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Re: I *thought* I wanted a turbo Corsa; until I drove one....eye popping smiley
Posted by: MattNall ()
Date: November 06, 2018 12:59PM

Larry, I've been in your car when Mike Had it.... Steve goodman built the engine IIRC

You'll puke if you ever drive one...

And of course... Steve G. knows how to make them perform with a YH!!

The rest of us "Mortals" resort to better heads... Bigger carbs... etc...

Steve, driving the mountains of Colorado, most likely has more "Turbo on Boost time" than anyone!

I'm with Nate and Kevin... Timing and carb size.... easy!

Here's my 2bbl Webered / 95 heads unknown cam, wrapped exhaust...







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: I *thought* I wanted a turbo Corsa; until I drove one....eye popping smiley
Posted by: Caraholic4life ()
Date: November 06, 2018 01:14PM

I have only owned one Turbo car. It was the last '65 Corsa convertible I owned and it had a 110 with a 95 cam. The same motor is now in my current '65 Monza coupe.
A turbo sounds great but I for one am not willing to deal with all it needs to run correctly and well. I even prefer the 95/110 engines over the 140's for a daily driver type Corvair. JMO

1962 95 F.C. Van
1965 Monza Coupe
Westminster, Maryland

MID ENG enthusiast &
prior Kelmark owner.

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Re: I *thought* I wanted a turbo Corsa; until I drove one....eye popping smiley
Posted by: kmart356 ()
Date: November 06, 2018 01:59PM

rnch Wrote:
-------------------------------------------------------
> Unless you have your "foot on the front bumper" & allow time for the turbo boost to build up, the turbo engine seems kinda-sorta sluggish around
> town, stop light to stop light? A 110/PG "feels" like a better "Real World" powertrain to me??
>
> Just me???

@rnch,

This timing curve demonstrates why it feels sluggish until it builds (RPM) boost. Assuming you have the factory distributor and factory boost retard can that functions properly, the initial onset of boost actually forces the timing to dip very low (below 15*) and it doesn't come back up until the mech advance kicks in at 4000rpm. Yeah that really is sluggish. One big improvement for timing is to get yourself one of the Clark's Advance/retard units, set your timing to 18* static and let the vacuum advance part of that unit help out while you are part throttle.

ps: make sure that YH is fully functional grinning smiley



Ken
'62 Spyder Coupe
Florida


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Re: I *thought* I wanted a turbo Corsa; until I drove one....eye popping smiley
Posted by: sweet66monza ()
Date: November 06, 2018 03:15PM

Mine earned the nickname "Turbo Turd" for a reason!

Cody Hurley
North Idaho (Post Falls)
66 Monza convertible 140/PG, loaded with factory options
66 Corsa factory turbo coupe, 3rd owner fully documented [corvaircenter.com]
65 Monza coupe daily driver 110/4
66 Monza 95/PG coupe project FOR SALE
66 500 coupe no drivetrain Parting Out!
Also 2 Ford f350 IDI diesels, six Jeep FC 170s, 66 CJ5A, 03 neon, 4 Rokon Trailbreakers, 3 vintage Honda 50cc minibikes, 4 Honda xr350s, and thousands of parts


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Re: I *thought* I wanted a turbo Corsa; until I drove one....eye popping smiley
Posted by: playerpage ()
Date: November 06, 2018 04:17PM

So that's a vote for 95 and 110 heads. What was so wrong with stock that requires replacement--and with GM being so cheap why didn't they just use other heads instead of unique ones?

Eric C. Player
Porterville, CA
- National Member, CORSA
- Member: Central Coast CORSA & South Coast CORSA
Former Member: Vintage CORSA Orange County. Member, ISA (Int. Screenwriter's Assn.), SAG Eligible, and Producer's Guild Aspirant


* Then: 1966 Corsa 180 Turbo, Red/1965 Monza 110 Purple/
1967 Monza 140 Red/1966 500 110 Black/1965 Monza 110 Yellow
* Now: 1966 Corsa 180 Turbo Project. Blue, Blue/Beige interior.



"Chevrolet's Corvair was a maverick machine, a rear-engined renegade born out of spite and genius." -- Sports Car Graphic, August 1969

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Re: I *thought* I wanted a turbo Corsa; until I drove one....eye popping smiley
Posted by: jjohnsonjo ()
Date: November 06, 2018 04:32PM

playerpage Wrote:
-------------------------------------------------------
> So that's a vote for 95 and 110 heads. What was so
> wrong with stock that requires replacement--and
> with GM being so cheap why didn't they just use
> other heads instead of unique ones?


A lot had with heat dumping and emissions. If you look at smog heads they are nearly identical. By keeping the compression very low, and the system simple it lowered the risk a warranty failures.


I'm running cut down 110 heads and octane cut pistons. Mine is very quick compared to when it was new.

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: I *thought* I wanted a turbo Corsa; until I drove one....eye popping smiley
Posted by: 66vairman ()
Date: November 06, 2018 05:03PM

playerpage Wrote:
-------------------------------------------------------
> So that's a vote for 95 and 110 heads. What was so
> wrong with stock that requires replacement--and
> with GM being so cheap why didn't they just use
> other heads instead of unique ones?

As others said a Turbo generates a LOT of heat - when it is on boost. The turbo heads (and valves, seats, etc) were designed to deal with the extra heat/power.

