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Old 04-17-2012, 07:16 PM   #1
Oyvindjs
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Default 800+rwhp 13B PP

turn up sound, there is a jet inc..!
Check out that hp curve and range...! I-N-S-A-N-E!!!

http://www.youtube.com/watch?v=zvg19...layer_embedded







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Old 04-17-2012, 07:58 PM   #2
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Holy crap!
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Old 04-17-2012, 08:20 PM   #3
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350kpa boost, another 30kpa over what I ran two days ago in the logs I posted up...... I bet you its not on pump petrol though lol.
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Old 04-18-2012, 05:12 AM   #4
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nah, its some Q-16 shit, not pump.
Still, the area under the curve is very nice!
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Old 04-18-2012, 05:50 AM   #5
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Actually, the video label says semi-PP, so it's not a full PP...

Am I the only one disappointed with the *torque* graph?
Although the X-axis is not labelled in RPM's, if we assume 4.10 rear end, standard gearing on a stock FD trans...looks like 5th gear pull?

Assuming tires are close to stock rolling diameter...
2,000 = 50mph
3,000 = 75mph
4,000 = 100mph
(Wow, works out nice for 25mph per 1,000RPM's?)
5,000 = 125mph
6,000 = 150mph
7,000 = 175mph
8,000 = 200mph

Assuming + or - 500RPM's due to different tire size, etc...
Peak torque ~4,800RPM?
Redline ~7,100RPM?

Torque drop from peak torque to redline just about 100 lb-ft???
Something doesn't jive...
With the semi-PP, I would think the peak torque would be a lot higher?
Also, the torque drop wouldn't be as drastic with the semi-PP?
20% drop in torque over 30% of it's rev range (actually more like 50% over it's usable rev range) is a lot to me...

Am I way off base here???


-Ted
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Old 04-18-2012, 04:15 PM   #6
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Semi PP motors *street applications* don't make hi rpm power really, look at the dyno curve and peak power of the old Scoot FD (710ps @ engine @ 7100rpm @ 29psi boost).

These "curves can be mis leading.

If you go on my web site and look at the Capella that did 600rwhp on our Aussie dyno @ 24psi (LOL which probably equals 750rwhp on your types you use LOL) you will see a similar FAT and FLAT power curve for over 100kmh wheels speed.

On the road its a total horses cock as shown up by a 90-140kmh 4700rpm to 8000rpm (inc wheel slip) 3rd gear acceleration test. The proof is in the acceleration times, NOT IN THE WORTHLESS DYNO SHEETS.
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Old 04-18-2012, 04:17 PM   #7
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These motors make NOTHING below 5000rpm to 5500rpm, and for the street that is a ****.
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Old 04-18-2012, 04:23 PM   #8
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http://www.youtube.com/watch?v=Cqo5u...eature=related

This is a VERY well known car that has done a few VBOX runs.

Low boost run at race track

http://www.youtube.com/watch?v=rQ3u5...hannel&list=UL

No Peripheral port or horse cock inlet manifolds needed and higher power on lower boost LOL
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Old 04-19-2012, 10:33 AM   #9
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Just curious, what do you consider high rpm and acceptable torque output at 5-5.5k rpm?




Quote:
Originally Posted by RICE RACING View Post
Semi PP motors *street applications* don't make hi rpm power really, look at the dyno curve and peak power of the old Scoot FD (710ps @ engine @ 7100rpm @ 29psi boost).

These "curves can be mis leading.

If you go on my web site and look at the Capella that did 600rwhp on our Aussie dyno @ 24psi (LOL which probably equals 750rwhp on your types you use LOL) you will see a similar FAT and FLAT power curve for over 100kmh wheels speed.

On the road its a total horses cock as shown up by a 90-140kmh 4700rpm to 8000rpm (inc wheel slip) 3rd gear acceleration test. The proof is in the acceleration times, NOT IN THE WORTHLESS DYNO SHEETS.
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Old 04-19-2012, 01:00 PM   #10
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Quote:
Originally Posted by RETed View Post
Actually, the video label says semi-PP, so it's not a full PP...

Am I the only one disappointed with the *torque* graph?
Although the X-axis is not labelled in RPM's, if we assume 4.10 rear end, standard gearing on a stock FD trans...looks like 5th gear pull?

Assuming tires are close to stock rolling diameter...
2,000 = 50mph
3,000 = 75mph
4,000 = 100mph
(Wow, works out nice for 25mph per 1,000RPM's?)
5,000 = 125mph
6,000 = 150mph
7,000 = 175mph
8,000 = 200mph

Assuming + or - 500RPM's due to different tire size, etc...
Peak torque ~4,800RPM?
Redline ~7,100RPM?

