High Compression 3400/3500 NA build

[mfuller]

Sounds great! Good job.


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[1988GTU]

misfires fixed?

[02GT_Skyhigh]

http://youtu.be/IKBSsVlGepw

[02GT_Skyhigh]

Teaser. Stock Tune.

[02GT_Skyhigh]

Why would you drive it if it's missing on two cylinders?

It got towed to my house and i needed to turn it around so i could have light to work on it..

[3400-95-Modified]

Why would you drive it if it's missing on two cylinders?

[02GT_Skyhigh]

moved injectors around and the miss follows the injector..
Got the stater issue figured out. Hooked up my wideband and im running at 10 flat to 10.5
super rich. I imagine the shop couldnt finish the base tune, due to the car running on 4 cylinders.
Simple problems... all and all im very happy so far!
I did a lap in my circle! Whohoo!!

[02GT_Skyhigh]

I believe im misfiring on cyl 3 and 6. I thought I may have put injector plug 3on6 and 6on3 but i just swapped them... still missing.
The header is cold after 10 seconds of running on both cylinders. I am getting spark. I imagine it has something to do with fuel.
when i take the jumper wire(which i have always had) from the alt to batt+ it makes the stater motor spin... not engage. just freespin...
Anybody want to help me out with maybe a rudimentary drawing of the wiring too that biii??

[02GT_Skyhigh]

The Car is running!!
Something is up with my starter, it stays engaged, I have to start it then pull the stater relay.
The alternator isnt charging the battery. Im going to hook my 4ga wire from Alt to +Batt for my stereo. should fix that problem.
I have a bad miss on cylinder 6. Im getting spark. I have to confirm compression and fuel...
Im going to pull the front valve cover to confirm that cam didnt push one of the rockers out of its threads. ( I heli-coiled all the rocker threads on the back head)
Going to work on it now.

[caffeine]

Pretty much exactly what I did with my 3500. Except I used stick on sandpaper on old valves and had the sandpaper overhang the valve to cut a little larger of a circle.

[02GT_Skyhigh]

Them are my stock 3.4 heads. The valves I used to 'fly cut" were 0.010" bigger than the Valves on the 3.5 heads that I will be running
Used clay to check clearance and there was none...
Cut down 0.060" for clearance, then De-burred and polished them up with a dremmel

[Will'sFiero]

I was thinking "Wow, I didn't know harbor freight had flycutting heads... those sure look crude"

[4x43100]

Okay that makes sense. This build is very interesting also, curious to see what kind of numbers you end up with.

[ericjon262]

Edit: wait was that to cut the pistons by spinning the valves in an old head? I just realized the picture with them in a head was an old head.

bingo.

[4x43100]

I know why you cut the pistons, but what is with the valves being notched like that? I have never seen that before.

Edit: wait was that to cut the pistons by spinning the valves in an old head? I just realized the picture with them in a head was an old head.