A shame the Corvair turbo is getting beat up here, but the fact is for a 60's engine the turbo Corvair was one of the most reliable turbo engines built at the time for a reasonable price. By today's standards it is not impressive, but when you read up on all the issues other companies (including Porsche) had in developing turbo engines the GM guys come off as doing a good job at the time.

One of the reasons I stayed with a 140HP naturally aspirated vs. the turbo was the expense to bring the turbo up to modern design standards. That said a well sorted modern upgrade of the turbo engine will run away from a naturally aspirated Corvair.

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Re: I *thought* I wanted a turbo Corsa; until I drove one....eye popping smiley
Posted by: jjohnsonjo ()
Date: November 06, 2018 05:39PM

I drove mine the day the OO brought home from the show room and many times after that before it became mine. These things were VAIRY impressive at the time. I was going on a hunting trip with my Dad and passed (TURBO'd ) three cars on a two lane road. I said hey Dad look at the speedo, he says holy shit that's the first time I ever went over 100.

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

Image and video hosting by TinyPic

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Re: I *thought* I wanted a turbo Corsa; until I drove one....eye popping smiley
Posted by: caroseiii ()
Date: November 08, 2018 07:25AM

Consider that the comparison to the 1962-3 Corvair buyer is against the 80 and 102hp engines and you realize it is much better, particularly on a divided two-lane highway when you want to pass.

Crawford

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Re: I *thought* I wanted a turbo Corsa; until I drove one....eye popping smiley
Posted by: flat_six ()
Date: November 11, 2018 07:17AM

I have two stock turbo Corsas and one stock 140 Corsa. I love driving all of them. Many people don’t understand that a Corvair turbo must be driven differently to extract the power. Open that throttle to get the air moving and shift higher. Whee!

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Re: I *thought* I wanted a turbo Corsa; until I drove one....eye popping smiley
Posted by: steve c goodman ()
Date: November 11, 2018 08:49AM

Often folks will stop at the shop or call and the conversation turns to whether they would like a turbo Corvair. I talk about the ability to pass easily under boost but I also remind them of having to 'drive' the car. I give the example of in the mountains you are on flat road but a hard corner is coming up and a climb afterward. You must anticipate the lag time which means more throttle (more speed) on the flat road and then lean on the suspension/tires in the corner so the speed and boost can be carried into the uphill climb.

In other words making the car handle PLUS the driver being able to drive into corners well!!

In some cases the interest in owning/driving HARD a turbo car is diminshed I think. Also in some cases they figure I am crazy for driving so hard in the mountains. gggg

I have stated for years that "boost is addictive". I do have to admit my spyder is not being used at the present time. After over 600,000 miles in all road conditions the body is beyond rust repair so it sits forlorn at the shop.

best wishes, Steve
Rear Engine Spec. Inc. Golden, Colo.

1962 spyder 3.0L turbo---1965 Crown V8
1967 monza 110/4---1968 monza 110/4
1971 amante gt 110/4
CORSA/RMC/PPCC

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Re: I *thought* I wanted a turbo Corsa; until I drove one....eye popping smiley
Posted by: Timothy Shortle ()
Date: November 11, 2018 09:56AM

600,000 miles??? How long have you owned that car?

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Re: I *thought* I wanted a turbo Corsa; until I drove one....eye popping smiley
Posted by: steve c goodman ()
Date: November 11, 2018 10:12AM

Timothy Shortle Wrote:
-------------------------------------------------------
> 600,000 miles??? How long have you owned that car?

Since 1965. I used it every day to and from the shop plus
convention drives to Chicago 74/Seattle 75-82/constant
drives/trips in Colo and Calif once/twice a year and the
mini-conventions in Phoenix and back to Kans a couple of
times each year to see my folks/hill climbs and autox
and ice races and just Sunday drives into the mountains
constantly to breakfast on Sundays and new years day
drives and at least one time a month to C/Springs to
PPCC meetings there and the list goes on.

Sadly it sat outside and
even though I washed it constantly in the winter months
the car was never properly dried off afterward due to
cold weather etc. Rust just overpowered the fenders
and corners of the car. I had the body fixed/repainted
in 1982 and kept it inside the garage for a year or so
but it was so much fun to drive I couldn't stand having
it sit so I just started using it all over again.

Running gear/suspension is still good and I sometimes
look locally here for an early body but never follow
through as hard as I should. Someday........gggg

best wishes, Steve
Rear Engine Spec. Inc. Golden, Colo.

1962 spyder 3.0L turbo---1965 Crown V8
1967 monza 110/4---1968 monza 110/4
1971 amante gt 110/4
CORSA/RMC/PPCC

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Re: I *thought* I wanted a turbo Corsa; until I drove one....eye popping smiley
Posted by: irfgt ()
Date: November 11, 2018 10:17AM

My bone stock 65 Corsa turbo runs fine and has plenty of power and very little turbo lag as long as I can find good premium fuel.

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Re: I *thought* I wanted a turbo Corsa; until I drove one....eye popping smiley
Posted by: Spectre ()
Date: November 11, 2018 10:46AM

I might go turbo in mine one day, My '65 originally had a turbo, but a PO installed a 140 with proper emblem and even had the exhaust cutout welded closed. It still has the turbo-only overheat buzzer.

David Clamp


1965 Corsa convertible - 140 4spd/3.55/AM-FM

2013 Mustang GT convertible - 5.0, 6spd auto, Procharger i-1

2003 Miata SE - 6spd manual (wife's toy)

"Victory is mine!" - SG

Oklahoma City, OK

Click for Oklahoma City, Oklahoma Forecast

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