Old Alfa Racer Pics from So. West Div. - Page 5 - Alfa Romeo Bulletin Board & Forums
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post #61 of 476 (permalink) Old 06-12-2011, 10:29 AM
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Very neat. I also like the transparent headers. Where did you find those? Really tidies up the engine compartment!
Too funny Gordon.
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post #62 of 476 (permalink) Old 06-12-2011, 12:42 PM
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uh.. got any more of that clear? I'm thinking about painting my whole car. I've seen it used only on engines.


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post #63 of 476 (permalink) Old 06-12-2011, 04:19 PM
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There is much to be said for invisibility.

Around 1980, Martini drinkers were calling them "Electric Waters"--for obvious reasons.

Having a number of "EWs" moved one up the ladder of intoxication, I can only recall the ultimate stage.

You had so many that you had assumed the mantle of invisibility.

You doing such stupid things that being invisible would be a blessing.

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post #64 of 476 (permalink) Old 06-26-2011, 01:26 PM Thread Starter
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Headers

I`ll post pocs of the headers, but don`t know if the distinctive Titanium color will show up.

Started in the one piece side exit resonator/muffler. Actually many pieces requiring much fabrication.

The 2.5 inch header collector enters the container, and the pipe is cut away
on both sides for 8 inches then blocked with a baffle.
Exhaust can pass over the enlet pipe for that which exits to the passenger side of the tube, or around behind the baffle. A internal fin directs in the direction of the exit.
Designed for no back pressure, but baffles to reflect the sound waves back on themselves to reduce decibels.
See build pics below:
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RJR Racing

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post #65 of 476 (permalink) Old 06-27-2011, 01:22 PM
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I see the clear paint burned off the headers. You can see them now. I really like that complex outlet. Works like the GTA version, but flatter. Probably will be even more deafening!
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post #66 of 476 (permalink) Old 06-27-2011, 06:39 PM Thread Starter
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Collector/resonator/side exit

It should be significantly quiter as it is built with far more volumn and has baffle placement to reflect soundwaves internally to damp that reflected out.

The sizing was done to reach a correct volumn and a 200% intake to exhaust outlet size. (2.5 intake tube=3.9 sq inch, 1.125 x 10 exhaust+ 11.25 sq inch opening.) The side exit opening increasingly gets larger closer and over the inlet tubing.

Probably won`t be any louder than my 5th mother-in-law`s snoring.

Richard Jemison
RJR Racing

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post #67 of 476 (permalink) Old 06-27-2011, 07:48 PM
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Prolly work better with a Brooklands "fishtale" extractor.


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post #68 of 476 (permalink) Old 06-29-2011, 08:31 PM Thread Starter
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Exhaust outlet

Well it`s back from the coaters, and pics below.

This is really about all the mods I plan for the car.

I am leaving in the Ayem for the races in Savanah (Roebling Rd) and plan to start it for the first time next week when I return.

The GTR project is again seeing effort towards finishing it. It is now at Foy Gilmore`s shop to be "tinned out" Pics of it on rotiserie upside down is attached. I will start a thread on it since it has woken up...
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post #69 of 476 (permalink) Old 06-30-2011, 10:46 AM
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Suggest you might re-think that Guibo protector if you are going to race that car and it has more than stock HP! I'm sure you read the previous threads.
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post #70 of 476 (permalink) Old 06-30-2011, 10:55 AM
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Knowing RJ, I believe this is what you are looking at. It CAN'T come apart!
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post #71 of 476 (permalink) Old 07-01-2011, 04:34 AM
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that looks abite hash for the driveline .Why not use a universal
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post #72 of 476 (permalink) Old 07-05-2011, 07:24 PM Thread Starter
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Universal Joint?

If a universal joint is used, it would require a single piece driveshaft as u-joints must be used in pairs.

This huge giubo is adequate for a 1800 cc motor. Which I started finally and drove around the neighborhood this afternoon. Pretty good power for a mouse motor.

Richard Jemison
RJR Racing

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post #73 of 476 (permalink) Old 07-06-2011, 12:11 AM
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I bet your happy is a pig in mud. I would be. awesome
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post #74 of 476 (permalink) Old 07-10-2011, 08:32 PM
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I keep telling you RJ, all the little ones lack is low end driveline busting torque. Otherwise, it seems they NEVER disappoint!


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Gordon Raymond
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and sometimes, CONFUSED AND INCORRECT, but Larry helps me out.
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post #75 of 476 (permalink) Old 07-11-2011, 05:55 AM Thread Starter
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Mouse Motor

The 1800 cc is still less motor than I am used to. Torque is everything when racing or driving on the street.

The stock gearbox has to go for sure. I will replace it with one of my 2.0 first gear close ratio boxes, as with the 4.56 R&P the first two gears are useless. Might ought to convert R&P to 4.10 as well.

Richard Jemison
RJR Racing

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