All of this turbo talk? whats the highest HP NA Rensis?
08-11-2008 | 01:40 AM
#26
I've only gotten them up to 225, +/- 3.
That is with the MS/AEM intake, custom header, exhaust and the AccessPORT.
There might be some that are higher, but that is my best "consistent" number (meaning, it hit more than once on the same motor at different dynos and on different days).
That is with the MS/AEM intake, custom header, exhaust and the AccessPORT.
There might be some that are higher, but that is my best "consistent" number (meaning, it hit more than once on the same motor at different dynos and on different days).
08-11-2008 | 02:04 AM
#27
08-11-2008 | 07:41 AM
#32
N/A power on rx8
So.. without getting shot down for not doing a good search,--- How many and how much more power gain in doing porting-- opening up the std ports, and adding a bridge port??.
Some one in the rx7 forum (a few years ago) removed a Lot of metal (meat) off the sides of the rotor--so that the ports were opening sooner, and closeing later, has this been tryed on the rx8??
Didn't Scoot get something like 700 + ps out of a combo port (both side and P.Ports) on a Batman?? has anyone try that??
Some one in the rx7 forum (a few years ago) removed a Lot of metal (meat) off the sides of the rotor--so that the ports were opening sooner, and closeing later, has this been tryed on the rx8??
Didn't Scoot get something like 700 + ps out of a combo port (both side and P.Ports) on a Batman?? has anyone try that??
08-11-2008 | 08:27 AM
#36
beve lrotors
[QUOTE=rx8 man;2591478]So.. without getting shot down for not doing a good search,--- How many and how much more power gain in doing porting-- opening up the std ports, and adding a bridge port??.
Some one in the rx7 forum (a few years ago) removed a Lot of metal (meat) off the sides of the rotor--so that the ports were opening sooner, and closeing later, has this been tryed on the rx8??
Didn't Scoot get something like 700 + ps out of a combo port (both side and P.Ports) on a Batman?? has anyone try that??[/QUOTE
Just been looking on rx7 forum, found the posts by the guy, most of the pics are gone, bar a few.
Some one in the rx7 forum (a few years ago) removed a Lot of metal (meat) off the sides of the rotor--so that the ports were opening sooner, and closeing later, has this been tryed on the rx8??
Didn't Scoot get something like 700 + ps out of a combo port (both side and P.Ports) on a Batman?? has anyone try that??[/QUOTE
Just been looking on rx7 forum, found the posts by the guy, most of the pics are gone, bar a few.
Last edited by rx8 man; 10-18-2011 at 04:33 PM.
08-11-2008 | 02:22 PM
#37
I would agree as real world performance value is really the big picture we are interested in, though since I am pushing an N/A setup and my nitrous is 6 months (or longer) out...this topic is of interest to me.
At least with regards to the accessport, there hasn't been any attempts to mess with timing. I'm looking to get some dyno time as soon as the weather here in Phoenix cools down.
I would really like to see 220whp N/A with intake, full exhaust, and ignition coil upgrades. I have smaller stuff like the agency power pulley and lightweight
alternator and water pump pulleys as well.
Anyway, it's all talk at this point but once I have some hard numbers I'll be eager to share them.
At least with regards to the accessport, there hasn't been any attempts to mess with timing. I'm looking to get some dyno time as soon as the weather here in Phoenix cools down.
I would really like to see 220whp N/A with intake, full exhaust, and ignition coil upgrades. I have smaller stuff like the agency power pulley and lightweight
alternator and water pump pulleys as well.Anyway, it's all talk at this point but once I have some hard numbers I'll be eager to share them.
Either way, I want to be at the dyno next time! No more secret dyno meets!
08-12-2008 | 05:39 AM
#38
bevel rotors
One of the guys on rx7 club, who beveled his rotors got back to me, here are the pics he sent to me.
Could this type of thing work on the rx8 13b?
Thanks for the info and pics justin
Could this type of thing work on the rx8 13b?
