If I touch the gas softly, it can falter, sometimes stall. The only running issue I have is a flat spot on initial acceleration. If you didn't have running issues, whey were you checking the compression? I also RUN A 9550 WITH flattop AA 94'S and 1.8 42x36 heads and have Posted: Sat 8:51 pm Post subject: compression gauge Headflow Masters New AMC 42x36mm heads w/Porsche swivel adjustersĭual 40mm IDF Webers - LM-2 - 47.5 idles/125 mains/190 air corr./F11 tubes/28mm Vents - Float height 10.45mm/Drop 32mmīosch SVDA w/Pertronix module (7.5 initial 28 total 3400rpm) No more than 8-10% is more along the lines of acceptable. Location: Seattle, WA./ HB, Ca./ Shizuoka, Japan Source out the most Stock vehicle and keep that way. Numbers Matching VW's are getting harder to find. Direct comparison between gauges is tricky to to the prevalence of low quality testers, but 50psi means something is very wrong either with the engine or your compression tester.ġ977 Westy, Automatic. Sea level, my compression ratio is 7.5/1 if I recall correctly. The gauge should also hold pressure for a while after you have stopped cranking. You have a bad gauge, hose or hose grommet. The compression just doesn't make sense to me considering how it runs! Any insights?Īn engine with 50 psi of compression would crank over really quickly!ġ960 Beetle And 1679cc DP W-100 & Dual Zeniths! The compression went up about 5psi when I put. Head bolts are tight, valves are adjusted, throttle wide open. My 73 2.0L bus runs great, has lots of power, but the compression numbers are all right around 50. Posted: Sat 12:07 pm Post subject: Camper Special & Compressionĭoes anyone know if there are any characteristics of the RAT 9550 cam & "CS" heads combo that would make it difficult to get accurate compression readings? Quick sort: Show newest posts on top | Show oldest posts on top
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |