johnc

If we are talking about real installations in Zs here in the US then yes, the capabilities are about the same. Jeff Priddy and Stony have (or had) similar horsepower numbers. I don't know about cost but once you start getting above 500hp I assume a smart engine builder is replacing rods, pistons, etc. in both engines. Now, if we are talking about dyno queens or one off JDM builds, then the RB has more impressive numbers (both horsepower and cost).

Acetone. Don't use any degreaser/cleaner that has chlorine in it (Brake Kleen, Bleach) because the residue turns into small amounts of chlorine gas when heated. In WW1 that stuff was called Phosgene and the Germans sprayed a lot of it on the British and French troops.

Some people call me chicken little... http://www.circletrack.com/techarticles/76778/ http://www.schroth.com/installation-instructions/en/index.html

Here in SoCal all the machine shops I deal with (5) are busier then a one legged man at a butt kicking contest.

Agreed, leakers should be fired. But on Aaron Brown's CNN show earlier this week his headline was, "Another Watergate?" Give me a break! And Wilson is one of the slimiest people in DC. Rove probably didn't commit a crime but his discussions with reporters was inappropriate and he should resign.

.100 and .120. SCCA mandates .080 minimum but the roll bar I built was for a street car that will weigh around 2,800 lbs empty.

Well... now you have impurities in the weld. It "may" look OK but its not. Clean your parts, both physically and chemically, before welding. It makes welding much easier and the welds with be stronger. Preparation is especially important for proper aluminum welding.

A personal preference. Bars attaching to other bars are done to transfer load within the roll bar or cage structure. Ultimately the load being transferred has to go to the vehicle somewhere and the more places it can be spread around the better. I would rather have bars attaching to vehicle structure if at all possible. But, sometimes rules get in the way: SCCA mandates 8 points of attachment to the vehicle for IT cages.

Personally, I think the rear braces at .095 are plenty strong. But, SCCA mandates that the rear braces be the same wall thickness as the main hoop so that requires .120 wall for almost all of our 240Zs. I personally wouldn't be worried about attaching the .120 wall rear braces to an .095 strut tower bar as long as they were very, very close to the strut towers.

42

Nope. Ask anyone who's drag or road raced a GM 4 link coil over rear or a late mdoel Camaro or Firebird. Wheel hop is caused by the suspension allowing vertical or longitudinal movement of the drive wheels in response to acceleration torque. I would check the rear suspension bushings including all the diff mounts.

That should help Dan. The server needs to cool down a bit and having you gone for a few days should drop the utilization percentage by 50%. Have a good trip, watch out for RVrs.

Toe-in on bump is not a good thing. It tightens your line and tends to make the rear of the car loose.

No rule but the straighter the better. One less thing for the tech guys to worry about.

Top is better especially if you're going to weld a tab to the roof support near the hatch hinge mounting area. SCCA allows the rear braces no lower then 6 inches from the top of the top of the main hoop and at an included angle of no less then 30 degrees. I tacked the rear supports to the main hoop in the car and then welded outside the car. The reason I mounted the bottoms of the main hoop to the boxes I built was to ensure roll over loads went as perpendicular into the plating and main hoop as possible. In a roll over I wanted to reduce sheer loads on the tubing and welds. You will also either need a diagonal brace in the main hoop (SCCA/NASA rules) or an X brace in the rear braces (FIA rules).

http://www.nea.org/annualmeeting/raaction/nbi.html Look down the list and find the first item on the National Education Association's annual meeting agenda that has anything to do with education...

http://www.foreignpolicy.com/story/cms.php?story_id=3079

AN stands for Army/Navy and is an old military standard for hose and fittings used on ships and aircraft. The hoses and fittings are identified by a dash number (-4, -6, etc.) which corresponds to the outside diameter of a spec metal tube measured in 16ths of an inch. A -8 braided hose or fitting corresponds to the spec 1/2" metal tube. All fittings use a 37 degree single flare. This standard gained acceptance in the auto racing community in the late 1950s when huge lots of AN hose and fittings hit the surplus market as a result of downsizing in the military.

B23 is good too, but the B21 should be cheaper in the junkyards.

Volvo B21.

Man, I thought all you Chebbie V8 guys started with 3/8" plate and worked up from there.

Well, yes and no. If proper preparation is made for GMAW welding then it will be just as strong as any other welding method. But, proper preparation for GMAW welding is not the same as proper preparation for SMAW. GMAW on steel sections thicker then 3/8" require a double V groove and U grooves are required on sections thicker then 1". Also, the type of spray transfer also affects penetration. If the typical short circuit type transfer is used then penetration will be less then ideal in larger sections. If a globular, pulsed spray, or spray types of transfer is used deep penetration can be achieved and amp levels of 400 DCEP is possible. In the structutural and pipe fitting classes and testing I saw at Lincoln Electric, GMAW was perfectly acceptable and was tested for.

With a Nissam Comp pan you can run a quart low without any danger to the engine. With any other pan on an L6 it would be foolish to run 1 qt. low to gain some small increment of horsepower. Long duration, high G right turns cause oil starvation in the stock L6 oil pan.

Dude, I'm NOT going to retype what's already been posted in thousands of threads on this site. Search, search, search.

How not to make an arguement before a judge: http://www.ca7.uscourts.gov/fdocs/docs.fwx?submit=showbr&shofile=04-2732_018.mp3