Well I was going to be gasp a spec-v when I was driving buy some streets in Calgary and saw an fc. Well it got me thinking that I miss my spec-v like hell and well an fd is in my price range. But if I get one should i leave the stock twin turbo configuration or get a bigger single turbo. Plus I heard that fd's are pretty bad on maintenance any truth to this and how would I keep the engine as cold as possible?? front mount intercooler, intake anything else???

 

Start here:

https://www.rx7club.com/forum/showth...hreadid=147498

 

Twins have wonderful throttle response in the low to mid rev range (2500 to 5500), but twins are limited in power production without a street ported motor, and even then, the street ported motor is limited by the smaller volume of air (compared with a single turbo) produced by twin 50-mm turbos. A big T78 single, or GT35/40 hybrid turbo makes bigger power as the revs climb past 5000 rpm. It all boils down to driver preference--low/mid range response, or top end acceleration? We can't have both unfortuntately...

 

I kind of have the best of both worlds with low-midrange response and great top-end. I'm still setup sequentially with upgraded twins. Single turbos are great for mid-top end performance but are laggy down low (2500-3K rpms) I hear people say "well, who drives around at that rpm anyways)...I do and don't like to downshift everytime I want power. Only downfall to sequential twins is the rat's nest but if the hose job is done it can work pretty well.

 

My J-spec twins make nearly instantaneous throttle response from 2200 rpm to 6000 rpm. FWIW, I do feel steady pull with a KDR street ported motor from 6000 to 8000 rpm; but this pull is NOTHING like the pull nocab72's GT35/40 single with monster port Pineapple motor made while I rode shotgun in his silver beast My butt dyno says ~100 more hp at the top end with Kyle's beast, than in my "Speed Sauce Racing Rx7 R1" (see my sig below for mod list). Last I read, Kyle's beast put out 450 rear-wheel-hp...