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View Full Version : S13 sr20det detonation, one cylinder, engine work questions


moses
12-05-2009, 09:36 AM
Hopefully I get a better response in engine tech. I got a sr20det and got really bad detonation in one cylinder. Don't know why yet but I'm workin on it. Injectors are good. But anyway. I just got back from the engine shop and he said that the block was cleaned and everything was good with the block. He just has to mil the block and the head a little more. The head needed 2 valves. Now this guy is one of the best in Arkansas and builds strong v-8's and sprint cars that rev to 9000 rpm so he does have experience. I just want to ask you guys your opinion on this stuff with a couple of questions.
1.Does $2289.00 sound reasonable for all the head and valve job work and block work (assemble short block) with pistons and rods, balance everything, and coating the piston and head with the protective stuff?
2. He said if he balances everything I won't need the ATI crank pulley and I should just get the aluminum pulley or stay stock because the vibrations won't affect it? I wanted the ATI one but if he said it's not really worth it I'll get the light one that is stock size.
3. He is going off the sr20de specs for clearences. Is that ok?
Thanks for your help guys. I just don't really trust a lot of people in Arkansas. I am going to go to Texas to get it tuned.
4. He thinks I need a new crank and flywheel because of this but it drove just fine when I was driving. Think I should get another. It was loose at one point in time.
http://i340.photobucket.com/albums/o334/driftn240sx/1227585933.jpg

jdm213
12-06-2009, 04:25 PM
hmm well if I were you I wouldnt cuz he may have experiences with other types of engines but not sr so I would go with someone that know whats up and look for a better deal!:bow:

slim_240
12-11-2009, 01:32 PM
keep looking around and see if anyone has experience with japanese motors. also i'd go with the actual sr20det FSM. i'm sure you'll find tons of info if you search!

deukalionS14
12-11-2009, 03:45 PM
i agree with these guys. you should find someone that has worked on SR's before. I'm sure he does good work but he at least should go with the SR20DET FSM as mentioned just to be sure