Corvair DiagramCorvair Photo
Corvair Center
home forum corvairs calendar links Corvair Podcast
California Corvairs
Clarks Corvair
Clarks Corvair
“Performance
“CORSA"



Chevy Corvair License Plate
Chevy Corvair Chrome Wheel
Corvair Center Forum :  Corvair Center Phorum The fastest message board... ever.
Corvair Center 
Current Page: 17 of 18
Re: My 63 Turbo, daily driver, various project pictures
Posted by: 63turbo ()
Date: December 17, 2016 01:33PM

I got my flow test's done for the new twin 48mm t/b's and manifold done, super interesting!

At 10" of water test depression:

Modified Manifold: 297 cfm stock Crown/Weber Manifold: 225 cfm

Manifold with 48mm t/b: 295 cfm Stock with 45mm weber t/b: 221 cfm

Flow gain, new vs old: 33%

At 22.8" test depression:

48mm t/b+ modified manifold 436 cfm Stock Crown/weber and 45mm t/b: 367cfm

flow gain, new vs old: 19%

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

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]
engine less 62 Spyder
Canadian 64 Monza Parts car



Options: ReplyQuote
Re: My 63 Turbo, daily driver, various project pictures
Posted by: MattNall ()
Date: December 17, 2016 01:43PM

Now... will the Bottom end handle it?? gg





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

Options: ReplyQuote
Re: My 63 Turbo, daily driver, various project pictures
Posted by: 63turbo ()
Date: December 17, 2016 02:05PM

Haha! I cant get too greedy with peak boost obviously... I care more about how fast the turbo can get to 15psi than the peak boost. The modded manifold and t/b configuration ought to help a lot with getting to 15 psi quicker, as it should lower the turbo rpm to get to 1, then 2, then 3, psi and so on... kind of like compound interest... by that standard, the 33% flow gain at 10" is much
more impressive than the 19% gain at 22.8", as the turbo is pretty much maxed out there anyways. The only tests that really matter will be to see how much
boost I can really get in first with this new set-up, as it is hard to load the turbo enough in 1st gear.

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

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]
engine less 62 Spyder
Canadian 64 Monza Parts car



Options: ReplyQuote
Re: My 63 Turbo, daily driver, various project pictures
Posted by: 63turbo ()
Date: April 23, 2017 07:51PM

Wow- I didn't think it was going to be so long before updating this thread...
I'm still waiting for my custom cam and cylinders to show up, so in the meantime I'm working on some other tasks while I wait for the other parts. I had some stuff done to my heads, and one of the things was to open the carb pads to 1.5"- my part of the job was to do the blending and radiusing of the opening into the manifold- not quite finished with this one, I don't have the
right burr to reach the underside to my liking and there's still a bit of a mismatch on one side of the manifold. Ray Sedman was the one that told me about this trick, and had been wanting to do it for a long time now.

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

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]
engine less 62 Spyder
Canadian 64 Monza Parts car



Attachments:


Options: ReplyQuote
Re: My 63 Turbo, daily driver, various project pictures
Posted by: gnvair ()
Date: April 24, 2017 09:33AM

Kevin, Did you increase the size of the crossover to take advantage of the 1.5" carb pad bores?

Lee J

Options: ReplyQuote
Re: My 63 Turbo, daily driver, various project pictures
Posted by: 63turbo ()
Date: April 24, 2017 08:28PM

Lee- I haven't yet done anything about the crossover, but I do plan on having
a much larger one made, I'm toying with the idea of a stockish looking one
that is between 1.8" i.d. and 2" i.d.. I kind of have to make the pad/flange adapters before assembling the engine, but because I'm going to have to take my car somewhere to have that big manifold made, I'm going to have to run the stock one for awhile. It will be difficult to make and blend the adapters after the install (a lot of needless bending over that way). This one of those
things that I'd much rather be able to buy ready made than have to have made
custom!!

