My RX7SP build up

[RICE RACING]

Originally Posted by FC3S Murray

Nice video man! So if my math is right you are around 410rwhp correct?
That thing IS the definition of the rotary rocket

Glad to see you have finally beared fruit after all your hard work. I will agree that if your research is not 100% you wlll see a higher failure rate in the rotary then in conventional piston reciprocating engines.

That was the exact reason why my 13BT destroyed itself. I should have spent more time researching, I went farther then most '"average" rotary gearheads in regards to build precision, thermal control/scavenging and knock deterrents but not quite the 100% distance. I do hope in the future when my Family life slows down and my free time comes back to be involved again in a turbo rotary build with water injection.

For now my LS1 swap will have to satisfy my desire for a high power reliable engine that doesn't need as much attention.

Anyway, great job on the FD man. Very impressive craftsmanship. Enjoy it!!

Thanks very much.

On the power side its always an interesting debate/comparison. Mine is my own measure based on pure physics and engineering, I can't comment for others which vary depending on what dyno type people use. All I will say on the topic is my car accelerates faster and harder from 100kmh to 200kmh that some peoples RX7's that weight 120kg less and make (435rwhp as measured on a dyno dynamics machine!). **** Here is the link to an apparent 500+S-BHP (435rwhp Dyno Dynamics RX7 of 1180kg as run!) **** http://www.rx7club.com/showthread.php?t=631485&page=5 ........... you see why I value these toilet paper prints outs so highly 8.3++ seconds to my 7.53 seconds is an eternity.

(Below: stolen from gay shit hole club)
Just got back from Re-Worx !
Great job Geff and Max ! well done.

We mapped the car on E85
1600 and 850cc injectors are not enough with a base fuel pressure of 4.1BAR
We mapped at 0.9 Bar turbo pressure

all temps are just fine.. no knock no nothing
qoute from Geff: This engine likes running LEAN

432.2HP at the wheels at 0.9 BAR

flywheel


http://www.youtube.com/watch?v=kvcxX...layer_embedded 100kmh to 200kmh in 8.5 seconds!
*see what I mean* full throttle, full boost (actually higher than on dyno) 120kg less weight than me. And optimistic wheel speed sensors so in actual fact its probably slower than this indicated speed.

My long held experience after using almost every type of rolling road dyno over almost 2 decades is the vast majority of them are bullshit (over optimistic). This is why I bought my VBOX and developed my own power calculations as I know I can trust them and they do measure up to other cars in reality (production supercars).

There was a classic case of this on Motortrend a while back testing a R35GTR on a dynojet (using a guessing factor to estimate engine power @ 507bhp) then they took it to a real dyno that could calculate coast down power and actual wheel power (390awhp) and they worked out 485bhp V's factory spec of 480bhp. I have been lucky enough to work with both engine dyno and dynapack chassis dyno as a full time job at a University developing a FSAE power train, and I also got to exercise my development of my own power measure based on in vehicle tests so pretty much have seen it all and the variations you get between them.

My most important thing these days is spread of power (not just the peak), bit like your V8 conversion, its no point having a metric shit load of top end power and then never being able to translate that into any type of vehicle speed. The 100kmh to 200kmh test is graphic illustration of this, separates the dyno sheet racers from the people who can actually make a fast and reliable rotary

Over on the fag forum there was a bloke who listed up data logs of his ~1100kg RX7 that makes 435rwhp (dyno dynamics) on T04Z street port on E85 fuel (gutted open race exhaust) and on his video and data logging its doing 100kmh to 200kmh (off optimistic wheel speed sensors too!) in 8.3+ seconds.

