Gatorfly Wrote:
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> I’ve got a few extra belts laying around if you need them for testing purposes Kevin? However, it sounds as if you’ve already accomplished what you set out to do! I guess I’ll just have to order one of these along with a Nash fan for the new 65 Corsa 140
> Come on over for a visit when the inter island is running. It’s been a while and I’m sure we can load you up with some extra parts


Hopefully there will be some "stability" to the inter island ferry soon, when the weather is warmer!! Im of eager to get back over there!

------------------------------------

Kevin Nash
Friday Harbor Washington
63 Spyder, Daily driver, EFI read about my project here: [corvaircenter.com]
first test start on EFI here:[www.youtube.com]
first official EFI boost test here:[www.youtube.com]
My new fan! [corvaircenter.com]
engine less 62 Spyder
Canadian 64 Monza Parts car
Test Start#2 [www.youtube.com]

Here's the evidence of no belt strikes on the bell mouth notches! Look at how close the belt is to the notches/cutouts. There would have been white spots on the edges of the cutouts by now if the belt wasnt under really good control.

------------------------------------

Kevin Nash
Friday Harbor Washington
63 Spyder, Daily driver, EFI read about my project here: [corvaircenter.com]
first test start on EFI here:[www.youtube.com]
first official EFI boost test here:[www.youtube.com]
My new fan! [corvaircenter.com]
engine less 62 Spyder
Canadian 64 Monza Parts car
Test Start#2 [www.youtube.com]

And now I have to buy something else from Mr. Nash.

Eric C. Player
Fargo, North Dakota
MEMBER: CORSA National, Central Coast CORSA, South Coast CORSA, Vintage CORSA, Sfba CORSA, and Great Plains Corvair Club.
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.'

Kevin,
Please add me to the list of wishful buyers, when you're ready. Since I'm planning to use a desert air system with your fan, and the original turkey roaster was lost in moves many years ago, I opted to use a t.r. from 1960. It has fewer holes for air loss as well as having the three studs which mounted the '60 air cleaner support bracket. Now they will hold the lower part of the d.a.s., but the '60 t.r. does not have a belt guide by the #3 cylinder as later versions do. With your new guide, do you think belt retention will require I add that right sided guide by the fan pulley? After watching this video, think I answered my own question - [www.youtube.com]

Scott
Danville, In.
'65 Corsa coupe basket case
'66 Monza coupe

Well, maybe not. Looking at your photo, you're not running that guide with your bell mouth, are you?

Scott
Danville, In.
'65 Corsa coupe basket case
'66 Monza coupe

scottymac- That video you posted the link to is a really good one to watch and gives some insight as to what makes my roller guide so slick, especially the part right before the belt squirms out from under the idler guide and afterwards! notice how freaking much chaos happens to the belt before the squirm, and how much it calms down after. Why this happens is because the belt tension is being controlled by DRAG, although it is severely tough on the belt doing it like that. It also shows how ineffective the stock guides actually can be if they are not adjusted close enough. A major part of the problem with the stock guides is that by being at the ends of the span, a whole bunch of chaos is allowed before they can do anything. By controlling the deflection in the middle of the span, it nips it in the bud and is effectively shortening the belt by taking all the movement out on that one span. The rollers also affect tension by drag. Anytime the belt is approaching the rollers and is slightly off line, just by the increased rolling resistance of the small rollers, it causes some drag and immediately tightens the belt on the idler side (and trys to straighten it out!!) and causes it to slacken somewhat on the crank pulley side. Both of these separate effects are exactly what we want. Get rid of the chaos in that one span, calm it down every where else!! no guide really needed at the entrance to the fan pulley. If this roller system doesnt take care of all of the problem, its pretty clear that one more set near the middle of the span between the fan pulley and alternator would do it. I think for most folks that are hot dogging it and wanting to have some fun in the upper rpm ranges, the one set between the idler and crank is going to be all thats necessary. The uber ultra trick set-up would be to use a spring loaded idler with this with some sort of bump stop on it to limit the forward throw. This way the tension could be kept constant from cold engine to hot.
All you guys are are on my list for the next batch. A few bugs to be resolved are the roller positions arent quite optimized yet, the pockets for the shoulder bolts have the wrong depth and allow too much vertical slop. Also, it turns out that the right roller contacts the distributor (no biggy on my car because it doesnt have one). This is also a relatively easy fix by staggering the rollers.
All of the observed bugs will be ironed out relatively quick.