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

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]
engine less 62 Spyder
Canadian 64 Monza Parts car



Options: ReplyQuote
Re: My 63 Turbo, daily driver, various project pictures
Posted by: gnvair ()
Date: April 24, 2017 09:06PM

63turbo Wrote:
-------------------------------------------------------
> Lee- I haven't yet done anything about the
> crossover, but I do plan on having
> a much larger one made, I'm toying with the idea
> of a stockish looking one
> that is between 1.8" i.d. and 2" i.d.. I kind of
> have to make the pad/flange adapters before
> assembling the engine, but because I'm going to
> have to take my car somewhere to have that big
> manifold made, I'm going to have to run the stock
> one for awhile. It will be difficult to make and
> blend the adapters after the install (a lot of
> needless bending over that way). This one of
> those
> things that I'd much rather be able to buy ready
> made than have to have made
> custom!!


Do it out of 304 stainless. You can buy a U bend and cut it in half and get 2 90's out of it. You could also get a little bit trick and ad a collector so you can eliminate the dead head where the turbo discharge comes into the crossover. Cut and fit it. Tack weld the pieces together with a Mig welder and then take it and have it Tig welded.

Lee J

Options: ReplyQuote
Re: My 63 Turbo, daily driver, various project pictures
Posted by: gnvair ()
Date: April 24, 2017 09:08PM

How did you open up the carb pads? Any idea of how much cfm it picks up?
Are you staying stock displacement with your rebuild or going larger?

Lee J

Options: ReplyQuote
Re: My 63 Turbo, daily driver, various project pictures
Posted by: 63turbo ()
Date: April 24, 2017 09:18PM

Ooh Ooh Ooh!.... The siren call of STAINLESS!!!! Dude- you read my mind... That would look so friggen AWESOME!! Right on!!

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

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]
engine less 62 Spyder
Canadian 64 Monza Parts car



Options: ReplyQuote
Re: My 63 Turbo, daily driver, various project pictures
Posted by: 63turbo ()
Date: April 24, 2017 09:59PM

gnvair Wrote:
-------------------------------------------------------
> How did you open up the carb pads? Any idea of how
> much cfm it picks up?
> Are you staying stock displacement with your
> rebuild or going larger?

One of my long time machinist buddies opened up the carb pads as well as opened up the cylinder spigots to accommodate late cylinders so I could gain
a little more cylinder wall thickness, and get a bit more stable head gasket area, and he repaired some stripped out shroud bolt threads, as well as
removed all of the valves for inspection. I would have done this stuff myself
if it weren't for my day job, and was more than happy to farm that task out
to my friend. To open up the pads, he did it on his mill with a adjustable bore
head, initially he centered over the original hole, and opened it in .020-.030
passes, and then started changing the centering as needed to keep the minimum
wall on the pad roughly equal. His cuts all finished at the very bottom of the
pad, knowing that I was going to hand blend and radius the rest.
The area change between the stock hole and the 1.5" hole is roughly 30%. I don't know for sure if it translates into an actual 30% flow gain, but from
what I remember from talking with Ray about this, the 1.5" hole pretty much
matches the cross section area of the manifold- and since on my car it is dry
flow (15% more air than if it was wet), it probably does result in a 30%
increase.
This time around I'm keeping my .020" over-bore to keep costs down... my
next engine, when I hit the lottery, will be with 92mm pistons and 140 heads.
I think it is going to be quite a little screamer as is - I cant quite wrap my head around how big of an improvement the EFI made, even though I had nasty exhaust leaks, 2 exhaust lobes going bad, and 3 more intakes down on lift.

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

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]
engine less 62 Spyder
Canadian 64 Monza Parts car



Options: ReplyQuote
Re: My 63 Turbo, daily driver, various project pictures
Posted by: 63turbo ()
Date: May 06, 2017 10:14PM

gnvair Wrote:
-------------------------------------------------------
> How did you open up the carb pads? Any idea of how
> much cfm it picks up?

I had previously replied that opening the hole to 1.5" "probably" increases
the flow 30%. I talked to Ray Sedman about this question, and he said that
it DOES increase the flow 30%, verified on a flow bench. The slight bugger
in this modification is that if the carb pads are not properly radiused, the
end cylinder will not flow as much as the other 2, because of a slightly tighter turn to the port. Radius the carb pad properly, all cylinders flow
the same, don't do it right, cylinders #2 and #5 wont flow as much as the others on the same side.

