for a 904 to burn up with no kickdown linkage hooked up testing out a would-be performance motor? Against the freeway gear?
 
is the dist weights frozen on shaft not moving/ will the rotor move a little maybe someone put a lean burn dist in it with no advance ?
 
barog said:
Alright here are the compression readings, I cycled the engine 4 revolutions.
1- 130
2- 144
3-140
4-135
5-140
6-137
7-138
8-140
Click to expand...
Yep, compression numbers look quite decent....especially for that cam... assuming the gauge is accurate. Much better than I was fearing. 'Splains better how it pinged.... I'd still check the cam timing to see if it is somehow waaay advanced.... that would explain those compression numbers... and why it might be hard to rev to 5k. Even with stock manifolds, it ought to wake up somewhere over 3k.

Now, assuming the cam is timed right, with a stock-ish TC and a tall rear gear, it will still have trouble spinning the tires with this compression; with a stock TC and 160 psi cranking pressures and a 3.08 rear axle, my old Ranchero was not much of a tire spinner..... but it WOULD take off well. So if your rear gear is low, then it just may piling on. But, with some revs, it should eventually pick up better than it is sounding like.

OP, I'd next be checking the outer ring on the damper to see if the mark on the damper is right at the zero mark of on the timing cover when cylinder #1 is right at TDC. If it has slipped, then your ignition timing is going to be retarded versus what you think you are setting.

It's time to find out your rear gear ratio.
 
teringer said:
is the dist weights frozen on shaft not moving/ will the rotor move a little maybe someone put a lean burn dist in it with no advance ?
Click to expand...
IIRC, the OP said that his initial was down in 14-ish or so with the timing set to the low-mid 30's, so it sounds like it is advancing.
 
nm9stheham said:
Yep, compression numbers look quite decent....especially for that cam... assuming the gauge is accurate. Much better than I was fearing. 'Splains better how it pinged.... I'd still check the cam timing to see if it is somehow waaay advanced.... that would explain those compression numbers... and why it might be hard to rev to 5k. Even with stock manifolds, it ought to wake up somewhere over 3k.

Now, assuming the cam is timed right, with a stock-ish TC and a tall rear gear, it will still have trouble spinning the tires with this compression; with a stock TC and 160 psi cranking pressures and a 3.08 rear axle, my old Ranchero was not much of a tire spinner..... but it WOULD take off well. So if your rear gear is low, then it just may piling on. But, with some revs, it should eventually pick up better than it is sounding like.

OP, I'd next be checking the outer ring on the damper to see if the mark on the damper is right at the zero mark of on the timing cover when cylinder #1 is right at TDC. If it has slipped, then your ignition timing is going to be retarded versus what you think you are setting.

It's time to find out your rear gear ratio.
Click to expand...
So, I am a little confused. You are saying I have too much advance, but crackedback said I should add 4 degrees to my cam timing.
The dampener was on 0 mark for TDC.
 

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