Not Another LS! Dyno Testing a Pontiac Ram Air V Tunnel-Port V8 Engine

Pontiac’s Ram Air V engine was never offered to the public, so we decided to build one of our own. Follow along as we document, detail, and dyno one of John DeLorean’s most impressive efforts, and one that could very well have turned the tide of the muscle car wars.

Read the full Pontiac Ram Air V Engine build story here:

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#pontiac #ramair #dynotested

[larryok]

Great to see something new and different on these old engines. 675 hp is no slouch for sure! 🤟

[andyharman]

I hate when people swap Chevy engines into Pontiacs, so thanks for keeping it pure.
I love anything related to Ram Air V engines.

[joequillun]

Cool video. Thanks to DCI, for your continued effort to the indians. Hope you do a test drive video with the 70 Goat. 👍

[thejourney]

Finally! I've been waiting for someone to test these heads and intake on an engine dyno for 10+ years. Makes great power and i bet could get more power with continued tweaking. Great video!!! 👍

[edsmachine]

Nice build for sure.
The DCI heads are awesome.
Thanks for sharing. 👍🇺🇸👍

[deanstevenson]

There is an index test quotient call Aspirations Index. That is Ai = (Cubic inch displacement x peak power rpm) divided by indicated corrected dyno hp. Ai= Cid* Peak power rpm power over Peak power hp. Anytime you drop the resultant number from the first run, you are making more power with less peak power rpm. Never chase just more hp. Chase more hp by using less rpm. Phil Irving and Larry Perkins, two of the greatest GM engine tuners used this method. PS..B & R Racing brought me here. DCi rocks. So does Hemmings for platforming this. You stated with an Ai of (461*6700)/649.41 or 4756, then it ended up with (461*6800)/675.1 or just 4643, the lower the Ai number, the better. Well done.

[etenterprises]

That thing is serious! Closing in on 700HP. Such a cool engine to see come to life. Really glad this one happened.

[whodatnunyabiz]

This is impressive! Don does great work and now I am rethinking that maybe a RAV head on my 69 428 would be great in my 65 GTO. Car was (and still is) basically a drag car so seeing this kind of numbers makes me think it would be a great Drag N Drive setup for the street. Thanks for sharing and what a beautiful 70 GTO! I also have a 68 400HO 4 speed car that I pulled out of a barn in south Texas after a 46 year nap.

[georgela]

How Kool someone is making an even better set of Stage V heads. Why not.

[ZeGermanHam]

Super cool! There needs to be much more Pontiac content made. This was great to watch.

[E.T.GARAGE]

Nice to see something like that on the Dyno. Thanks For Sharing 👍😎👍

[hodad]

Great video. Nice to see the boys at Westech. When you’re done let Musto drive it!

[charlesdalton]

Sweet baby carrots that's Baldwin Locomotive torque! It seems strange almost to hear a 70 big block revving that high. Don't get me wrong - it sounds good - just unusual. Thanks for taking us along, looking forward to the rest of the story ~ Chuck

[chapel]

I've always wanted to see this engine on a dyno. I knew it was a torque monster, but damn.

[allenl]

A Pontiac GTO could have been a NASCAR threat in the late 1960s with a Ram Air V.

[powderriver]

My family used to be all Pontiacs, for the 1957 model year my father ordered a Star Chief, with a heavy front end and something else, what he received turned out to be a car with one of 500 engines that happened to be one of those special productions for what we believe was early NASCAR. That car would do 13 second 100mph quarter mile times. That was plenty fast in 57 for a heavy old car, I believe the engine was a variant of the 347, as my father had met some Pontiac collector from Canada that knew a lot about those special engines. Remember Zora Duntov and Mickey Thompson were around Pontiac in those days there were so many legends associated with Pontiac that made so many experimental engines and engineering firsts.

[arthurs]

I'm not an American muscle guy but between that specific output and that compression ratio, this wasn't just a matter of throwing cubes at a problem but actually engineering! This is awesome

[oliverd]

love that you are doing a Pontiac motor in your GTO so many chevy or ls swaps I hate that,

[mikeh.]

I'm 60 and I'm a Pontiac guy. I've seen pictures of the Ram Air V heads, but never seen any in person. Those look like Ford tunnel port heads.

[maximus]

Everyone talks about HP but torque is the big deal and those numbers are impressive