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

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]
engine less 62 Spyder
Canadian 64 Monza Parts car



Options: ReplyQuote
Re: My 63 Turbo, daily driver, various project pictures
Posted by: 63turbo ()
Date: June 11, 2017 09:50PM

My project has been in slow motion mode while I've been waiting for parts... once those show up I'm going to be really getting going on it. In the mean time, I finished the radiusing and blending on one of the carb pads today.

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

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]
engine less 62 Spyder
Canadian 64 Monza Parts car



Attachments:


Options: ReplyQuote
Re: My 63 Turbo, daily driver, various project pictures
Posted by: jmaechtlen ()
Date: June 13, 2017 06:52PM

It's looking great so far- you do really nice work!

Options: ReplyQuote
Re: My 63 Turbo, daily driver, various project pictures
Posted by: 63turbo ()
Date: June 13, 2017 08:30PM

Thanks Jay!! I was going to go ahead and make that entrance all shiny and one finish... and then I realized it was all work and no more airflow gain so I stopped. The only gain in glam porting is the glam!! Anyways, my cam is done, my new billet fan is done (except for dynamic balancing) the throttle body's, manifold and turbocharger compressor housing are done.... It wont be too much longer before I get all these goodies and have to seriously get rolling on getting my engine back together and in the car... I have a long, hot summer ahead of me!!

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

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]
engine less 62 Spyder
Canadian 64 Monza Parts car



Options: ReplyQuote
Re: My 63 Turbo, daily driver, various project pictures
Posted by: 63turbo ()
Date: July 27, 2017 03:24PM

YES!!!! I got my cam today.... My engine starts going back together this weekend, because I've got a fan to test!!spinning smiley sticking its tongue out

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

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]
engine less 62 Spyder
Canadian 64 Monza Parts car



Attachments:

Options: ReplyQuote
Re: My 63 Turbo, daily driver, various project pictures
Posted by: 63turbo ()
Date: August 21, 2017 09:19PM

Update: Crankcase is back together, and the crank turns nice and free- and yes I did remember to put the cam in and check that it was lined up right.... 6 or seven timessmiling smiley. This past weekend the bell housing went back on, and then...
one of my all time favorite oil pans showed up, just in time for 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]
engine less 62 Spyder
Canadian 64 Monza Parts car



Attachments:

Options: ReplyQuote
Re: My 63 Turbo, daily driver, various project pictures
Posted by: MattNall ()
Date: August 21, 2017 09:58PM

You are having too much fun!





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

Options: ReplyQuote
Re: My 63 Turbo, daily driver, various project pictures
Posted by: 63turbo ()
Date: August 22, 2017 08:44PM

Matt- I'm going to have a lot more fun when I get all my parts... I'm still waiting for some stuff, and working on the things that I can do while I wait.
Shouldn't be too much longer!

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

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]
engine less 62 Spyder
Canadian 64 Monza Parts car



Options: ReplyQuote
Re: My 63 Turbo, daily driver, various project pictures
Posted by: The Stig ()
Date: August 22, 2017 08:57PM

Moore is a great pan. Nice!

Options: ReplyQuote
Re: My 63 Turbo, daily driver, various project pictures
Posted by: 63turbo ()
Date: August 26, 2017 07:39PM

The Stig Wrote:
-------------------------------------------------------
> Moore is a great pan. Nice!

Right on! thanks!... I got the pan mounted up today- one thing I was particularly happy with, the gasket surfaces were nice and flat, and did
not appear to have ever needed any truing up, and the oil drain threads were
in good shape. Also, I can verify that this pan really is lighter than the OTTO
pan and appears to have more ground clearance as well. The only slight bugger with it is that the bolt holes are kind of close to the sides, and have to use bolts with smaller heads... I ended up using grade 8 socket head cap screws. Turned out pretty darned slick! If these pans were available today new,
I sure as heck would have bought one instead of purchasing this off of ebay!

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

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]
engine less 62 Spyder
Canadian 64 Monza Parts car



Options: ReplyQuote
Current Page: 17 of 18


Sorry, only registered users may post in this forum.
This forum powered by Phorum.