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-   -   my n/a supercharging project complete (https://www.rx7club.com/2nd-generation-specific-1986-1992-17/my-n-supercharging-project-complete-289791/)

derek1987 04-02-04 11:50 AM

Study hall must be really boring for you to think up a SC for the Rx7:D. Good job man. I am in high school too so I understand study hall is nothing but think time. Keep the work up.

-Derek

zbrown 04-02-04 11:53 AM

I have to go class is over. my full size pics too big so i will have to take them over again on a lower quality. ill post them after school

Madrx7racer 04-02-04 11:53 AM

Good job dood..........w rite up is a MUST for this thread.

zbrown 04-02-04 12:10 PM

i had a free day in Chem. so i took some more pics

zbrown 04-02-04 12:36 PM

1

zbrown 04-02-04 12:39 PM

this is where i am going to put the blowoff valve

zbrown 04-02-04 12:43 PM

another

zbrown 04-02-04 12:48 PM

here is a pic of how much vac i have at idle, ill get a pic of it boosting low in the rpm. I know I know my dash is filthy

zbrown 04-02-04 12:51 PM

another

Dltreezan 04-02-04 12:55 PM

you must do a write up of step to step of how you did this or we will hunt you down and interrogate you and get the info from you. ALL YOUR WRITE UP ARE BELONG TO US.

zbrown 04-02-04 01:04 PM

last one for now,

I have a question for all of you guys, right now i am running with the 5/6th ports tied open and the vdi closed. Will i have better flow with the vdi open or closed. Would it be worth it to make the 5/6th ports operational with the manifold boost. I have a rpm switch to control them and also for the vdi operational or not? Give me any input on this please

SonicRaT 04-02-04 01:07 PM

What did you do about belt tension? It looks like the idler pulley is stationary

zbrown 04-02-04 01:16 PM

their is a slot for the idler to slide up and down up close to 3",

poor_red_neck 04-02-04 01:20 PM

Wow.

Just... wow.


I am in utter aww. :D

That looks FANTASTIC!

I didn't catch this... but did you upgrade injectors? I have a S-AFCII as well, but still the stock N/A injectors and pump.

I wonder if upgrading to TII injectors and pump would be sufficient?

I would keep the VDI open... since during low RPMs you will have enough air flow to make the VDI efficient.

SonicRaT 04-02-04 01:21 PM

Wire the VDI open once and see how it goes, as far as I am aware by design it opens up two shorter paths, and as it looks it leaves the others alone.

MichRX7 04-02-04 01:21 PM

Re: keep this alive
 

Originally posted by chris406
I hope this isn't an april fools joke. Please if this isn't a joke zbrown follow up. You could be the pioneer of a small revolution.
He could bring it to the Revolution and prove it's for real ;)

POKINATCHA 04-02-04 01:35 PM

Hmm. Anybody want to try low-comp rotors and twin charging with a big-ass turbo?

zbrown 04-02-04 01:39 PM

I still have stock injectors and pump. I have a a/f gauge and so i can keep an eye on it(it no wide band i know) Ionly have my fuel levels turned upslightly like three notches past neautral and my gauge reads perfectly where i want it. I have not had one ping and i am running89 octane. I am going to have it dyno tuned shortly, Ill wire the vdi open once and see how it goes. I cant wait to get my blow off valve so that i get the sound that i have always wanted too, I should have that on by next friday

arch8300 04-02-04 01:56 PM

where did you get the idler pully from?? and hoses? and finally the afr guage(looks to be a pep boys one i think)

hIGGI 04-02-04 02:10 PM

Impressive ! :D

ddub 04-02-04 02:41 PM

Damn.... Just... Damn...

Make and kit, atkins will never sell their s/c with pricing like yours :p:

Mx6-Rx7 Addict 04-02-04 02:51 PM

What are you doing as far as retarding timing under boost? Also, where did you get the bypass valve, and the idler pulley??


Thanks,
Justin

djalterego 04-02-04 02:55 PM


I cant wait to get my blow off valve so that i get the sound that i have always wanted too, I should have that on by next friday
Correct me if I'm wrong but I thought blow off valves were for turbo cars. Superchargers don't suffer from backpressure issues that turbos do because the pressure is metered by the engine speed.

My friend is about to revitalize his old RX7 to start racing it in local SCCA races. He pointed me to this thread. I used to own an 87 turbo myself and miss my rotary rocket!

DEZERTE 04-02-04 02:55 PM

seriously, not to give you any ides, but i would gladly pay money for a step by step writeup of this. GLADLY. ill do this if thats what it comes down to :D nice work man, thats so insane.

knightryder83 04-02-04 03:01 PM

wow dude... very impressive


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