I am very happy with my car and love the package nice that people here appreciate it as well, happy to share the information with enthusiasts who can appreciate the level of work and dedication it takes to make and prove beyond any doubt how fast a true street rotary can be

[RICE RACING]

I have been into rotaries since 1992 (bought my first RX7) and in all that time I can say I have not till now felt content with a car and its set up. After taking the beast out for a drive now I cant do the typed word justice in trying to express how fucking awesome it is to have a quiet nice to drive rotary, that behaves beautifully, drives nice, and is fuel efficient and able to be filled up anywhere and driven over 900km on a single tank of fuel It's a top long distance touring machine, something you just don't seen anymore with poofter fueled (E85 shitbox's) and rampant excuse machines that never do anything or go anywhere, except on tow trucks or trailers to the pusher (I mean workshop) for a undercover rebuild between BS dyno sheet postings or $10 plastic trophy battles of glory

It's not the most powerful car I have owned, nor by any stretch the fastest I have been tuned or developed for customers, but its by far the best all round package. It's smooth as silk, and one brief step of the pedal away its an animal all in one set up, the video's just don't do it justice as to how the nose lifts when you stand on the throttle in 3rd gear and at such low rpm......... and the sweeeeeeeet rotary noise through the SMB exhaust is sex.

Anyone who does not get to feel the rotary enjoyment all I can tell you is that if you work at it (never give up) and put in half as much work as I have you too can feel the love

[RICE RACING]

No you see why I have very little respect for common "chassis dyno's" FFS the Dyno Homo Dynamics is meant to read much lower than a Dynojet! and it reads a shit load lower than a Dynapack, and I say and can prove that the figures coming of a Dyno Homo Dynamics are totally FICTIONAL! not represent by any form of reality!

My real power measure is on average 15% to 18% lower than the Aussie DD!!! but its REAL POWER!! not made up bullshit with all kinds of hidden factors in the calculations!!!! and it matches REALITY and other cars from real manufacturers and also basics to do with fuel usage, Volutmetric efficiency, thermal efficiency, and vehicle performance. My RX7 only has around 480bhp to 490bhp at my estimate at the current setting, that is what the engineering says......... not a worthless dyno sheet from some doctored estimating guessing machine.

It's no wonder NONE of the cars who sprout of dyno sheet figures can give matching acceleration proof compared to "real supercars" say like a Ferrari F40 that weighs in at 1400kg and only uses a ~480bhp engine power form of propulsion : smash:

Dyno Sheets!

I dedicated a whole thread to it here > http://www.ausrotary.com/viewtopic.p...it=kerb+weight and typically only old school people who have allot of experience understand the reality of what we face in the modern HYPE world

[diabolical1]

Originally Posted by RICE RACING

... I can't do the typed word justice in trying to express how fucking awesome it is to have a quiet nice to drive rotary, that behaves beautifully, drives nice, and is fuel efficient and able to be filled up anywhere and driven over 900km on a single tank of fuel ...

well done, man.

what you said there is what matters! setting all the commentaries, opinions, bashing and business rhetoric aside, THIS is what it's all about ... enjoyment. it sounds like you've achieved it and to me, that's worth more than any other claim one can make.

[RICE RACING]

Originally Posted by diabolical1

well done, man.

what you said there is what matters! setting all the commentaries, opinions, bashing and business rhetoric aside, THIS is what it's all about ... enjoyment. it sounds like you've achieved it and to me, that's worth more than any other claim one can make.

Well said

Have had a really great time over the holidays, just today she has had a chance to rest (back to work tomorrow ) covered around 2000km, today was fun slotting her back into 3rd and passing cars revs flaring and wheel spinning at rocketing to 100mph, its a real beast, enough power on tap and its there any time, no excuses

Last week I went to go see a good friend of mine (150km round trip) *he is a local legend drag racer* we got out there, and he asked "can you take me for a drive?" now worries we went for a run... he was flat out impressed, said it accelerates harder than his drag car and best thing is its quiet and drives like stock. < Valued opinions from old boys like this who I admire mean more to me than most opinions as Its objective and holds value (coming from a person of note, an achiever not an internet dreamer!@), especially coming from a piston turbo man too As I said to him, "the thing that is important to me is to drive wherever I want and go for a run like we did no excuses", no qualifications or preparation, no trailers, no tow trucks!!, no BDC style blow ups.

A road going rotary should be just that, a thing you can get in and drive it to your hearts content and enjoy all of the power you have any time any place, I love my car