------------------------------------

Kevin Nash
Friday Harbor Washington
63 Spyder, Daily driver, EFI read about my project here: [corvaircenter.com]
first test start on EFI here:[www.youtube.com]
first official EFI boost test here:[www.youtube.com]
My new fan! [corvaircenter.com]
engine less 62 Spyder
Canadian 64 Monza Parts car
Test Start#2 [www.youtube.com]

Put me on the list Kevin, even though it’s been at least 27 years since I threw a belt. Maybe I should drive the car more.

Rocco
65 EFI Turbo Corsa
YS113
Barboursville, Va

I'm interested depending on cost of course..

"A sign of great intelligence is being able to say 'I don't know'"
1966 Corsa Turbo Coupe
Now Located in Oswego,NY

zarfnober Wrote:
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> Put me on the list Kevin, even though it’s been at least 27 years since I threw a belt. Maybe I should drive the car more.

Right on Rocco! I know what you mean! when I had my 140. I thought those guides were super important, but then when I got my early turbo and it didn't have those, I was sorta going uh uh uh (thinking to myself is this okay???) and the mechanic said none of the earlys had those and it wasnt a big deal. Then I got used to it. So for the last 25 years or so, my car never had them, and although my experience with belt tossing is almost like yours, I became aware of how bad the belt control really was without those guides and came to appreciate the improvement... Especially when out having a little fun!!

------------------------------------

Kevin Nash
Friday Harbor Washington
63 Spyder, Daily driver, EFI read about my project here: [corvaircenter.com]
first test start on EFI here:[www.youtube.com]
first official EFI boost test here:[www.youtube.com]
My new fan! [corvaircenter.com]
engine less 62 Spyder
Canadian 64 Monza Parts car
Test Start#2 [www.youtube.com]

Please add me to the list.

Mark E.
Memphis
66 Corsa

I might as well add another goody to my car Go ahead and put me on the list!

Drew Dunn

Hiya Kevin! I'm in for a set rockin' rollers. But remember I got that massively ginormous spring loaded idler arm on steroids from Ken Hand. I'll wait for that roller version.

Thanks!

Bali

Update: I have a total of 60 miles on the roller guides without any bugs, and finally got my nerve up for the scarey test. I tightened the belt as hard as much as I could muster by pulling on the idler... when I've done this in the past, It resulted in a horrible belt shake between the idler and crank pulley or simply toss the belt at high rpms. This time, with the roller guides on, absolutely nothing happened, the belt ran string straight like I've never seen before. Don't know what the peak rpm was but it had to have been in excess of 5000 rpm. The only other thing to note was that I was also testing a new bell and the freaking pressure went to 17.82", also something that I've not seen before. I absolutely hate free revving an engine like that, especially dead cold so wont be doing many more tests like that. All I know for sure is that little bugger seems to be an incredible leap forward in belt control for our mule drive and emails are going out to my beta testers!!

------------------------------------

Kevin Nash
Friday Harbor Washington
63 Spyder, Daily driver, EFI read about my project here: [corvaircenter.com]
first test start on EFI here:[www.youtube.com]
first official EFI boost test here:[www.youtube.com]
My new fan! [corvaircenter.com]
engine less 62 Spyder
Canadian 64 Monza Parts car
Test Start#2 [www.youtube.com]

63turbo, Sorry if I missed it earlier but do your rollers have ball bearings in them? I ask because at times, the roller RPM must be very high I would expect bushings would eventually squeel or buzz at at high RPM. ?

Dan Brizendine, Circle City Corvairs
'64 8 door Greenbrier, +.060, stroked 1/4", 188 ci, 140 PG. "In beautiful Wanamaker Indiana...with one stop light and 5 pizza shops"

Brizo Wrote:
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> 63turbo, Sorry if I missed it earlier but do your rollers have ball bearings in them? I ask because at times, the roller RPM must be very high I would expect bushings would eventually squeel or buzz at at high RPM. ?

