Subarunner Posted October 20, 2004 Share Posted October 20, 2004 My 86' Turbo wagon engine is nearly worn out and I have an 86' carbed engine with only 120K on it. Can I bolt the Turbo stuff onto the carbed long block or are they set up differently for turbo? Thanks Have Fun! Corbin Quote Link to comment Share on other sites More sharing options...
WJM Posted October 20, 2004 Share Posted October 20, 2004 everything will bolt up. Be careful aobut timing and run premium gas. the only mod is the rear block PCV vent is not present on CARB/SPFI blocks...so you will ahve to block that off for the turbo stuff on the manifold. Easy peasy fix. Quote Link to comment Share on other sites More sharing options...
subaru_styles Posted October 20, 2004 Share Posted October 20, 2004 do it.. wow, these turbo carb blocks are starting to become more popular. Quote Link to comment Share on other sites More sharing options...
calebz Posted October 20, 2004 Share Posted October 20, 2004 A little clarification The turbo stuff will NOT bolt on to a carb long block. It will however, work on a carb shortblock. You need to use the turbo heads and associated stuff. Quote Link to comment Share on other sites More sharing options...
Snowman Posted October 20, 2004 Share Posted October 20, 2004 I don't want to sound like a naysayer, but for the sake of informedness and since there is the possibility that I could pursue a similar setup in the near future, what is the longest that one of these turbo-on-carb-block engines has held together? The most long-lived one I know of is WJM's, which was good for something like 20k. Quote Link to comment Share on other sites More sharing options...
subaru_styles Posted October 20, 2004 Share Posted October 20, 2004 wjm used a spfi block, BIG difference in compression there. the carb block is just slightly higher than [turbo] stock Quote Link to comment Share on other sites More sharing options...
WJM Posted October 20, 2004 Share Posted October 20, 2004 A little clarification The turbo stuff will NOT bolt on to a carb long block. It will however, work on a carb shortblock. You need to use the turbo heads and associated stuff. Oh, i missed that LONG/SHORT block part...NO..wont fit LONG block...but will SHORT block. I don't want to sound like a naysayer, but for the sake of informedness and since there is the possibility that I could pursue a similar setup in the near future, what is the longest that one of these turbo-on-carb-block engines has held together? The most long-lived one I know of is WJM's, which was good for something like 20k. 24k miles. s_s: Yes, 9.5:1 as compared ot 8.5:1 is ALOT in turbo world....I still dont see how the shortblocks have different compression ratios....as the P#'s were the same the last time I looked them up.... Quote Link to comment Share on other sites More sharing options...
subaru_styles Posted October 20, 2004 Share Posted October 20, 2004 s_s: Yes, 9.5:1 as compared ot 8.5:1 is ALOT in turbo world....I still dont see how the shortblocks have different compression ratios....as the P#'s were the same the last time I looked them up.... please correct me if I'm wrong, but isn't it mostly the pistons that create the compression differences. Quote Link to comment Share on other sites More sharing options...
calebz Posted October 20, 2004 Share Posted October 20, 2004 s_s: Yes, 9.5:1 as compared ot 8.5:1 is ALOT in turbo world....I still dont see how the shortblocks have different compression ratios....as the P#'s were the same the last time I looked them up.... No, the part numbers are different.. This came up a while back and I actually posted the part numbers. It is 100% the pistons that make the difference between the ranges of compression in EA82 motors. IIRC, I posted P/Ns for 1987, as it was the only full production year with all three fuels systems in the US. Basically it is like this Piston tops: Turbo - concaved carb - Flat SPFI - convex Quote Link to comment Share on other sites More sharing options...
NorthWet Posted October 20, 2004 Share Posted October 20, 2004 I don't want to sound like a naysayer, but for the sake of informedness and since there is the possibility that I could pursue a similar setup in the near future, what is the longest that one of these turbo-on-carb-block engines has held together? The most long-lived one I know of is WJM's, which was good for something like 20k. Gee, so if/when I build my turbo-on-SPFI-block, all I have to do is last more than 20k to be considered a success? Quote Link to comment Share on other sites More sharing options...
Subarunner Posted October 21, 2004 Author Share Posted October 21, 2004 Thanks for the great info everyone! I think I go ahead with the Turbo on carb short block and drive the crap out of it while I put together another turbo motor on the side. Have Fun! Corbin Quote Link to comment Share on other sites More sharing options...
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