Greddy Turbo Installed - Details Inside!!!!
#1001
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Originally Posted by Richard Paul
RG, I'm a little disappointed with the volume of you post, need some more mass.
Maybe you can explain it better then my little lab experiments did. But I can't see how, that is as plain as I can show it. I think these are smart guys saying the same thing, no?
In the famous words of Paul Newman "what we have here is a failure to comunicate"
Maybe you can explain it better then my little lab experiments did. But I can't see how, that is as plain as I can show it. I think these are smart guys saying the same thing, no?
In the famous words of Paul Newman "what we have here is a failure to comunicate"
#1002
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Originally Posted by Richard Paul
Where the hell are you Fred, got a girl over there or something?
I've tried to explain the volume/airflow/pressure/efficiency topic over and over again apparently to no avail and I think I'm at the point where I'm done with it.
#1005
Son what is your Alibi?
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Originally Posted by MazdaManiac
No DSC. No limp mode.
The myth about dynoing the the RX-8 is busted.
The myth about dynoing the the RX-8 is busted.
Far as it putting 170whp stock on the dyno and in real-life conditions it's not right. If it was doing 170whp with the volume and speed of real air flowing into the intake in-addition to some other variables there's no way you would have stock "fully loaded 3180+lbs" RX-8's running 14.5 and lower, and i'll say this again its just a number, useful as a comparative tuning tool not tell you what the car is acutally making.
Last edited by PoLaK; 01-22-2005 at 11:41 AM.
#1007
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Originally Posted by Jason
Great numbers. By looking at your graph your A/F at peak power is perfect. There is no room for correction there. By smoothing the A/F you will smooth out the graph but its not going to change your peak power. For every pound of boost you will gain 10-15 RWHP, so its possilbe to hit 270 RWHP by upping the boost to 9lbs and tuning the A/F. I would not touch the timing unless you have an EGT gauge or you risk blowing the motor.
Jason
Jason
Thanks Jason, appreciate the information. The E-manage that comes with the GReddy kit doesn't ouch timing at all. It uses stock timing... That's definately something I am going to look into in the next few weeks. Just need this weather to break.. too much damn snow!!
**EDIT** Given that most cars have a 17% loss through the drivetrain (like Jeff Mentioned) I'm getting about 290 at the crank. **EDIT**
Last edited by philodox; 01-22-2005 at 01:02 PM.
#1008
Originally Posted by RX-Nut
I understand that boost does not necessarily equate to HP..
I was trying to ask if you believe if there is a some max HP that the Renesis can provide. It seems easier for others engine to double their HP output with a turbo addon whereas the Renesis looks like its struggling to get more than half. In other words I guess the possible potential of the Renesis..
Now I dont even know if its struggling to meet less than half its normal HP, but it seems that way.
What are 350z owners getting by slapping on similar bolt ons? Other cars? Are they seeing 40-60hp gains, or are they seeing 100+ gains? I guess, again since I'm a turbonewb, what are average gains by bolt on turbos?
I was trying to ask if you believe if there is a some max HP that the Renesis can provide. It seems easier for others engine to double their HP output with a turbo addon whereas the Renesis looks like its struggling to get more than half. In other words I guess the possible potential of the Renesis..
Now I dont even know if its struggling to meet less than half its normal HP, but it seems that way.
What are 350z owners getting by slapping on similar bolt ons? Other cars? Are they seeing 40-60hp gains, or are they seeing 100+ gains? I guess, again since I'm a turbonewb, what are average gains by bolt on turbos?
Last edited by murix; 01-22-2005 at 01:21 PM.
#1009
Ex- member.
So you got 240.4rwhp with the turbo, a gain of 65.96rwhp coming from 7psi of boost.
Did you do any runs at 5psi (or whatever it is preset to)? I was wondering what the turbo kit hp gain was out of the box, without using the boost controller.
Did you do any runs at 5psi (or whatever it is preset to)? I was wondering what the turbo kit hp gain was out of the box, without using the boost controller.
#1010
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Originally Posted by adrian-1
So you got 240.4rwhp with the turbo, a gain of 65.96rwhp coming from 7psi of boost.
Did you do any runs at 5psi (or whatever it is preset to)? I was wondering what the turbo kit hp gain was out of the box, without using the boost controller.
Did you do any runs at 5psi (or whatever it is preset to)? I was wondering what the turbo kit hp gain was out of the box, without using the boost controller.
Apparently the car runs at 7psi until the higher RPM range then tapers off to 5psi. BUt I see 7psi all the way up to redline. Right now the boost controller is just limiting any boost spikes I may see. I have it set to exactly what psi I saw from the kit before the boost controller was a part of the equation. make sense?
#1011
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Originally Posted by PoLaK
...putting 170whp stock on the dyno and in real-life conditions it's not right. If it was doing 170whp with the volume and speed of real air flowing into the intake in-addition to some other variables there's no way you would have stock "fully loaded 3180+lbs" RX-8's running 14.5 and lower, and i'll say this again its just a number, useful as a comparative tuning tool not tell you what the car is acutally making.
#1012
Ex- member.
Originally Posted by philodox
Apparently the car runs at 7psi until the higher RPM range then tapers off to 5psi. BUt I see 7psi all the way up to redline. Right now the boost controller is just limiting any boost spikes I may see. I have it set to exactly what psi I saw from the kit before the boost controller was a part of the equation. make sense?
