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Search: Posts Made By: Rotonda
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Forum: C3 Tech/Performance
08-04-2019, 06:44 AM
Replies: 6
Views: 751
Posted By Rotonda

https://www.amazon.com/Rectorseal-81880-1-Pound-Du...

https://www.amazon.com/Rectorseal-81880-1-Pound-Duct-Compound/dp/B008A3UG94/ref=sr_1_3?gclid=Cj0KCQjwhJrqBRDZARIsALhp1WSnqzQOpvJELUQ1ojhNM8A3zHEn1Niem4R-zrYNApw7WTETW7dtqbkaAidpEALw_wcB&hvadid=1537140...
Forum: C3 Tech/Performance
07-06-2019, 11:26 AM
Replies: 32
Views: 8,893
Posted By Rotonda

See the following: ...

See the following:
https://www.digitalcorvettes.com/forums/showthread.php?t=248905
Forum: C3 Tech/Performance
07-02-2019, 07:48 AM
Replies: 32
Views: 8,893
Posted By Rotonda

:iagree: The 82 has a modern orifice AC...

:iagree:

The 82 has a modern orifice AC system in it and will cool as well as a Vintage Air unit, if properly serviced and maintained. Potential upgrades to the 82 system are: 1) Replacement of...
Forum: C3 Tech/Performance
06-28-2019, 12:22 PM
Replies: 27
Views: 11,593
Posted By Rotonda

GM originally designed TPI for their 305 engine. ...

GM originally designed TPI for their 305 engine. When upsized to the 15% larger 350 engine, airflow became very marginal, hence the reputation as a torque monster low rpm engine. To make it perform...
Forum: C3 Tech/Performance
06-21-2019, 07:36 AM
Replies: 28
Views: 4,227
Posted By Rotonda

https://www.corvetteforum.com/forums/c3-tech-perfo...

https://www.corvetteforum.com/forums/c3-tech-performance/3826602-how-i-converted-my-adjustable-strut-rods-with-heim-ends.html

Suggest that you look at the above post. It contains everything you...
Forum: C3 Tech/Performance
06-13-2019, 07:16 AM
Replies: 9
Views: 1,494
Posted By Rotonda

An 82 tank will only fit into the 78 - 82 bubble...

An 82 tank will only fit into the 78 - 82 bubble back C3.

TO O.P. What kind of problems are you having fitting this tank into your 75? Providing a description (or pictures!) of the problem will...
Forum: C3 General
06-10-2019, 08:04 AM
Replies: 4
Views: 2,024
Posted By Rotonda

Before you go further, I would like to suggest...

Before you go further, I would like to suggest three things ( I'm assuming that these wheels have the correct lug pattern):
1) What is the back space on these wheels? Stock is 4 inches. Anything...
Forum: C3 Tech/Performance
06-10-2019, 07:40 AM
Replies: 8
Views: 1,056
Posted By Rotonda

I have a 77. began with a Lokar braided...

I have a 77. began with a Lokar braided stainless system. The braided stainless soon began to deteriorate, with prickly points of broken stainless wire all over it. I bought a AN O3 hose intended...
Forum: C3 General
06-04-2019, 07:53 AM
Replies: 18
Views: 2,639
Posted By Rotonda

My experience with HARD COAT (type III in your...

My experience with HARD COAT (type III in your citation above) anodizing is extensive (I made almost all of the pans in use by pizza hut, for instance). I know the differences between hard coat...
Forum: C3 General
06-03-2019, 06:46 AM
Replies: 18
Views: 2,639
Posted By Rotonda

You are quite incorrect. In this thread I...

You are quite incorrect. In this thread I described the method I used to remove the anodization and the method I used to paint them. I am quite satisfied with the result.

Perhaps you would like...
Forum: C3 General
06-02-2019, 08:05 AM
Replies: 18
Views: 2,639
Posted By Rotonda

Anodizing aluminum does NOT increase the...

Anodizing aluminum does NOT increase the mechanical strength of the anodized object. It is a surface treatment, a controlled oxidation of the surface to provide a hard smooth outer surface to...
Forum: C3 General
05-31-2019, 06:06 AM
Replies: 18
Views: 2,639
Posted By Rotonda

First, you need to strip (not sand) off the...

