RX7 fd Twin Charged
 

My twin charged rx7 fd project.

Turbonetics t66
Eaton m62
Apexi power fc
hks twin power
Bridge ported
850cc 2200cc injectors
water/meth. injection
4"down pipe 3.5 exhaust
M62 is electrically controlled. trothle position and rpm switch it on and under 4000rpm off
Volvo penta valve change sharger.
etc.

Old power without twin charged m62 517ps
New dyno results coming soon.

Yesterday is first start and it looks work properly. Low rpm boost is abaut 0.6 bar (9psi)
View image: RX7 Twin
http://postimage.org/image/ae3n0xf17/

http://postimage.org/image/o1wug7sb7/

*paging twinchargedrx7:lol:*

What the hell. Now I need to change mine up again haha.

Nice job, once i finish tuning we'll have to compare.

One question though, why do you have the supercharger coming on at 4k rpm? The entire reason i made mine was so i could build boost at 2k rpm

And how is your piping run? Mine goes turbo, supercharger, intercooler, throttle body, engine. I can't quite follow yours from the pictures.

Why such a small blower?

looks like its not compound. diverter varies intake between turbo and the eaton. sc up to 4k then switch to turbo? wonder how the shift feels?

second look maybe it is compound and the eaton blows through the turbo till 4k then turbo draws its own air? wtb more pics please.

supercharger coming on depending throttle position. If throttle position is over 20% supercharger coming on.
supercharger coming off over 4000rpm. No more heat and power lose high rpm.

Piping. supercharger filtter -> volvo penta non return valve -> turbocharger -> cooler -> throttle pody
turbocharger have own filter before volvo penta 3-way valve.

Supercharger rpm is fit engine rpm engine 1500-4000rpm Supercharger boost 9psi. When turbocharger flow more than supercharger volvo penta non return valve opened and relay control Supercharger off.


http://s23.postimage.org/nf53qj86z/RX7_charge.jpg

Yes there is a language barrier.i´m sorry.

motor is running but somethin details is unfinished.
And there Finland is lot of snow, i cant test my car properly.
I can send some video next week.
And dyno results is coming next month.

Picture last summer after speedparty (one mile run)
http://s23.postimage.org/brmmnf77v/RX7_ulko.jpg
http://s22.postimage.org/cryitpqgx/IMAG0133.jpg

Engine
http://s11.postimage.org/9veuq0lmr/IMAG0591_1.jpg

haha, same C-west bumper as me too

Those are Mazdaspeed MS02's

Hi,

Some video.

Interior
rx7sisa - YouTube

Engine
rx7kone - YouTube

Drive
rx7ajo - YouTube

Epic. Any porting or mods to the M62?

Thanks.

M62 is original, do you know some good mods what i can do m62?

I'm not very knowledgeable on the M62 but I do know there are people who "port" their M112s for cobras. Basically it involves enlarging the Triangle output on the bottom lengthwise. This supposedly allows you to have a higher rate of flow through the blower. However there is the possibility that the actual pulses from the blower rotors will be more dramatic. as far as I can tell nobody has down real scientific research on the subject.

Last update
Electric power steering pump added.
pump is for citroen saxo and work fine.If you see video you can see red wires they are Electric power steering pump wire.

Original rx7 fd power steering pump pressure abaut 1100psi -> 75 bar
Citroen saxo electric power steering pump pressure abaut 1160psi -> 80bar

wrong video.this is right.

That blower sounds so cool. haha

Incredible work, please post more videos!!!

Just found this. Love it. Did you ever get it dyno'd?

I'm thinking of doing a twin charge setup but using a centrifugal blower in a compound setup

Do it. If you've deleted the ac and power steering, it should be easy enough to run a vortec, paxton, rotrex, or whatever easily enough with a custom bracket.

more videos driving please! i am debating doing this to my FC. i just switched over from running just a large street port to adding a semi peripheral port and i have a s475 on the way. was thinking of throwing a supercharger on to help that boost lag disappear

That blower sounds just like the one on my Acura TL. I love the sound of a s/c, add a turbo its pure heaven!!!