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wvumtnbkr
wvumtnbkr GRM+ Memberand PowerDork
2/14/24 4:05 p.m.

Crank has been done for a few weeks.  Got new bearings for the engine.

While reinstalling my pistons, the motor got very difficult to turn over...  weird.

Now, I'm waiting for new piston rings.

 

While waiting for parts, I took it upon myself to paint the engine (cause why not).

I also took the driveshaft back to where I had it made and they added .75" to it.  For free!

 

I'm hoping to get the engine finished up this weekend and get it installed by my birthday.

wvumtnbkr
wvumtnbkr GRM+ Memberand PowerDork
3/10/24 7:38 p.m.

So, I slacked on pics....

 

Engine went back in and everything assembled.  Neigh or Dan came over and helped tidy a bunch of wiring!

I primed the oil by turning it over several times with the coil pack unplugged.

 

Fired on first turn of key and settles into a grumble idle.

 

I let it warm up to finish topping off the coolant.  Then dug into why the grumble idle...

 

Plug 4 is not the same as plug 6 and vice versa...  swapped those around at the coil pack and et voila!  Smooth idle and normal revving!

 

Drove the car to the local lowes foods and had a beer with the neighbor (Dan).

Afterwards, car wouldn't start.  Battery is E36 M3.  I need a bigger capacity battery.  Trying to revive a 12 year old optima to put in right now.  I'm tired of the small battery dying after 3 days of not being used.

 

In other news, still has a slight vibration at 60 mph.  This is after getting a new driveshaft made and checking the torque on all the wheels.  This all started after changing the ruined diff buahings... maybe I need to go back to stock?  I'd like to find the issue.  Maybe an angle issue with the drivetrain?  Last I checked, it was .6 deg off from each other.  I would think that would be about perfect...

bbbbRASS
bbbbRASS New Reader
3/14/24 9:25 p.m.

Rob, when you get back from racing don't forget auto-x alignment and stickier 205 tires. 


❤️ - Dan

AxeHealey
AxeHealey GRM+ Memberand SuperDork
4/9/24 11:27 a.m.

Nice work and great driving this weekend! It sounds gooooood.

 

QuasiMofo (John Brown)
QuasiMofo (John Brown) GRM+ Memberand MegaDork
4/9/24 11:52 a.m.

SV reX
SV reX MegaDork
4/9/24 12:07 p.m.

I really love this car. 
 

Your RX7 parts donation was greatly appreciated.  They shall live on!

Now I need to re-read this thread SLOWLY! 😊

wvumtnbkr
wvumtnbkr GRM+ Memberand PowerDork
4/9/24 12:40 p.m.

Thanks for updating the thread yall!

I will post up my thoughts from the weekend when I get time.

 

For now, my punchlist of what I want to get done with the car:

1) get rid of vibration.  Holleee sheet it is annoying.  Might go to separate mounts for the diff and Trans to allow for some fine adjustability.  I'm gonna attempt to safely jack the rear of the up and crib it in place and have somebody run it up to 60mph to see if I can clearly see anything bent / vibrating.

2) add something to stop the wheelhop on drag launches.  It was much better this year, but not great 

3) get rid of the raspiness between 3 and 4k rpm.  BTW, 70 to 83 mph is 3 to 4k rpm...  long drive.

4) add MO POWAH baby.  I got a line on a nitrous kit in budget.

5) work on the alignment for autocross.  I also want to see how much work it is to remove the passenger and rear seats to lose some weight during the event.

Dusterbd13-michael
Dusterbd13-michael MegaDork
4/9/24 12:57 p.m.

I just picked up a Dynamax resonator to try to kill some of the Drone and raspiness on the Baja at the same RPMs. I'll let you know how it works. As far as wheel hop and vibration goes I found that a better power plant frame bracelet and rear end mount Mayday drastic difference and we'll hop on my Miata. Delran batwing bushings help immensely as well. So maybe two birds with one stone in separating your trans and rear differential mounts as well as some Delrin bushings to fight the wheel hop and the vibration at the same time

wvumtnbkr
wvumtnbkr GRM+ Memberand PowerDork
4/9/24 3:36 p.m.

Yep.  Already have a dynomax resonator.  Made zero difference.  Ugh.

I already installed the delrin bushings.

Let's see how the separation of church and state...  ermmm diff and Trans goes.

 

Edit.  I'm also going to install a bumpstop basically pressing on the diff nose.  It helped the 2nd gen immensely. 

bbbbRASS
bbbbRASS New Reader
4/10/24 8:45 a.m.

In reply to wvumtnbkr :

Bring girls in back seat to add cuteness and score more concours points! (Or some kind of theme with a neighbor participating and helping to add lightness)

QuasiMofo (John Brown)
QuasiMofo (John Brown) GRM+ Memberand MegaDork
4/10/24 12:06 p.m.
bbbbRASS said:

In reply to wvumtnbkr :

Bring girls in back seat to add cuteness and score more concours points! (Or some kind of theme with a neighbor participating and helping to add lightness)

He had Crawford and I, we was cute enough.

Dusterbd13-michael
Dusterbd13-michael MegaDork
4/10/24 1:04 p.m.
QuasiMofo (John Brown) said:
bbbbRASS said:

In reply to wvumtnbkr :

Bring girls in back seat to add cuteness and score more concours points! (Or some kind of theme with a neighbor participating and helping to add lightness)

He had Crawford and I, we was cute enough.

For hellen keller maybe. 

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