OST-047: Skippy Replicate

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oldeskewltoy
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OST-047: Skippy Replicate

Postby oldeskewltoy » Tue Apr 03, 2018 10:02 am

Remember Skippy?? http://www.club4ag.com/forums/viewtopic.php?f=16&t=18040&p=128321

A quick refresher, I bought/built Skippy(FX16) to be a commuter. When I bought her the engine was junk, and I did a rebuild with the express purpose to maximize the engines torque curve in an effort to maximize fuel economy by having more power in the mid range to allow a shallower throttle angle while on the highway.......

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Well, I ended up not needing the commuter and I put her up for sale. It took a while ($3500 FX16 typically does), but I sold her to 2 people..... One person bought her for her engine.... the other bought her because her chassis was in very good shape. Well, the chassis purchaser doesn't want to give up Skippy's engine! Meanwhile the engine purchaser wants his engine!

The engine purchaser will be using the original Skippy 4AGE for rally purposes....

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Sooo... I've been commissioned to replicate Skippy's head..... so the chassis purchaser can also enjoy a FAT torque curve ;)


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more to come..... :D
OST Cyl head porting, - viewtopic.php?f=22&t=300

Building a great engine takes knowing the end... before you begin :ugeek:

Enjoy Life... its the only one you get!

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jinx
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Re: OST-047: Skippy Replicate

Postby jinx » Tue Apr 03, 2018 9:22 pm

cool to see a clean street FX16. Sad to see this one get 'unplugged'

so this is a 10.7:1 TVIS bigport .....with TVIS working ?
Torque looks beefy(for a na 1.6) from down low. Would be interesting to see a stock torque curve overlay/comparison
I'd imagine the FX drove strong?

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oldeskewltoy
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Joined: Wed Jan 09, 2013 4:44 pm
Location: Portland, Oregon

Re: OST-047: Skippy Replicate

Postby oldeskewltoy » Wed Apr 04, 2018 8:02 am

jinx wrote:cool to see a clean street FX16. Sad to see this one get 'unplugged'

so this is a 10.7:1 TVIS bigport .....with TVIS working ?
Torque looks beefy(for a na 1.6) from down low. Would be interesting to see a stock torque curve overlay/comparison
I'd imagine the FX drove strong?



close enough... (actual is 10.77:1)

how about a side by side????

Dyno on left is admittedly just from an advertisement.... but it is published data. With that said....... ( I hear some of you rolling your eyes.... :lol: )

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Whether or not you like the above comparison.... The FX drove very strong.... tough to get it to hook up in 1st gear :D




This head is very dirty... but it is still uncut, and the cast(core) shift isn't too bad

Image

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Intake valves aren't too "skanky".... the exhaust on the other hand.... that can't help flow :lol:

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more to come...... :D
OST Cyl head porting, - viewtopic.php?f=22&t=300

Building a great engine takes knowing the end... before you begin :ugeek:

Enjoy Life... its the only one you get!

jinx
Club4AG Expert
Posts: 215
Joined: Fri Jan 11, 2013 10:20 pm

Re: OST-047: Skippy Replicate

Postby jinx » Thu Apr 05, 2018 2:29 am

not much to c, engine vs chasis dyno
looks like porting + compression certainly increased output straight accross.... verified by how it drove

FX in photo above looks tough

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User avatar
oldeskewltoy
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Posts: 1704
Joined: Wed Jan 09, 2013 4:44 pm
Location: Portland, Oregon

Re: OST-047: Skippy Replicate

Postby oldeskewltoy » Wed Apr 18, 2018 8:00 am

working cylinder 4 intakes first.... followed by #3

Image

Image


more to come...... :D
OST Cyl head porting, - viewtopic.php?f=22&t=300

Building a great engine takes knowing the end... before you begin :ugeek:

Enjoy Life... its the only one you get!

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