wallrockets 620 build

[WallRocket]

Hopefully he can save me the trouble. I need custom uca. Mainly due to the fact i need 7 to 8 degree front camber.

[budsaipan]

Nice work. Just wondering, what are you going to do if you need to remove the cab one of these days?

[WallRocket]

Nice work. Just wondering, what are you going to do if you need to remove the cab one of these days?

 

If I have to remove it. I better get out my cut off wheel. =) If I have to remove the cab..i am pretty sure I would be needing a cut off wheel anyway. So no big deal. 

[WallRocket]

Oh snap. My coil overs came in! Expect low..low things...

 

[WallRocket]

Nice work. Just wondering, what are you going to do if you need to remove the cab one of these days?

 

Wait tell you see the cage this thing is getting. You are going to flip nuts. 

[budsaipan]

Wait tell you see the cage this thing is getting. You are going to flip nuts. 

 

I'm flipping nuts already.  :thumbup:  :rofl:

[Eagle_Adam]

LOVE THE BUILD!! 

[WallRocket]

Ok, i just got done over hauling the sr. Putting it in today

[]2eDeYe]

Don't forget to take pics :D

[Eagle_Adam]

patiently waiting.... 

[WallRocket]

 

Took turbo off.

 

Got it off the stand

 

Primed the oil pump

 

[WallRocket]

Haha, i am teasing. :-) i am painting the engine bay as well.

[WallRocket]

I am having issues with the test fit. I cant get it back all the way. Updates soon.

 

 

See the alternator is removed due to the fact its hitting the (idler?). Hmmph

[WallRocket]

Ok, its all bolted in. I am going to do a write up, right on this post. I will keep updating it for you guys. 

Some reason, every write up i read was close, or mis informing.

Here it is all cleaned up for you guys.

Fitting the sr20det into engine bay of 79 datsun 620:

-rb20det rubber engine mounts (stock or aftermarket will work)

-re drill the factory front bolt whole (should be 12mm threaded hole) Drill to fit a 18mm size bolt head.

 

 

 

-The Trans tunnel will need to be cut. From Heater core back to shifter. 

 

 

 

 

-You will need to cut the lip on the firewall. Then hammer it flat. (cut so it can hammer flat, do not cut it out)

 

-Hammer out the trans tunnel

-Trans Cross member:

-2 peices of pipe with a bolt threw them, and a factory 4 speed trans mount. Drill 2 holes into the factory trans mount. Done. 

 

Alternator issues:
-I needed to trim the idler arms head. I just cut it in a angle of the alternator.

 

Alternator Housing 
-Cut the alternator hosing. Its all trim to fit type deal here.

 

Dont forget..

-Now, you will have to run a smaller alternator belt

 

 

 

 

 

Steering issues:

 

Tie rod center bar:

- IF YOU  MOUNTED THE WAY I MOUNTED MY MOUNTS YOU WILL NEED TO DO NOTHING TO THE TIE ROD BARS! 

 

As you can see, it is close, but no touch. 

 

 

Turbo Issues: 

Updating soon 

 

 External 38mm Mod: 

 

-I used a aftermarket wastegate 38mm external, 2in pipe, 38mm wg flange, 2 1/18 hole saw, and a OEM factory manfiold. 

 

-Cut a 2 1/8 hole into the manifold with a hole saw. (I used 2 of them)

-Place a 2in pipe into the 2 1/8 hole. You will notice it is MUCH bigger. You cut a larger hole so you get more exhaust gases, so you don't have any boost issues. 

-Cut down the end of the pipe multiple times to "pie", or "flare" it to fit into the 2 1/8 hole in the manifold. 

-Place into hole on manifold BRAZE it in. (weld you're flares)

 

 

 

 

 

Driveshaft:

-I used the FACTORY 4 Speed driveshaft. (If you mount the way I mounted)

-Cut off the dust cover, and install. 

 

 

 

 

 

Coolent Issues: 

Update soon

 

Wirring The sr20det into your 79 Datsun 620:

 

Sr20DET Lower harness.

1. Remove the wires that connect to the alternator on the sr20det engine. Here is some pictures that will help what they look like.

 

-2x White Solid White (big) goes to the starter (+) termanal. This wire charges the system.

-White red strip goes to ignition switched (+) This wire turns on the alternator.

-Black (Big) Goes from alternator (-) to chassis (-) anywhere fit. This wire grounds the system.

-Black white strip (big) Goes to ignition switch Start signal, use the pigtail, and run your own wire. This wire is the starter cranking wire.

 

Here is some pictures that should help i.d. the wires needed for the charging system.

 

 

 

Remove the rest of the harness as it is not required to have. DO keep it if, you plan to wire in speedo.

[GRpufnstuf]

Alternator...

 

There is a kit to mount a Subaru justy Alt on the SR engines for this kind of clearance problem.
I think it's made for swaps into roadsters but might help you or others. I'm pretty sure it got used on the SR swapped 620 I am obsessing over from Project Car Mag. Great write up on that build if you'd like to see one finished.

http://spriso.com/content/products/alternator-mount-kits/

I haven't used it but I've read many positive reviews

Great build!

[WallRocket]

Ok, I updated my turbo problems. Simple. Grind down the housing of the turbo slightly. ...THEN Delete the oem Wastegate. Then I got a 38mm Tial wastegate. 

 

 

 

 

 

Cut hole into oem manifold. I cut a 2 1/8th hole for flow reasons. Then Brazed it in. 

 

 

 

[WallRocket]

I will finish up the dump pipe and flange after I get the parts in the mail. =( Oh well. 

 

Updates soon! 

-I hope to have the turbo and coolant lines installed tomorrow. (I need to get done so I can paint)

[mikeanike99]

What size tires do you have on the rims?

[WallRocket]

225-60-15 (fronts rub, and had to trim some)

[WallRocket]

Hey i have some wonderful news everyone will love to hear. 

 

I used my factory 4 speed driveshaft. 

 

 

 

 

I did not have to modify my tie rods at all...

 

"made" my trans mount out of 2 peaces of pipe. 

[WallRocket]

Its almost time to paint the engine bay. =)

[WallRocket]

I will give you one hint to figure out what happens next. 

 

[mikeanike99]

Paint!

[WallRocket]

haha, Yep. Painting it right now. Just laid the clear. 

[WallRocket]

Took it all apart again. I ran my brake lines how I want them (routed a little cleaner) 

 

Pretty much refinishing everything before I put it all back in the engine bay. Fresh under coat for the frame, and steering shaft. Refinishing the brake booster, master cylinder, and clutch master cylinder. Then i will paint the valve cover to match the engine bay. 

 

 

Tape off. 

 

base 1

 

base 2

 

 

Clear!