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-   -   I heard an interesting rumour from a friend... (https://www.rx7club.com/2nd-generation-specific-1986-1992-17/i-heard-interesting-rumour-friend-264597/)

Ryu 01-25-04 08:59 PM

I heard an interesting rumour from a friend...
 
he's a mechanic i work with and he told me that with 720cc secondaries, stock primaries, full exhaust, intake, and a standalone fuel management, that its possible to see 300+ hp with an N/A FC.

he said that you need to use the standalone to set the injector duty cycle to 80%. after doing that, with intake and full exhaust the car should be putting out around 300hp on an N/A FC. is this true or not?

to me it sounds to good to be true.

hybridracer 01-25-04 09:02 PM

Not true

Dan H 01-25-04 09:02 PM

I want what he is smoking. Why would you set the duty cycle to 80%? More fuel does not equal more power unless there is more air for the mixture.

You're not even going to see close to 300HP. I wouldn't trust him if he was my mechanic....but then again, I do most of the stuff myself.

1987RX7guy 01-25-04 09:06 PM

Shiat I need some of that majical weed. O_O

Only peripheral ported N/a engines get close to that number. Otherwised your around 150-190hp so no its not true.

Ryu 01-25-04 09:07 PM

thanks guys. i thought the same thing. i even told him that without more air that the engine would just run stupidly rich but he swore it was true. he's a mechanic at the toyota dealership i work at so its not like he see's rotary engines to often.

casio 01-25-04 09:08 PM

for the simple fact that people sometimes misinterpret what is said, have your friend write out how he sees this as being possible. unless what you say is verbatim, in which case he is either crazy or stupid. benefit of the doubt, i'll go with crazy.
some professional porting and that may be possible, but i can't vouch for the injector sizes. i don't know the math to figure out how much horsepower can be made with X size injectors [in this case, 2(440) and 2(720)].
i think n/a injectors are 440.. i dont recall.

Ryu 01-25-04 09:31 PM

i'm gonna need a rebuild in the coming months and asked this to veryify if he was right. seeing as he isn't though, i'll probably go ahead with my original rebuild plans and swap the 13b for a 89-92 13b-t. thanks for clarifying this rumour guys.:D

Wicked_razor 01-26-04 11:50 AM

you said first post full exaust and intake, that helps but still not 300

torean 01-26-04 12:12 PM

not even 200....if thats true...i'd sell my T2 and buy a NA....maybe not that drastic....get 1 of each....

RotaryResurrection 01-26-04 01:34 PM

:smoker:

gsracer 01-26-04 02:07 PM

hahahahhahah


see above post

Aaron Cake 01-26-04 02:35 PM


Originally posted by Ryu
thanks guys. i thought the same thing. i even told him that without more air that the engine would just run stupidly rich but he swore it was true. he's a mechanic at the toyota dealership i work at so its not like he see's rotary engines to often.
It doesn't matter. That kind of gain would be laughable for a piston engine as well...

Ryu 01-26-04 05:10 PM


Originally posted by Aaron Cake
That kind of gain would be laughable for a piston engine as well...
i know, it didn't seem feasable to me either. i just thought i'd ask to confirm his lack of knowledge.


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