Greddy Turbo Installed - Details Inside!!!!
#1051
Rangers Lead The Way!
Thread Starter
I'm not even going to bother anymore.. if you've never put a car on a dyno, you wouldn't know that stressing the engine at a higher gear has a very good chance of detonation... someone else want to take a stab at this?
Also, the dyno takes into account the gear you are in when it figures out whp.
Also, the dyno takes into account the gear you are in when it figures out whp.
#1052
Bummed, but bring on OU!
Originally Posted by pr0ber
FWIW, before reading this board the only time i've ever heard of people dynoing a car in anything other then the 1:1 drive gear is when they are doing quick a/f tuning runs and just using the results to compare against other runs done that way.
I don't know much about gear ratio vs. engine loading, but I've always read/been told that you dyno in a gear as close to 1:1 as you can as well.
FWIW
#1053
Shifty Bastard.
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Originally Posted by Nemesis8
Now that is an interesting product - Hymee you have a competitor...
http://www.auterraweb.com/index.html
http://www.auterraweb.com/index.html
#1054
Originally Posted by philodox
I'm not even going to bother anymore.. if you've never put a car on a dyno, you wouldn't know that stressing the engine at a higher gear has a very good chance of detonation... someone else want to take a stab at this?
Also, the dyno takes into account the gear you are in when it figures out whp.
Also, the dyno takes into account the gear you are in when it figures out whp.
As for dyno tune when I worked for PFS we would dyno tune to get it as close as possible but then hit the street for the last bit of tuning. It makes a little more on the street but nothing drastic.
#1055
1st 13 sec Mazda MP3
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Originally Posted by RotorManiac
Where did you get it from??
#1056
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Originally Posted by philodox
Wow.. that's a nifty tool.. Something I may look into. Does it take AFR too? Would be useful for tuning.
#1057
1st 13 sec Mazda MP3
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Originally Posted by pr0ber
umm no... you can only reach 100% load
#1058
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Originally Posted by Kooldino
I honestly forget whether it does AFR or not, since I have a WBO2. As far as I'm concerned, a NBO2 is only useful for N/A tuning.
Last edited by RX8-TX; 02-23-2005 at 10:51 AM.
#1059
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Originally Posted by Kooldino
I got mine new off of ebay and saved a few bucks. As far as I'm concerned, anyone doing serious power mods (on an OBD-II car) should have one.
what did you search under i trying to get one myself ???
#1060
thats right...the KING!
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Originally Posted by Kooldino
Not sure you'd gain much at such a low PSI.
Dunno what setup Jeff is running, but I'd guess around 240whp for Jon.
Dunno what setup Jeff is running, but I'd guess around 240whp for Jon.
#1061
thats right...the KING!
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so given the numbers on the dynos, the n-tercooler kit could bump up some more toward that 300rwhp number if advertizements are near truth-full. any one given thought to this and going to try it? i would like to see what that would do on top of the turbo kit
#1064
Rangers Lead The Way!
Thread Starter
Originally Posted by Richard Paul
OK Jon, At least let it be me to put you in the lead.
May TSi TSi Flies nest in your arm pits. :p :p
May TSi TSi Flies nest in your arm pits. :p :p
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#1066
Rangers Lead The Way!
Thread Starter
Well Guys.. rx8-tx just did me a favor and plotted the torque curve based on my whp and mph of my dyno chart. Here's the results for that
193.44ft-lbs @ 4643rpm was the max according to his calculations
190'ish torque was availible starting at about 3100rpm al the way up to about 7000rpm. So now you know what I meant when I said it had a bit more kick to it at launch.. no wonder I can go sideways in 1st-4th gears if I try
193.44ft-lbs @ 4643rpm was the max according to his calculations
190'ish torque was availible starting at about 3100rpm al the way up to about 7000rpm. So now you know what I meant when I said it had a bit more kick to it at launch.. no wonder I can go sideways in 1st-4th gears if I try
![EEK!](https://www.rx8club.com/images/smilies/eek.gif)
#1067
Son what is your Alibi?
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John your right about dynoing in 3rd/4th rather then 5th.
In addition to the extra load put on the engine and greater chance of pinging since you don't have the correct volume of air flowing at 100mph through the intake. I would seriously worry about oil temps doing consectutive runs in 5th gear, also the wheelspeed is so high (140+) that there is greater room for error on the acutal horse power figure, you can see this by how much spikier the graph of a 4th gear dyno is then a 3rd.
