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Who’s up for a 180hp build?
Posted by: Chilly Willy ()
Date: January 09, 2021 08:04PM

Looks like I have acquired a 180 basket case. Looking to build it as stock as possible. Looking forward to the build and teaching others. All help from forum members will be accepted.




The Corvair, Keeping Nader Notorious winking smiley


Will
Northern California



Edited 1 time(s). Last edit at 01/09/2021 08:05PM by Chilly Willy.

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Re: Who’s up for a 180hp build?
Posted by: Wagon Master ()
Date: January 09, 2021 08:28PM

You can stay Corvair and do much better than stock 180 heads.

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Re: Who’s up for a 180hp build?
Posted by: Chilly Willy ()
Date: January 09, 2021 08:45PM

True, the pics show a lot of corrosion. I’ll take pics and document when I pick it up. Going to try to keep it as simple as possible to show new corvair people what to expect.




The Corvair, Keeping Nader Notorious winking smiley


Will
Northern California



Edited 1 time(s). Last edit at 01/09/2021 08:46PM by Chilly Willy.

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Re: Who’s up for a 180hp build?
Posted by: JimBrandberg ()
Date: January 11, 2021 05:45AM

Worn valve guides in turbo heads can be an issue.
Is it true that the guides were installed and then final drilled concentric with the seats so if you install new guides without doing seats they may not line up?
I've got 2 pairs of turbo heads in the Machine Shop awaiting assessment.

Jim Brandberg
Isanti, MN
CorvairRepair.com



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Re: Who’s up for a 180hp build?
Posted by: Wagon Master ()
Date: January 11, 2021 06:11AM

JimBrandberg Wrote:
-------------------------------------------------------
> Is it true that the guides were installed and then final drilled concentric with the seats so if you install new guides without doing seats they may not line up?



Yes......Yes it is.

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Re: Who’s up for a 180hp build?
Posted by: vairmech ()
Date: January 11, 2021 06:17AM

JimBrandberg Wrote:
-------------------------------------------------------
> Worn valve guides in turbo heads can be an issue.
> Is it true that the guides were installed and then final drilled concentric with the seats so if you install new guides without doing seats they may not line up?
> I've got 2 pairs of turbo heads in the Machine Shop awaiting assessment.
>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>.

As was mentioned, yes. That is also why I will use bronze guide liners instead of just replacing guides.

Ken Hand
Handy Car Care
248 613 8586

Vairmech@aol.com

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Re: Who’s up for a 180hp build?
Posted by: dryenko ()
Date: January 12, 2021 12:54PM

If doing bronze liners, be careful to not split the thin cast iron guides.
If doing valve seats, it makes better sense to install new high quality Aluminum Bronze guides. then
Since the seat replacement will be concentric.
And will conduct heat into the head much better.
As GM found on the Turbo head exhaust valves.
NOT silicon bronze, which is commonly sold as a viable replacement.
They are not.

Bob C aka Dryenko
Dobson, NC 27017

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Re: Who’s up for a 180hp build?
Posted by: joelsplace ()
Date: January 12, 2021 01:32PM

If you replace the guide and then the seat to make the seat aligned to the valve how do you know that is correct? I'm getting ready to setup my shop for head work and I would think the correct way to do it would be to put the guide where it should be so that the valve angles and tips end up in the correct location so the rocker arm geometry is correct.

Joel
Northlake, TX
5 Ultravans, 114 Corvairs and counting...

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Re: Who’s up for a 180hp build?
Posted by: Chilly Willy ()
Date: January 12, 2021 07:03PM

Wagon Master Wrote:
-------------------------------------------------------
> You can stay Corvair and do much better than stock 180 heads.


What heads would be on The short list?




The Corvair, Keeping Nader Notorious winking smiley


Will
Northern California

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Re: Who’s up for a 180hp build?
Posted by: MattNall ()
Date: January 12, 2021 07:11PM

95 hp 64-9

MODERATOR
Sea Mountain, between Charleston Harbor and Coos Bay! SW Oregon Coast
Click HERE for My Website...Click HERE for My TechPages!
..............................110-PG.................................................Webered-Turbo

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Re: Who’s up for a 180hp build?
Posted by: jjohnsonjo ()
Date: January 12, 2021 07:11PM

65 and up 95 heads or 110 heads with octane cut pistons, which I am running since the late 70s and Dave Binnie was running as well in some of his builds

J.O.

