2.5 L Polo 911 Based Engine Dyno

[Jabate]

Recently finished dyno run on a 4 cyl 911 based Polo engine.
Cyl heads are 964 w/993 valves prepared by Xtreme cyl head.
Bore:102mm. Stroke 76.4mm

.92 hp/Liter

Jeff
[image]http://forums.pelicanparts.com/uploads26/image1661466944.jpg[/img]



‘

[cmpski]

WOW. From one POLO guy to another. Those are awesome numbers.

[Jabate]

DC43/112 Cams ground by John Dougherty
are installed

[ahh911]

"Recently finished dyno run on a 4 cyl 911 based Polo engine.
Cyl heads are 964 w/993 valves prepared by Xtreme cyl head.
Bore:102mm. Stroke 76.4mm

.92 hp/Liter"


Polo engine, as in vw polo? 4cyl with964 heads?
I feel dizzy, do you have any pictures?

Thanks,
Phil

[stownsen914]

Polo is a 4 cyl engine roughly based on the 911, and uses 911 parts including the heads. Pretty cool motors.

[Jabate]

[ADV-Performance]

May I ask what exhaust system you have installed.
Thank you
Ralph

[Jabate]

Rarely L8 tuned 1 5/8” stainless headers and Rarely L8 stainless dual in/out muffler
Built by Rarely L8 Motorsports/M&K Muffler

[cmpski]

That engine is a beauty Jeff.

[ADV-Performance]

Jeff, if you don't mind I have another question, what size valve did Bill install on your heads.

Thank you
Ralph

[Jabate]

50 mm intake w/8mm stems; 42.5mm ex. W/8mm stems

[jac1976]

Originally Posted by ahh911

"Recently finished dyno run on a 4 cyl 911 based Polo engine.
Cyl heads are 964 w/993 valves prepared by Xtreme cyl head.
Bore:102mm. Stroke 76.4mm

.92 hp/Liter"


Polo engine, as in vw polo? 4cyl with964 heads?
I feel dizzy, do you have any pictures?

Thanks,
Phil

The confusion is understandable. The motors are from Dean Polopulos hence “Polo.” Do yourself a favor and Google “Porsche Polo” and check out the videos…and turn up the volume. The sound is pure nirvana.

[ahh911]

Wow, looked it up, it's a pretty involved beast, could probably spend weeks reading and still only scratch the surface. Very cool indeed.

Phil

[cmpski]

Go to www.polomotor.com
The Bahama Yellow 912 is mine. It makes maybe 190 hp. It's quick. Jeff's 912 will be a rocket.

[ahh911]

Message I get, hopefully they paid their bills.

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[Jabate]

Some pictures of the case, w/cyls/heads minus chain boxes.
Pictures of split case showing 5 bearing crank
Pictures of headers before heater boxes added

[cmpski]

I talked to Dean. The site should be back up in a week or so.

[Jabate]

Delivered for instillation

[cmpski]

https://www.polomotor.com/