Torque drop from peak torque to redline just about 100 lb-ft???
Something doesn't jive...
With the semi-PP, I would think the peak torque would be a lot higher?
Also, the torque drop wouldn't be as drastic with the semi-PP?
20% drop in torque over 30% of it's rev range (actually more like 50% over it's usable rev range) is a lot to me...

Am I way off base here???


-Ted



Hey Ted,

The torque curve looks strange because of two things.

-Tire/clutch slippage when the vehicle comes into boost

-Boost dropping off at higher rpms.

Dyno runs were done in 4th gear using a stock FD trans. Tire circumference is about 79"

The graph in the middle shows calculated gear ratio, this line is fairly straight if there is no slippage. Peak torque output is actually in the 530-560 range.

The bottom graph is the boost, near the end of the run the boost is only about 28psi. The wastegate being a 66mm unit with a 12-13 psi spring has a lot of surface area, and once you get up in the higher revs/power output the exhaust back pressure starts to go a little over 1:1 and pushes the valve open, limiting the boost.

If you were to calculate the average acceleration rate (now that you know the engine rpm) I don't think you'd be too disappointed
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Old 04-19-2012, 01:30 PM   #11
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double post.

Last edited by forcefed7; 04-19-2012 at 01:32 PM.. Reason: double post
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Old 04-19-2012, 03:59 PM   #12
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Hey PFS man, do up a video of how that car accelerates I'd love to see it.

Do you have a Race Logic VOBX or access to one? when you do you can post it up in this thread on fast fd http://www.rotarycarclub.com/rotary_...ad.php?t=14704

We need MORE real cars that work and are quick. Your car should easily out accelerate a Buggati Veyron with that much power and low weight.
100kmh to 200kmh is the std, under 5 seconds and you will be the new super hero in the rotary world.
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Old 04-19-2012, 04:14 PM   #13
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Quote:
Originally Posted by forcefed7 View Post
Hey Ted,

The torque curve looks strange because of two things.

-Tire/clutch slippage when the vehicle comes into boost

-Boost dropping off at higher rpms.

Dyno runs were done in 4th gear using a stock FD trans. Tire circumference is about 79"

The graph in the middle shows calculated gear ratio, this line is fairly straight if there is no slippage. Peak torque output is actually in the 530-560 range.

The bottom graph is the boost, near the end of the run the boost is only about 28psi. The wastegate being a 66mm unit with a 12-13 psi spring has a lot of surface area, and once you get up in the higher revs/power output the exhaust back pressure starts to go a little over 1:1 and pushes the valve open, limiting the boost.

If you were to calculate the average acceleration rate (now that you know the engine rpm) I don't think you'd be too disappointed
On the road in the real world with quick transient conditions that thing would not develop full boost till 6k rpm or more in 2nd or 3rd gears especially, so far as 4k to 5k forget it.

It's a really nice set up for high power dyno competitions though

If you send me the vehicle run weight along with a VBOX .vbo or .dbn file, I'll see what power it makes on the street when you do an acceleration test with it, with that gearing though to do 100kmh to 200kmh you will probably be using 2nd and 3rd gears at a guess, rather than 3rd and 4th like we do.
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Old 04-19-2012, 06:11 PM   #14
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Quote:
Originally Posted by RICE RACING View Post
On the road in the real world with quick transient conditions that thing would not develop full boost till 6k rpm or more in 2nd or 3rd gears especially, so far as 4k to 5k forget it.

It's a really nice set up for high power dyno competitions though

If you send me the vehicle run weight along with a VBOX .vbo or .dbn file, I'll see what power it makes on the street when you do an acceleration test with it, with that gearing though to do 100kmh to 200kmh you will probably be using 2nd and 3rd gears at a guess, rather than 3rd and 4th like we do.
It's not as "laggy" as you might think, but even if it didn't make full boost until 6k it still has a usable rev range of another 4800rpm. Assuming grip is equal, 2nd and 3rd gear will higher acceleration rates. Unfortunately I don't own a VBOX to be able to send you a log file.

You never commented on what you consider to be acceptable torque output at 5-5.5k and you term "high engine rpm"
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Old 04-19-2012, 07:09 PM   #15
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Race Logic Drift Box or Performance Box are very cheap entry point to do some real world testing, you should buy one and test that car for us
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