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lewisfk
11-09-2009, 11:09 AM
Is the SR engine internaly balanced or externaly balanced? The machine shop i'm using is asking! Please help!
SuicidnS13
11-09-2009, 11:19 AM
Well the crank pulley works as a harmonic balancer if thats what your wondering. But the entire engine should be balanced and blue printed at build up anyways.
duballstar37
11-09-2009, 11:25 AM
Your machine shop is asking your this???!?!
ericb382
11-09-2009, 01:34 PM
Internally. The crankshaft is fully counterbalanced and we do not have a harmonic balancer. I'm hoping the machine shop asked this before seeing your motor.... Either way, go to a different machine shop. Spend a little extra $ or drive a little farther, whatever it is, go somewhere that has experience with sr's. I didn't my first time around (to save a couple hundred) ended up costing me about $800 and 6 months on my build.
lewisfk
11-09-2009, 01:45 PM
Your machine shop is asking your this???!?!
YES, the company i'm using Has never machined a sr20 block and they want all avaliable info about it. I rather them ask than assume! They took the extra measure to get a TQ PLATE with out no cost to to ensure proper Bore/Hone . The company I'm using has worked on my cousins engines for over 10 years. My cousin runs 440 engines natrual asp. with the numbers of 800 plus to the wheels.

Well the crank pulley works as a harmonic balancer if thats what your wondering. But the entire engine should be balanced and blue printed at build up anyways.

Yes they will be balancing everything and blue printing the engine. The more the company knows about the engine the better! No one in the Corpus Christi area has built or machined an sr engine to my knowledge and trust me i looked for over two years! Its not like the San Diego area were u have 100 pluss choices in a 100 square miles! The nearst shop with any experince with the SR is about 250 miles away! So yes please forward any info on the engine you can to me! If you have any suggestions please send them my way!:wavey:
Sileighty_85
11-09-2009, 02:13 PM
just print out an FSM for them
lewisfk
11-09-2009, 02:28 PM
just print out an FSM for them

i did but it had a few things not covered!
ericb382
11-13-2009, 12:56 PM
I would drive the 250 miles to go to a machine shop with sr experience. The machine shop I use is about 180 miles from me. I printed off almost the entire EM section of the FSM for the first machine shop I went to (with no sr experience) and they still screwed me over.