65 Corsa Turbo Vert
79 Honda XL 500S
69 Honda CL 160 D
2010 BMW F 650 GS
2003 Bounder 36D
2013 KIA Optima SX turbo-AKA ZIPPY (wife,s car)
69 Newport Holiday Sailboat
Baja 150 dune buggy cart
Coleman HS 500 UTV
2016 KIA Sorento SXL Turbo

Bethlehem,Pa


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Re: Who’s up for a 180hp build?
Posted by: Chilly Willy ()
Date: January 12, 2021 07:26PM

Thanks guys, I’ll check the shed and see what I have ????




The Corvair, Keeping Nader Notorious winking smiley


Will
Northern California

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Re: Who’s up for a 180hp build?
Posted by: Wagon Master ()
Date: January 12, 2021 08:30PM

65-67 95 hp heads.
Scratch the 68-69 95 and 110 hp heads off your list.

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Re: Who’s up for a 180hp build?
Posted by: MattNall ()
Date: January 12, 2021 09:30PM

Nope!! All 95's were "closed chambered." We just discussed this 2-3 weeks ago...

MODERATOR
Sea Mountain, between Charleston Harbor and Coos Bay! SW Oregon Coast
Click HERE for My Website...Click HERE for My TechPages!
..............................110-PG.................................................Webered-Turbo

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Re: Who’s up for a 180hp build?
Posted by: Wagon Master ()
Date: January 13, 2021 04:03AM

SEARCH! All 68-69 95 and 110 hp heads were the open chamber smog design. Not desirable for a performance build.

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Re: Who’s up for a 180hp build?
Posted by: playerpage ()
Date: January 13, 2021 04:37AM

Oooo! I wonder who was right for myself, I'm running a 95 horsepower on the driver's side and a turbo on the passenger side. Any danger of one side being closed valved and the other being open?

____________________________________________

Eric C. Player, Fargo, ND, USA
MEMBER: CORSA National, Central Coast CORSA, South Coast CORSA, Vintage CORSA, Sfba CORSA, and the San Joaquin Valley Corvair Club. Those may change. winking smiley
THEN:
1965 Monza 110, Canary Yellow
1965 Corsa 180 Turbo, Red
1966 Monza 110, Purple
1967 Monza 140, Red
1966 500 110, Black; nicknamed "Shadow"
1965 Monza 110, Camaro Yellow; nicknamed "Silver"
NOW:
1966 Corsa 180 Turbo, Blue; nicknamed "Bluvair"

"He cautioned me not to take notes. It would not have helped if I had, as he would start a paragraph with, 'It is therefore obvious. . .'
and go on from there to matters which may have been obvious to him and God but to no one else."
-- Robert A. Heinlein, character of Daniel B. Davis, 'The Door Into Summer.'

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Re: Who’s up for a 180hp build?
Posted by: Wagon Master ()
Date: January 13, 2021 06:25AM

Depends on what flavor/head# 95 hp head was used. Standard 95 head would be quite different. Smog 95 head would be quite similar.

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Re: Who’s up for a 180hp build?
Posted by: Chilly Willy ()
Date: January 13, 2021 07:14PM

The plan is already changing. 140 heads with the 180 manifold??? Tried a search nothing came up.




The Corvair, Keeping Nader Notorious winking smiley


Will
Northern California

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Re: Who’s up for a 180hp build?
Posted by: JimBrandberg ()
Date: January 14, 2021 05:05AM

Yes the 68-69 Smog head is open chamber and the same head for 95 and 110. 95 gets flat pistons and 110 gets domed pistons.
Horrible head for their intended purpose but I could see using one on the left side of a turbo engine if it CCs the same. Some differences from open 65-66 turbo head like guides but I've done worse things in a pinch.
Generally when people speak of using 95 heads on a turbo it's the 65-67 variety with a quench.
I believe when we were discussing 95 heads a few weeks ago it came down to some typos in the Junkyard Primer book.

Jim Brandberg
Isanti, MN
CorvairRepair.com



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Re: Who’s up for a 180hp build?
Posted by: JimBrandberg ()
Date: January 14, 2021 05:09AM

I have a turbo engine here that someone else built using 140 heads with the compression reduced and the Secondary ports blocked off. I've never run it and don't know how he went about reducing the compression. If he just used thicker gaskets it sort of negates the squish effect.

Jim Brandberg
Isanti, MN
CorvairRepair.com



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