rx7 SE

iTrader: (5)

I am in the process of tuning my TII myself with an rtek 2.1. Has anyone heard of any rotary tuning books out there that may explain the physical and thermodynamic concepts of tuning a car? I understand the jists of it, but I'd like to know as much as I can.....plus, I haven't read a book (that wasn't required at least) for ages


Thanks,

~Ant

Evil Aviator

The rotary engine involves the same thermodynamic concepts as a piston engine. If you have absolutely no concept of how to tune an engine, then you should get some help from a local tuner or take a class on tuning at a local technical school or at a seminar such as EFI 101. Tuning is better learned from doing rather than reading.

Aaron Cake

iTrader: (1)

A good introduction to basic rotary tuning is "Street Rotary" by Mark Warner.

http://www.amazon.com/Street-Rotary-.../dp/1557885494

Jimmy2222

iTrader: (3)

I have this book and I read it throughout the last school year, great stuff. Really helped me a lot.

rx7 SE

iTrader: (5)

Thanks guys! Just ordered the book off of Amazon.

I've done my research and have learned bits and pieces at school for tuning piston engines, but, if there is any way I can learn more for a fair price I"m all for that. I figured the local tuner in the area (Bryan at Rotorsports) would charge me just for advice, haven't asked him yet so who knows.

BDC

+1.

TeamRuffRacing

That book is amazing! it teaches you so much about our cars and it shows you the concept behind most of the important thing. i would suggest you get it. it would help!

Evil Aviator

Why don't you see if he can show you what he is doing while he is tuning your engine with the Rtek? You are going to need to pay for dyno tuning if you want your engine tuned well anyway, so why not see if you can pay a little extra for a lesson too?

rx7 SE

iTrader: (5)

Here was my game plan..see what you guys think. My setup as of now is an rtek 2.1 720/1000 with turbonetics 60-1 hybrid (practically BNR stage III with an unclipped turbine wheel), walbro pump..yada yada.

Arghx on the forum has posted some very conservative timing maps that I trust to input to my rtek before I touch any fuel maps. He also said that he has never noticed much gain in power with aggressive timing or rather, the few extra hp's isn't worth the detonation risk...therefore I probably won't alter his map all that much. The rtek 2.1 has a 720/720 factory injector setting therefore my idle and daily driving fuel map should be relatively good to go but boosting I expect to be stupid rich, especially with my meth kit injecting too..but I like rich. So I plan on pulling fuel slowly until the 'assumed' stutter goes away so the car is more driveable and then taking it to the track to tune the WOT and get it roughly around 11.0 range. Once the WOT row is straight I plan on smoothly pulling fuel on each lower row until the car's AFR's are to my likings.

Does this sound about right fellas?

rx7 SE

iTrader: (5)

Surprisingly enough with my 740/1000cc setup it drives perfectly smooth ....until I boost and the AFR's drop into the 8's , feels like I lost a good 50 hp or so cuz of the rich tune

rx7 SE

iTrader: (5)

Just finished reading "Street Rotary". Excellent book, well written, I almost wish he would have dove a little deeper into ignition timing and it's affects on EGT's, but with that said, he did cover a LOT of great information.