Chris Wilson Posted April 4, 2010 Share Posted April 4, 2010 You would have to mill flats inside the block on the main oil gallery part of the casting, then drill and tap for squirter holes, and part drill the anti turn peg holes. I may have a link to how people do it on Volvo blocks. Here it is: http://forums.turbobricks.com/showthread.php?t=115422&highlight=oil+squirter Quote Link to comment Share on other sites More sharing options...
dr_jekyll Posted April 4, 2010 Share Posted April 4, 2010 so if the tt pistons are fitted with a stock na hg what compression would this give ? would it be the same as the tt or still slightly higher due the pertruding cylinder top in the head? also on a scale of 1-10 how important are the oil sqirters Quote Link to comment Share on other sites More sharing options...
Graham S Posted April 4, 2010 Share Posted April 4, 2010 so if the tt pistons are fitted with a stock na hg what compression would this give ? would it be the same as the tt or still slightly higher due the pertruding cylinder top in the head? also on a scale of 1-10 how important are the oil sqirters Dam good question! Obviously we know why they are there, but is it a necessity if going down that route?? Quote Link to comment Share on other sites More sharing options...
dr_jekyll Posted April 4, 2010 Share Posted April 4, 2010 i wouldnt have thaght so. as iv heard that alot of the top drag supras in the us remove them and alot of the big power na-ts dont run them , but id like to hear the veiw of a trusted voice on here Quote Link to comment Share on other sites More sharing options...
Kirk Posted April 4, 2010 Author Share Posted April 4, 2010 so if the tt pistons are fitted with a stock na hg what compression would this give ? would it be the same as the tt or still slightly higher due the pertruding cylinder top in the head? Only one way to find out for sure is to measure it properly. A rough guess would say around 9:0:1 which id say is a good medium to build on. Never fit a TT HG with TT pistons! Quote Link to comment Share on other sites More sharing options...
dr_jekyll Posted April 4, 2010 Share Posted April 4, 2010 (edited) thanks martin. when i have funds available i do want to buid a higher powerd na/t engine so i hope you dont mind me scalping you for info. the setup i want would be a stock na head with on a ge bottome end using gte pistons with an na head gaskett. at a 9.0;1 comp ratio how much boost could i run without the aid of water injection without pre ignition looking for a 11.0 afr on wot. would the tt pistons go straight on my ge rods or would i need the rods too ? and would you say the jets are needed. Edited April 4, 2010 by dr_jekyll (see edit history) Quote Link to comment Share on other sites More sharing options...
Chris Wilson Posted April 4, 2010 Share Posted April 4, 2010 Someone needs to measure the chamber volume on an N/A head. If someone has a scrap N/A head I will do that. I have plenty of TT ones to measure, but I think I have it written down somewhere from past work. Quote Link to comment Share on other sites More sharing options...
Kirk Posted April 4, 2010 Author Share Posted April 4, 2010 Ive got one on the kitchen table as it so happens chris But id need it back eventualy Quote Link to comment Share on other sites More sharing options...
Chris Wilson Posted April 4, 2010 Share Posted April 4, 2010 I'll check tomorrow if I have an N/A head off an engine, but I think they are all TT ones. I'd rather have a scrap one, in case it gets damaged or lost in transit Quote Link to comment Share on other sites More sharing options...
Kirk Posted April 4, 2010 Author Share Posted April 4, 2010 (edited) Ah sod it then... im tinkering with other ideas now anyway so you can have it chris if you dont find one Its fully stripped of its valvetrain though. Dont know whether this would matter Edited April 5, 2010 by Kirk (see edit history) Quote Link to comment Share on other sites More sharing options...
dr_jekyll Posted April 14, 2010 Share Posted April 14, 2010 (edited) i took the head of a ge engine this morning and it dose not have the raised combustion dome like the one in the firs pics, the bottom of the head is flat more like the gte head?? also to romove the crank will i have to take the face plate off the block , or is a case of removing the cam cog and sliding it our backwards? Edited April 14, 2010 by dr_jekyll (see edit history) Quote Link to comment Share on other sites More sharing options...
TLicense Posted April 14, 2010 Share Posted April 14, 2010 also to romove the crank will i have to take the face plate off the block , or is a case of removing the cam cog and sliding it our backwards? Yes, no. It has to come out veritcally. Quote Link to comment Share on other sites More sharing options...
dr_jekyll Posted April 14, 2010 Share Posted April 14, 2010 cheers. how do i then get the crank free of the face plate, pully puller on the cog? Quote Link to comment Share on other sites More sharing options...
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