rotarys and boost
Senior Member
Joined: Oct 2001
Posts: 10,906
From: Peoria, AZ
Originally Posted by venomous' date='Sep 8 2002, 07:36 PM
thanks guys, answers a few q's 
ok now i understand about why the only major mods for the extreme hp rotarys are a beefy eccentric shaft and some good seals.
on a interesting note just today i saw a triple rotor rx7 race car in a workshop with 480hp / 300lbft naturally aspirated.... guy said comp was 9.44 to 1 and would run on any pump gas. he showed me a dyno chart which had flat torque from 4000-8000rpm and could be street driven if they wanted.
on a interesting note just today i saw a triple rotor rx7 race car in a workshop with 480hp / 300lbft naturally aspirated.... guy said comp was 9.44 to 1 and would run on any pump gas. he showed me a dyno chart which had flat torque from 4000-8000rpm and could be street driven if they wanted.
omghi2u
Joined: Mar 2002
Posts: 7,259
From: Los Angeles, CA
Originally Posted by venomous' date='Sep 8 2002, 06:36 PM
thanks guys, answers a few q's ok now i understand about why the only major mods for the extreme hp rotarys are a beefy eccentric shaft and some good seals.
on a interesting note just today i saw a triple rotor rx7 race car in a workshop with 480hp / 300lbft naturally aspirated.... guy said comp was 9.44 to 1 and would run on any pump gas. he showed me a dyno chart which had flat torque from 4000-8000rpm and could be street driven if they wanted.
on a interesting note just today i saw a triple rotor rx7 race car in a workshop with 480hp / 300lbft naturally aspirated.... guy said comp was 9.44 to 1 and would run on any pump gas. he showed me a dyno chart which had flat torque from 4000-8000rpm and could be street driven if they wanted.
Thread Starter
Junior Member
Joined: Sep 2002
Posts: 8
100% n/a. i'm still drooling, i swear
power was upper 9000rpm range don't remember the exact rpm. 11000rpm was the igniton cut-out but there was no redline marker on the tach.
torque sounds like what a 4 litre equivelent piston engine would make in road tune so its not that fantistic (probably cuz of the normal octane). but its just the mad revs.
Um *thinks* i believe he said peripheral ported, they retained some port opening mechanism and a mazdaspeed variable trumpets kit they use in works n/a cars.
power was upper 9000rpm range don't remember the exact rpm. 11000rpm was the igniton cut-out but there was no redline marker on the tach.
torque sounds like what a 4 litre equivelent piston engine would make in road tune so its not that fantistic (probably cuz of the normal octane). but its just the mad revs.
Um *thinks* i believe he said peripheral ported, they retained some port opening mechanism and a mazdaspeed variable trumpets kit they use in works n/a cars.
Senior Member
Joined: Feb 2002
Posts: 1,381
From: Close enough to annoy you.
Originally Posted by wankel_dreams' date='Sep 9 2002, 02:29 AM
[quote name='Rotarydragon' date='Sep 8 2002, 11:40 AM']I've never heard of anyone breaking a rotor, ever. 13BAce?
Mazdatrix overboost[/quote]
Ouch!
Senior Member
Joined: May 2002
Posts: 22,465
From: California
Originally Posted by Rotarydragon' date='Sep 8 2002, 08:40 AM
I've never heard of anyone breaking a rotor, ever. 13BAce?
400hp and 300lbsft on a peripheral port 20b is about right, it must pull really hard, we'll see what the stock 20b does soon. it gets dynoed on the 21st.
mike
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