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do you have any pics?
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i have a couple from when i first set it up. i would have to dig through my har drive tho. why?
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o man, im almost embarrassed to show these!!! the engine bay looks so nasty (i had recently had the hood refinished/painted and they didnt remove it!! thats where all the "dust" is from). there are pics on pages 2, 3, and 4 i believe. keep in mind, THERE HAVE BEEN MANY CHANGES SINCE THIS THREAD WAS MADE. just hold onto your horses until i get the motor back in!
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shit, fergot to post the link!!!
https://www.rx7club.com/2nd-generation-specific-1986-1992-17/fc-supercharger-write-up-711116/ |
you'll be fine with 550/680 but if you ever plan to do any other mods you might as well go 720. but if you do you'll have to tune, obviously..
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Originally Posted by *TOUCH*
(Post 8541676)
hey guys, i just wanted some opinions on this: i have an 86 gxl that has a paxton sn89 supercharger on it with the upgraded impeller (1200 cfm vs. stock 800 cfm) and pulley. although you are supposed be able to run the s/c safely on the stock NA fuel system, i wne t ahead and installed 550 cc secondaries, a walbro 255, and a vortech rising rate fpr, controlled by an S-AFC II (can never be too safe). however i recently blew the motor, although i kno it wasnt due to lean detonation because it was tuned pretty rich. (i beleive it was due to the high compression NA rotors + hot air charge due to lack of intercooler +old age of motor)) either way, while its being rebuilt i went ahead and installed TII rotors (lower compression) and plan on installing a water injection system for EXTRA safety. my question is, should i just upgrade the primaries to 550cc as well, or will this be even more overkill? either way, running too rich wouldnt be a problem since i have an safc, right? thanks in advance
I hope it works out and the fuel mods help. You probably need an ecu that will allow you to retard the timing as well. Good luck! |
Originally Posted by jackhild59
(Post 8571567)
Most supercharger threads end with a blown engine, this thread starts with one. :(
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