Supercharger vs. N/A build!

[Paintwerks]

Originally Posted by Cobrat24

Ok so we fired up the little 302 recently after the build.. Waiting on some additional parts for exhaust, new plug wires etc.. But here's is the progress!

Dyno was suppose to be earlier last week, however weather played havoc on parts and trailering the cobra to the dyno. I'll keep posting more as I go.

https://youtu.be/xCI87RUxaQo

Nice!

Definitely not a fan of that death metal music though!

[Cobrat24]

Update 2-17

Exhaust 90 degree bends came in. Tacked up today with a quick start.. HOLY MOLY the sound is so deep. Still waiting for clear weather to dyno as well.

[Cobrat24]

Ok so dyno'd the Shelby.. 402hp rear wheel. The exhaust is by far my favorite part of the build, 4inch from header to end. Sounds beastly! Here's a few more photos. I pick it up today!!


Will be posting results and video soon, promise no death metal this time.. Lol

[olddog]

Originally Posted by Cobrat24

Ok so dyno'd the Shelby.. 402hp rear wheel.

Back on post #68 the old engine was "243hp/253tq"

Assuming both runs on the same dyno, congratulations on the 159 hp or 65% increase.

402 at the wheels would be somewhere over 500 hp at the flywheel. That would be quite an accomplishment with only 302-306 cid NA. It may be a true reading it may be off a bit. Don't get too wrapped up in the number and focus on the improvement when using a like for like comparison.

This important question is "given your high altitude driving, how strong does it feel to you now?" Is this enough or do you want more? You could add 25-30% more with a mild 4-5 psi boost on a future project, now that you have a good foundation to build on.

Good job!

[Cobrat24]

Originally Posted by olddog

Back on post #68 the old engine was "243hp/253tq"

Assuming both runs on the same dyno, congratulations on the 159 hp or 65% increase.

402 at the wheels would be somewhere over 500 hp at the flywheel. That would be quite an accomplishment with only 302-306 cid NA. It may be a true reading it may be off a bit. Don't get too wrapped up in the number and focus on the improvement when using a like for like comparison.

This important question is "given your high altitude driving, how strong does it feel to you now?" Is this enough or do you want more? You could add 25-30% more with a mild 4-5 psi boost on a future project, now that you have a good foundation to build on.


Good job!

The hp feels like more of a 100hp gain. Even at the altitude I'm at it's a good gain. Keep in mind that 402 hp number is corrected sea level. So if it's a true 20% loss at my altitude, then what I'm feeling for rear wheel number feels about right for a little 302. The power is great, however like the rest of you, I can always use more. I think I'm missing it on the big end still. Don't get me wrong I had the biggest smile picking it up and driving it, and still do every time I get in the driver seat, but from 3rd gear on I still want more power. Which is why I think the next move will be adding the supercharger on a small boost setup to give me more on the top. As you stated the power plant is now established for it. My tuner nailed the current setup, to the point that a few of the guys I know said you would never know its not fuel injected even at maintence throttle. So I think going to a forced induction setup will be easy when I am ready to make that move.

1st and 2nd the car is squirrely with the new power plant, but totally manageable. Car is fun and if you ask me if I would do this again , I would for the budget I had.

[Cobrat24]

Here's a little video I put together of the whole project based off this thread.
Hope you guys enjoy it.

Sam's 1965 FF Shelby Cobra https://animoto.com/play/ePXg7NCijCiXsRxwl6QmMA

[Blacklemming]

Nice video,looks like you where having fun

[mdross1]

Nothing like driving your own creation, finishing each step is a milestone. The first time climbing into the car for a shakedown is a feeling you never forget these videos bring it all back. AC/DC sure adds to the excitement. Looking good.

[hinoonaz]

Looking really good. See you in July or August.

[Cobrat24]

Thanks guys, I really had a lot of fun with this. I've been lucky enough to drive it to work twice this week. Our weather has been in the high 60's low 70's and that's rare in Feburary.

[Bernica]

Now go find some parking structures to cruise through and see how many car alarms you can set off!

[Cobrat24]

Originally Posted by Bernica

Now go find some parking structures to cruise through and see how many car alarms you can set off!

Ha ha ha.. This setup is so loud I had to buy these for the wife and my 2 year old when we drive. I can't imagine how many alarms it will set off..

[Bernica]

You and your family will love tunnels too!