Hijacker wrote:Tubular manifolds need to have the flange braced to something solid (ie the block or head) or else the vibrations from the turbo will cause the collector to prematurely crack.
On crappy quality tubulars, the brace does little to stave off early destruction.
Tollerances for compression differences can be 10 psi across the board. Any more than that and there will be issues.
Also, I have yet to see a red top motor that actually has the mileage claimed to be on it. They almost always carry more than what is advertised, so take that number with a grain of salt
well i went with the motor, the compression test results were 140-150 with his gage and 150-155 with mine. Camshaft wear was perfect, and he started the thing up for me and there was no bag ticking or clacking coming from the head. as far as the mileage, it is a clip, and i just read what it said on the dash. i also noticed that the headers had been repaired because the tubular design had caused them to crack just like Hungryjoseph said. im thinking of doing a post about my 240sx build-up. would that be interesting, or have you guys seen way to many build posts already? let me know. Here is a pic!
it sucks cuz somone jacked the spark plug cover and the radiator cap!
Modified by redsx13 at 9:59 PM 6/24/2008