Thanks for the info and pics justin
Last edited by rx8 man; 10-18-2011 at 04:33 PM.
08-12-2008 | 05:44 AM
#39
3-wheeler
Joined: Dec 2005
Posts: 2,734
Likes: 0
From: Phoenix
I think you could get there, Todd, it will just require a lot of time and money. You may be able to go higher (as shown by my math) if you do porting and can increase the effective volumetric efficiency.
Either way, I want to be at the dyno next time! No more secret dyno meets!
Either way, I want to be at the dyno next time! No more secret dyno meets!
I imagine my best would be with an intake/headers/exhaust combo with a lightweight flywheel setup. Add some tuning and an ignition upgrade to that mix and that would be about it.
08-12-2008 | 06:00 AM
#40
For max power, one of the incremental steps is a good premix.
Racing Beat dyno'ed 4 h.p. with a 75:1 ratio.......
Quote - While undertaking development work on the RX-8 Renesis engine for SCCA T2/T3 use, we decided to introduce extra oil into the fuel to monitor the effect. To our surprise, this additional oil increased power! Further dyno testing found that by adding 10 oz. of Royal Purple 2-Stroke Oil to 6 gallons of fuel, we gained an average of 1.7 HP from 2000-9000 RPM, along with an increase in peak power of 4 HP. We validated this increase by changing back to a “non-oiled” fuel - and the power returned to the previous level. Later, we tried the same test with another brand of synthetic oil with nearly the same results.
For racing applications, the addition of a high quality synthetic oil increases power and most certainly decreases wear. The only negatives are the cost of the oil and an increase in the tendency to foul the spark plugs.
S
Racing Beat dyno'ed 4 h.p. with a 75:1 ratio.......
Quote - While undertaking development work on the RX-8 Renesis engine for SCCA T2/T3 use, we decided to introduce extra oil into the fuel to monitor the effect. To our surprise, this additional oil increased power! Further dyno testing found that by adding 10 oz. of Royal Purple 2-Stroke Oil to 6 gallons of fuel, we gained an average of 1.7 HP from 2000-9000 RPM, along with an increase in peak power of 4 HP. We validated this increase by changing back to a “non-oiled” fuel - and the power returned to the previous level. Later, we tried the same test with another brand of synthetic oil with nearly the same results.
For racing applications, the addition of a high quality synthetic oil increases power and most certainly decreases wear. The only negatives are the cost of the oil and an increase in the tendency to foul the spark plugs.
S
08-12-2008 | 08:30 AM
#41
pre mixing
Cheers Stealth TL, I use to pre-mix with the 20b, but that was a case of having to, from what you have posted in the above text, you have made me thinkiabout looking into pre-mixing again.
08-12-2008 | 02:20 PM
#42
Thread Starter
Registered User
Joined: Jul 2008
Posts: 7
Likes: 0
to me.. having a powerfull NA rotary is more bling than a turbo'd RX8..
Turbo charged cars come with their own issues that alot of N/A people dont come across.
Boost creep
Turbo lag
Always being weary of the A/F ratio
Turbo Cool down after every drive
More things that can go wrong
Heat Soak
Just my opinion of course.
Turbo charged cars come with their own issues that alot of N/A people dont come across.
Boost creep
Turbo lag
Always being weary of the A/F ratio
Turbo Cool down after every drive
More things that can go wrong
Heat Soak
Just my opinion of course.
08-12-2008 | 06:45 PM
#47
Power!!
Joined: Feb 2004
Posts: 4,412
Likes: 3
From: Sunny See attle
Speedsource dyno'd 260hp at the crank on their ST class Renesis race engines. I think that's probably the number we should be shooting at without serious internal design changes.
Although it would be interesting to have some of the RX7 folks take a look at our Renesis rotors and see what they think.
Although it would be interesting to have some of the RX7 folks take a look at our Renesis rotors and see what they think.