In addition to the extra load put on the engine and greater chance of pinging since you don't have the correct volume of air flowing at 100mph through the intake. I would seriously worry about oil temps doing consectutive runs in 5th gear, also the wheelspeed is so high (140+) that there is greater room for error on the acutal horse power figure, you can see this by how much spikier the graph of a 4th gear dyno is then a 3rd.
#1068
Rangers Lead The Way!
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Originally Posted by PoLaK
John your right about dynoing in 3rd/4th rather then 5th.
In addition to the extra load put on the engine and greater chance of pinging since you don't have the correct volume of air flowing at 100mph through the intake. I would seriously worry about oil temps doing consectutive runs in 5th gear, also the wheelspeed is so high (140+) that there is greater room for error on the acutal horse power figure, you can see this by how much spikier the graph of a 4th gear dyno is then a 3rd.
In addition to the extra load put on the engine and greater chance of pinging since you don't have the correct volume of air flowing at 100mph through the intake. I would seriously worry about oil temps doing consectutive runs in 5th gear, also the wheelspeed is so high (140+) that there is greater room for error on the acutal horse power figure, you can see this by how much spikier the graph of a 4th gear dyno is then a 3rd.
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#1069
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The load on the engine in fifth gear is tremendous and requires allot of air going through the radiators. Don't do it unless you like the smell of coolant!
The RPM pickup on Dynojets gets funky from dropping. A new pickup solves the problem for a while...
Nice HP gains! Thanks for sharing!
Vince
The RPM pickup on Dynojets gets funky from dropping. A new pickup solves the problem for a while...
Nice HP gains! Thanks for sharing!
Vince
#1070
I agree
I've always dyno'd in 3rd gear on a 5-sp car before!
I presume they are torque figures @ the wheels, if so, I find that very impressive....
The sooner they do a kit for the UK the better!!!!!!!!!!!
I've always dyno'd in 3rd gear on a 5-sp car before!
I presume they are torque figures @ the wheels, if so, I find that very impressive....
The sooner they do a kit for the UK the better!!!!!!!!!!!
#1071
RX8 and a Truk....
Originally Posted by RX3+5
The load on the engine in fifth gear is tremendous and requires allot of air going through the radiators. Don't do it unless you like the smell of coolant!
The RPM pickup on Dynojets gets funky from dropping. A new pickup solves the problem for a while...
Nice HP gains! Thanks for sharing!
Vince
The RPM pickup on Dynojets gets funky from dropping. A new pickup solves the problem for a while...
Nice HP gains! Thanks for sharing!
Vince
I wonder why the load on the car is so damaging to an RX8? Every other car i've owned has been dyno'd at 1:1 ratios...I think ppl are just afraid...if our 1:1 gear was named 'fourth' I doube there'd be any debate.
#1072
Bummed, but bring on OU!
Non Dyno related question: Did the kit come with injectors? I only ask, because the Re Amemiya kit (which is also a Greddy/Trust kit ) comes with 2 "main injectors". I'm not paying the $5k+ for the kit, but was just looking (since it's the only thing available for the 4port motor). Just curious if the 4 port has different injectors than the 6 port?
#1073
Banned
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Originally Posted by therm8
Non Dyno related question: Did the kit come with injectors? I only ask, because the Re Amemiya kit (which is also a Greddy/Trust kit ) comes with 2 "main injectors". I'm not paying the $5k+ for the kit, but was just looking (since it's the only thing available for the 4port motor). Just curious if the 4 port has different injectors than the 6 port?
The additional injectors in the Amemiya kit may be replacements for the secondaries.
#1075
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Originally Posted by PoLaK
John your right about dynoing in 3rd/4th rather then 5th.
In addition to the extra load put on the engine and greater chance of pinging since you don't have the correct volume of air flowing at 100mph through the intake. I would seriously worry about oil temps doing consectutive runs in 5th gear, also the wheelspeed is so high (140+) that there is greater room for error on the acutal horse power figure, you can see this by how much spikier the graph of a 4th gear dyno is then a 3rd.
In addition to the extra load put on the engine and greater chance of pinging since you don't have the correct volume of air flowing at 100mph through the intake. I would seriously worry about oil temps doing consectutive runs in 5th gear, also the wheelspeed is so high (140+) that there is greater room for error on the acutal horse power figure, you can see this by how much spikier the graph of a 4th gear dyno is then a 3rd.