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02-04-2009
Hey guys just wondered if it was possible/cost effective to swap my series II n/a to a series III s/c, or to get a L67 instead. Any estimations on cost for either one? I definitely want to supercharge, just not sure which road to take. Are there more mods for one or the other? And what parts would be needed to make the new engine fit? Thanks in advance for any help.
02-04-2009
it has been done and it is fairly cost effective if you know how to find parts.
for the whole engine expect something in the area of $600-1000. for a top swap (you put the supercharged motors top end on the n/a bottom end) i would expect something in the area of $400-800.
all the parts for both series are interchangeable minus a few that got a little sophisticated in the series 3 (drive by wire TB, etc.)
02-04-2009
ive heard that a top swap isnt as good though, as the L36 engine has a harder time with the added power of the s/c.
02-04-2009
not true, long as the tune is fine the motor will be fine
02-04-2009
i still cant decide which to do though. top swap will probably be cheaper. which one will bring me more power? and if i do swap engines, should i upgrade tranny as well? ive heard the non-hd tranny will bring me more torque, which is what im looking for, but the hd tranny will last longer. is there a way to beef up the non-hd tranny?
Last edited by themagicdustman; 02-04-2009 at 04:58 PM.
02-04-2009
top swap will make more power on the same pulley as a motor swap would because of the higher compression. youll also need more supporting mods to be able to do that due to the higher compression.
the only upside to the non-hd tranny is that it has the 3.29 gears (instead of the 2.93s in the HD) so you get a little more acceleration. with as much torque these cars make it doesnt make a ton of difference what gears you have since when youre decently modded first gear is useless. you can convert a non-hd to an hd with a few parts, but its not really worth it unless you beat on your car like a redheaded step child. my non-hd is holding up to 131k miles of abuse so far, but i dont let it do 3-1 downshifts and i dont do burnouts. i usually roll into the throttle.
02-04-2009
Why are you trying to swap the engine that is in you're car now for a L36? Why not put a top swap on the engine that is in the car now.
02-04-2009
he is trying to swap the l36 for an l67 or l32. learn to read, silly.
02-04-2009
just trying to figure out which would be better to do. im not going to be going to tracks or anything, just wanting more power out of my car.Originally Posted by TDCRacing
02-04-2009
Def. just do the top swap.
02-04-2009
the hd tranny will bolt up to the l36 right?
02-04-2009
Yes...all the blocks are the same. Just the accessories are different.
02-04-2009
sweet. thanks for all the input
02-04-2009
youll have to switch out the flywheel for the one that is on your l36 so it can mate up with the transmission.
02-04-2009
another ? would it be possible to put an L47 aurora engine in my car? or shouldnt i even bother due to few mods?
02-04-2009
should be easy enough if thats all thats req'd.
02-04-2009
youll have to do a couple wiring changes for the MAP and BBV as well. you can get an l67 swap kit from ZZP with all the wires and directions needed.
i wouldnt bother with the aurora motor. isnt worth the hassle to try and make it work with the limited amount of things you can do with it.
02-04-2009
yeah thats kinda what i figured.
02-04-2009
the reason i was looking into switching engines was that the gen V can go on it. idk if they fit on the series II or not. i was going to try to get them all together (series III/4t65e-hd/gen V ) thinking it might be cheaper. dont the series III engines make more stock hp or no? also i know there is a thread with the parts i would need to do an engine swap/top swap. anyone have a link, theres a lot of threads out there. lol
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