kbowen4

Whats up guys? long story long i bought a turbo 350z last year with a bad rod bearing on the cheap (the guy said it used to "miss" above 4500 rpm so he would only go half throttle around those rpms...detonation, he couldnt even change his own brakes). Then i bought a house, the z we to the back burner. I was origionally going to do a light build but ended up with eagle rods, twin disc clutch, brand new crank, l19s, fluid dampr arp main studs, 570cc injectors, other misc items and a haltech(not the one compatible with the flex fuel sensor.) In trying to figure if i should use these ross pistons i that i bought a while back as they are 9.5 compression and have no dish(flat topmeans not much anti detonation) . The major toss up for me is that a few e85 stations opened up near me but if i were to make a small road trip with the car i would be searching for e85 all the time. Fyi the z will be a fair weather second vehicle for me. Im considering running an 8 or so gallon fuel cell in the spare tire area just for e85 and switching between the two (tuning nightmare i know). I for now have the dreaded turbonetics kit that is obviously terrible because of the single 2 inch hotside piping. My plan is to build an engine to support about 600hp, only run about 400 now and change to twin turbo later. My cash flow is not enough to do the twins as well as the rest of the engine build at the moment. Before i have the rotating assembly balanced i need to decide on pistons. I'm a decent fabricator after building a rail buggy so the fuel system will be a challange but definatly doable. (Yes i know ill need different injectors and such for e85) So the question is should i sell these and buy wiseco 8.8 ratio or not, what would you do?
Thanks in advance

MicVelo

Based on your thread title, I have a question....

Don't you only need six?

And that half a piston....hmmmm....



Lose compression much?













Sorry, that line was straighter than a ruler and I couldn't resist.

No real answer for ya, sorry.

turboed350z

Is your power goal of 600 on e85 or pump? If its 85, you *should* be fine with your current rods.

If 600 is on pump, swap them out.

kbowen4

Vic ill make sure to toss out 3.5 pistons then i should be good to go lol

Sylvan Lake V35

iTrader: (23)

I made over 600 with 9.5:1 on 91octane pump gas. higher compression FI builds are becoming more and more popular in recent years, run the 9.5:1 that's what I would suggest even if the thread was titled "what compression should I go with"

str8dum1

iTrader: (11)

chose your compression based on your cams. plenty of compression calculators out there. The more overlap, the higher compression pistons you need.