Dz 372

[Ron in SoCal]

Originally Posted by Neil B

I've agonized over this. I really, really don't want to drill or weld on the car. I don't plan to launch the car or put sticky tires on it, but some type of additional structure under there sure would be nice. I've seen some cars start to crack where the rear quarter meets the roof at the corner of the side window, and I don't want this to happen on mine.

On my last 68 with 425hp the whole car would torque twist off the line. Check out Hotchkis or Global West. Pretty sure those are minimally invasive.

[Neil B]

I got everything tidied up last night. I'm really happy with how this turned out for a bolt-on system. I promise at least some cold start idle video later today.

[Neil B]

Here's a couple quick cell phone videos of the car warming up. It doesn't do the sound of the car justice. The Spin Tech's are definitely not for the faint of heart.

[Neil B]

Here is the cold start idle video.

https://youtu.be/z1JLqpJwVyE

[Flash68]

Ya big tease!! Not one stinkin little blip?

[Neil B]

Originally Posted by Flash68

Ya big tease!! Not one stinkin little blip?

LOL. I'll get some more footage soon, but my neighbors needed a break yesterday.

[OLDFLM]

Sounds great! What did you decide about the tailpipes?

I vote for the 45* cut even with the bottom of the quarter...

[Neil B]

Originally Posted by OLDFLM

Sounds great! What did you decide about the tailpipes?

I vote for the 45* cut even with the bottom of the quarter...

I'm still not sure. I wanted to get better clearances on the left side tailpipe, so I made a bracket to relocate it a bit. Moving the tailpipe affects the tip angles, so I want to lock down the tailpipe positioning before I cut anything. I park my daily driver under the Camaro on the lift so the tailpipes are front and center every time I come and go from the garage. This would be soooo much easier if I were willing to drill new holes in the car. LOL.

[Frankenstine]

DAUM RITE NEIL, that is pure music, sounds great MY .02 cents on the pipes, Def cut them Need more vids of this thing running out side running OR a drive by????
Thanks
Keith

[Neil B]

Still waiting for some dry roads, but I thought this was an interesting comparison:

Engine 1: DZ302, 11:1 compression, 170cc heads, 248/[email protected] solid flat tappet, 1 3/4 headers, 2.5" exhaust with h-pipe, Flowmaster 80 series cross-flow muffler.

https://youtu.be/G99ba3B7sWs

Engine 2: DZ372, 14:1 compression, 218cc heads, 268/[email protected] solid roller, 1 3/4 headers, 3" exhaust with x-pipe, SpinTech mufflers.

https://youtu.be/z1JLqpJwVyE

The new motor is definitely louder in real life, but to me they sound nearly the same even though every single part from carb to tailpipe has been changed.