Got it.
You didn't increase the boost, so the turbo kit should give +65hp increase out-of-the-box.
#1013
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why doesn't anyone ever dyno their car in 5th gear?
Its the 1:1 drive ratio which should have the lowest drivetrain losses in the tranny plus you have much less acceleration so there is less inertial losses.
Its the 1:1 drive ratio which should have the lowest drivetrain losses in the tranny plus you have much less acceleration so there is less inertial losses.
#1014
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Originally Posted by pr0ber
why doesn't anyone ever dyno their car in 5th gear?
Its the 1:1 drive ratio which should have the lowest drivetrain losses in the tranny plus you have much less acceleration so there is less inertial losses.
Its the 1:1 drive ratio which should have the lowest drivetrain losses in the tranny plus you have much less acceleration so there is less inertial losses.
#1015
Stuck in a love triangle
Philodox your whp is around the same as a stock 350z. Luckilyyour car weighs almost 200lbs less so Im guessing your 0-60 isnow in the 5.2 - 5.5 second range and probably high 13s in the 1/4 mile. Notbad for a couple grand eh?
#1016
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Originally Posted by JeRKy 8 Owner
Philodox your whp is around the same as a stock 350z. Luckilyyour car weighs almost 200lbs less so Im guessing your 0-60 isnow in the 5.2 - 5.5 second range and probably high 13s in the 1/4 mile. Notbad for a couple grand eh?
#1017
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Originally Posted by philodox
because it's very stressfull on the engine and the higher the gear, the more prone to pre-ignition the car is while on a dyno.
#1018
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Originally Posted by MazdaManiac
Peak HP was 225 HP. I don't have a torque figure for the above-referenced reasons.
--Landon
#1019
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Originally Posted by pr0ber
how is that? the engine is still producing the same power, its only the rear wheels which are turning slower. The only downside is the dyno takes a bit longer to run (but also gives you better resolution, more power showing up, and more repeatable results) which shouldn't matter as long as your cooling system is up to power.
#1020
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Originally Posted by Landon_Starr
Probably a lot more work than most would want to worry about, but why don't you just calculate the torque? horsepower=(torque*rpm/5252) or something like that. A few simple mathematical transformations and you could have the torque formula. If you have the underlying data points to the graphs it should be easy enough.
--Landon
--Landon
![Smilie](https://www.rx8club.com/images/smilies/smile.gif)
Did anyone get his IP address? Ban him for his stupid post when you get a minute, moderators.
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#1021
RX8 and a Truk....
one aspect I feel is important to address - most ppl here are taking his 'old' peak hp number, and subtracting from his 'current' peak hp number, and proclaiming the difference as the amount of power he gained. Unless we see over-lapping dyno plots, it's hard to make that call.
It could be the case he's gained MORE than the 6xhp ppl are suggesting, at different points along the powerband. As an example, on my last car I gained 7peak HP by switching to a test pipe from a cat. However, the car gained 15-25hp and equal amounts of torque from 3000-5000 rpms. I'm betting the power under the curve may have made HUGE gains. : )
Any ability to find a scanner, Philo?
:D
[edit]Grammar...[/edit]
It could be the case he's gained MORE than the 6xhp ppl are suggesting, at different points along the powerband. As an example, on my last car I gained 7peak HP by switching to a test pipe from a cat. However, the car gained 15-25hp and equal amounts of torque from 3000-5000 rpms. I'm betting the power under the curve may have made HUGE gains. : )
Any ability to find a scanner, Philo?
:D
[edit]Grammar...[/edit]
Last edited by dmp; 01-22-2005 at 03:18 PM.
#1023
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I just looked at the old dyno sheet from my pre-turbo dyno runs. I would take a digi pic of it, but it's hard to tell the difference between the stock plots and the Canzoomer plots when it was installed on my 8. It's confusing me looking at it, so fudging a digi pic of it would be pointless.
However, I am eyeballing the plots and compating stock to turbo. With the turbo, I have approx 40hp more at 3000 RPM, 50hp more at 3500RPM compared to stock... then from 4000 RPM on up it's about 55-65hp more than stock.. So from what I see in the graphs, the extra HP comes really early.. around 3000RPM. That's when the turbo spools up which makes sense.
However, I am eyeballing the plots and compating stock to turbo. With the turbo, I have approx 40hp more at 3000 RPM, 50hp more at 3500RPM compared to stock... then from 4000 RPM on up it's about 55-65hp more than stock.. So from what I see in the graphs, the extra HP comes really early.. around 3000RPM. That's when the turbo spools up which makes sense.
#1024
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WOW, just watched live shots of your part of the world. 7F and falling. Man that'll make your intercooler work. Mighty thick air too. That thing should really run with chains on it. :D
Guess that's all a person can do is sit inside and look at old dyno sheets.
Damn I have to go out and work on a leaking lawn sprinkler valve now. :p
Get any offers for that ticket to Hawaii? Oh that's right the airports closed down. :D
Guess that's all a person can do is sit inside and look at old dyno sheets.
![Smilie](https://www.rx8club.com/images/smilies/smile.gif)
Damn I have to go out and work on a leaking lawn sprinkler valve now. :p
Get any offers for that ticket to Hawaii? Oh that's right the airports closed down. :D
Last edited by Richard Paul; 01-22-2005 at 03:31 PM.