Brizo- The rollers have sealed roller bearings at both ends, and have a speed rating of 40000(!) rpm, and because of the small diameter of the rollers, is expected to be hit when the engine is at 6000 rpm. Bushings most definitely wont cut that!! There are other bearings I could have got that have a higher speed rating but they can get pretty pricey, and because those speed ratings have a certain load in mind can go to much higher rpms if the load is lower, I wasnt sure if I needed those at this time. I've set the rollers to have a tiny amount of clearance between the belt so they are not in continuous contact with the belt- when the belt behaves no load is on the rollers, and when the belt tries to get happy it gets a little love tap back into line, much like muting a guitar string. They never get loaded very hard when correcting the belt. I dont know what the actual life expectancy of the bearings is, but that is part of what the longer term testing is all about. Lookin good so far!

------------------------------------

Kevin Nash
Friday Harbor Washington
63 Spyder, Daily driver, EFI read about my project here: [corvaircenter.com]
first test start on EFI here:[www.youtube.com]
first official EFI boost test here:[www.youtube.com]
My new fan! [corvaircenter.com]
engine less 62 Spyder
Canadian 64 Monza Parts car
Test Start#2 [www.youtube.com]

Well, I think I have 100 miles on with the rollers in place and just tonight went out as far as 6250 rpm, still no belt strike marks on the bell. This is with a fairly snug belt and would be in the range of tensions that have caused some bad belt shaking that would have wacked the bell. Still looking really good!!

------------------------------------

Kevin Nash
Friday Harbor Washington
63 Spyder, Daily driver, EFI read about my project here: [corvaircenter.com]
first test start on EFI here:[www.youtube.com]
first official EFI boost test here:[www.youtube.com]
My new fan! [corvaircenter.com]
engine less 62 Spyder
Canadian 64 Monza Parts car
Test Start#2 [www.youtube.com]

Have you decided on a price?

Joel
Northlake, TX
5 Ultravans, 145 Corvairs and counting...

joelsplace Wrote:
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> Have you decided on a price?


At this time it is expected that these will be between 200.00 to 250.00 + shipping. I will be able to refine the price when Im sure Im done with refinements
and have a better handle on larger quantity pricing.

------------------------------------

Kevin Nash
Friday Harbor Washington
63 Spyder, Daily driver, EFI read about my project here: [corvaircenter.com]
first test start on EFI here:[www.youtube.com]
first official EFI boost test here:[www.youtube.com]
My new fan! [corvaircenter.com]
engine less 62 Spyder
Canadian 64 Monza Parts car
Test Start#2 [www.youtube.com]

Hi Kevin.
Have you thought about adapting this concept / parts to a Reverse Rotation engine ?
Like under the alternator mount ?
In particular for a High RPM Dragster RR engine with a E flow Turbo.
Bob C

Bob C aka Dryenko
Dobson, NC 27017

dryenko Wrote:
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> Hi Kevin.
> Have you thought about adapting this concept / parts to a Reverse Rotation engine ?
> Like under the alternator mount ?
> In particular for a High RPM Dragster RR engine with a E flow Turbo.
> Bob C


I have been pondering how to do the roller guide set-up on the alternator side between the alternator and fan pulley, but I had not thought about doing one for a reverse rotation application... damn thats cool! It would be super simple if the normal idler stand mounted on that side because then most of the work is just to make a mirrored bracket pattern, and perhaps alter the hole positions. It gets really difficult doing a one-off that is for something that doesnt use a normal alternator or conventional mounting arrangement, because then I cant check anything. Probably for an ultra custom application it might be more doable
to sell the rollers, bearings and tight tolerance shoulder bolts and let the buyer figure out the mounting.

------------------------------------

Kevin Nash
Friday Harbor Washington
63 Spyder, Daily driver, EFI read about my project here: [corvaircenter.com]
first test start on EFI here:[www.youtube.com]
first official EFI boost test here:[www.youtube.com]
My new fan! [corvaircenter.com]
engine less 62 Spyder
Canadian 64 Monza Parts car
Test Start#2 [www.youtube.com]