First, you need to strip (not sand) off the anodized surface. This surface makes the piece more shiny and harder, preventing many scratches and protecting against corrosion. It also seals the...
Forum: C3 Tech/Performance
05-29-2019, 11:43 AM
Replies: 30
Views: 3,187
Posted By Rotonda

Agreed, there was no 3.05 ratio, BUT there WAS a...

Agreed, there was no 3.05 ratio, BUT there WAS a 3.08 ratio which was used extensively in the later rubber bumper C3's, especially automatics. Rather than changing the ratio, put in a 700R4. The...
Forum: C3 General
05-19-2019, 06:45 AM
Replies: 1
Views: 450
Posted By Rotonda

On the inside of the firewall, above and to the...

On the inside of the firewall, above and to the left of the brake/clutch pedal.

If replacing fuses, suggest you use the kind that light up an internal led when they blow. You'll spend a lot less...
Forum: C3 General
05-16-2019, 07:57 AM
Replies: 6
Views: 1,191
Posted By Rotonda

I assume that you are bonding a fiberglass or...

I assume that you are bonding a fiberglass or flex glass front bumper onto your 74.

I've done this with my 77 I used a flexglass bumper cover onto the body using West Systems epoxy. I did the...
Forum: C3 Parts for Sale/Wanted
05-14-2019, 07:32 AM
Replies: 3
Views: 566
Posted By Rotonda

I will take the 1977 AIM CD. See PM

I will take the 1977 AIM CD. See PM
Forum: C3 Tech/Performance
05-05-2019, 07:24 AM
Replies: 1
Views: 496
Posted By Rotonda

A great deal of the early work was done on the...

A great deal of the early work was done on the digital corvettes forum. I am not a member, but this may be a good place to look for documentation.
Forum: C3 General
04-30-2019, 07:58 AM
Replies: 3
Views: 673
Posted By Rotonda

If it is stock, it is bolted on. The nuts are on...

If it is stock, it is bolted on. The nuts are on the reverse side of the bumper cover. They are difficult to get to because they are immediately behind a triangular support (it prevents the bumper...
Forum: C3 Tech/Performance
04-25-2019, 08:20 AM
Replies: 4
Views: 2,607
Posted By Rotonda

I have a much modified late Tuned Port system in...

I have a much modified late Tuned Port system in my 77. The TPI system used a cable and the 77 originally had a throttle cable system. I modified a Lokar TPI cable system to work with the original...
Forum: C3 General
04-24-2019, 06:34 AM
Replies: 7
Views: 631
Posted By Rotonda

:iagree: Beware of Bubba. Notice the true...

:iagree:

Beware of Bubba. Notice the true dual exhaust, which was not stock. Also notice the R.H. pipe routing. It was a DIY, not done professionally.
Forum: C3 General
04-16-2019, 07:50 AM
Replies: 8
Views: 1,438
Posted By Rotonda

I have a 77 and I've been in this area. From the...

I have a 77 and I've been in this area. From the photo, I believe that the impact tore flange that the bumper cover mounts to away from the body (the jagged fiberglass in the lower part of the...
Forum: C3 General
04-08-2019, 07:05 AM
Replies: 14
Views: 1,006
Posted By Rotonda

As a general rule: 1) lighter colors will tend...

As a general rule:
1) lighter colors will tend to conceal more of the flaws in the substrate, and
2) metallic will tend to emphasize flaws in the substrate more than a solid version of the same...
Forum: C3 General
04-02-2019, 10:46 AM
Replies: 5
Views: 923
Posted By Rotonda

1) Your 77 was, almost certainly, equipped with...

1) Your 77 was, almost certainly, equipped with an R4 compressor. Replacements are available, but they weren't well regarded in the day and there are far superior compressors available (Please see...
Forum: C3 General
03-31-2019, 01:53 PM
Replies: 10
Views: 1,102
Posted By Rotonda

I finished my 77's tray by cutting and gluing in...

I finished my 77's tray by cutting and gluing in a dark gray felt. into it. Turned out good, with the additional advantage of muffling/preventing the rattling noises that came whenever I put some...
Forum: C3 General
03-29-2019, 06:26 AM
Replies: 19
Views: 1,000
Posted By Rotonda

Bueler makes a variable delay (2 seconds to 3...

Bueler makes a variable delay (2 seconds to 3 minutes) relay in 4 pin Bosch form. Add this to your electric fan controller wiring and you can have the fan energized up to 3 minutes later than it...
Showing results 1 to 25 of 495
 
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