Hymee Exhaust installation + Dyno results!!
01-29-2006, 12:34 AM
#27
•▫▪› is way, way way way way way way way way wayyy better than you ∙ ∙ ∙ ∙ ∙ ∙ ∙ ∙ ∙ ∙ ∙ ▪ ;)
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Originally Posted by Revolver
Well come on Kunz - is there a reason for the coyness?
The dyno results werent duped, the operator has regular dyno days in Sydney (apparently) so I guess he knows what he's doing..not to mention, he's only 26 and somehow modifying the dyno results to show a gain would be useless for him - hes not selling the product! (Anyway, modifying the dyno to - dont know how that would happen as its pretty much done in real-time)
It could be something to do with the 05 model ECU's as well. Has any other member dynoed their 05 rx8 with the hymee catback?
I'm going to be doing the intakes soon and will most like get it dynoed again (before+after) at a different location. Hopefully the before dyno result should be ~135kW - in that case, it will definitely cause a huge stir amongst fellow 8'ers im sure.
And btw Revolver, why werent you there? lol i brought some tools to put your lights in for you; and we had plenty of time to do it.. ah well next time...
01-29-2006, 01:24 AM
#28
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What kind of mid-pipe is it? A bought one or custom-made?
I had a VERY good reason not to be there but thanks for bringing some tools along. I'll PM you when I can sort out some times and maybe trot out to your joint for a light session.
I had a VERY good reason not to be there but thanks for bringing some tools along. I'll PM you when I can sort out some times and maybe trot out to your joint for a light session.
01-29-2006, 05:02 AM
#29
fair play~
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oh, you had the lights done kunz? no wonder, I was following behind you and notice you parking lights looked blue even without turned on 
damn, I wanted to see it in person. but I guess it's not much use during day light.
do you reckon it was a good money spent?
i was thinking of getting one but still haven't ordered the set yet..
thought it maybe too much work..
anyways, i want to get certain ahem.. sw from you btw cheers
damn, I wanted to see it in person. but I guess it's not much use during day light.
do you reckon it was a good money spent?
i was thinking of getting one but still haven't ordered the set yet..
thought it maybe too much work..
anyways, i want to get certain ahem.. sw from you btw
cheers
01-29-2006, 05:13 AM
#30
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startin to understand the elite boyz a little bit. since their cars had mod exhuasts (borla i fink willi had..) and extractors, they pulled off less kw than me.
i think we need to conduct an experiment.
2 rx8s on dynos with following constraints..
1. same number of kms
2. same mods or both completely stock
3. same model year
4. same petrol type (bp, or shell etc)
5. same operator, same dyno. (non bias)
would be interesting to do this..
i think we need to conduct an experiment.
2 rx8s on dynos with following constraints..
1. same number of kms
2. same mods or both completely stock
3. same model year
4. same petrol type (bp, or shell etc)
5. same operator, same dyno. (non bias)
would be interesting to do this..
01-29-2006, 05:35 AM
#31
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Originally Posted by MissyK
would be interesting to do this..
but i dont really believe in the dyno figures....
i'd more interested in the "drivebility"
there is no point having 400kw+ at the wheels when you cant use it properly on the road(s)......
01-29-2006, 05:38 AM
#32
•▫▪› is way, way way way way way way way way wayyy better than you ∙ ∙ ∙ ∙ ∙ ∙ ∙ ∙ ∙ ∙ ∙ ▪ ;)
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Originally Posted by playa78
oh, you had the lights done kunz? no wonder, I was following behind you and notice you parking lights looked blue even without turned on
damn, I wanted to see it in person. but I guess it's not much use during day light.
do you reckon it was a good money spent?
i was thinking of getting one but still haven't ordered the set yet..
thought it maybe too much work..
anyways, i want to get certain ahem.. sw from you btw cheers
damn, I wanted to see it in person. but I guess it's not much use during day light.
do you reckon it was a good money spent?
i was thinking of getting one but still haven't ordered the set yet..
thought it maybe too much work..
anyways, i want to get certain ahem.. sw from you btw
cheersRevolved: the midpipe is a custom one, but again, nothing special
Kall: Definitely a good idea to do that - maybe when you and taka come down? or at 06 Nats :D
01-29-2006, 05:40 AM
#34
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Originally Posted by EZZY
probably...
but i dont really believe in the dyno figures....
i'd more interested in the "drivebility"
there is no point having 400kw+ at the wheels when you cant use it properly on the road(s)......
but i dont really believe in the dyno figures....
i'd more interested in the "drivebility"
there is no point having 400kw+ at the wheels when you cant use it properly on the road(s)......
01-29-2006, 05:41 AM
#35
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Originally Posted by kunz
Agreed, but being the revhead we are, having extra power comes in handy now and then - like when trying to overtake on a one-laned road which a really slow camry driver who is doing much less than the speed limit even when road conditions are at its best
01-29-2006, 05:42 AM
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Originally Posted by kunz
Agreed, but being the revhead we are, having extra power comes in handy now and then - like when trying to overtake on a one-laned road which a really slow camry driver who is doing much less than the speed limit even when road conditions are at its best
01-29-2006, 05:44 AM
#37
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Originally Posted by MissyK
i still manage to overtake in my mum astina
01-29-2006, 05:44 AM
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Originally Posted by MissyK
not tryin to offend u kunal, just that we;ve had this dyno discussion b4. when our cars were dynoed and we got such a difference here.
2006 i prob will sit that nats out aswell. if its oct its durin my exams again lol
2006 i prob will sit that nats out aswell. if its oct its durin my exams again lol
Anyway, I'm really looking forward to the next dyno as well as the figures dont look that right to me as I said earlier..but its hard not to believe it when we did 4 runs and after the 3rd a subaru was done cos the power gain was pretty unbelievable.
I think timbo's suggestion probably is the best explanation (so far) -
ie, the pipe was already constricted prior to the exhaust installation hence the lower 'before' reading.
01-29-2006, 05:46 AM
#40
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Originally Posted by EZZY
mate... i have NO idea what you are on about....
SURE you dont
01-29-2006, 05:47 AM
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Originally Posted by MissyK
we are talkin about overtakin a slow ***. u wouldnt goin that slow in it neways
01-29-2006, 05:51 AM
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Originally Posted by EZZY
are you trying to say im hoon? nope not me..... thats player78
OH lol sorry i forgot to mention that EZZY is an angel of a driver. I bet cops admire him when they see him drive =)
01-29-2006, 05:53 AM
#45
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Originally Posted by kunz
OH lol sorry i forgot to mention that EZZY is an angel of a driver. I bet cops admire him when they see him drive =)
Should i be worried about gettin into car wit him? After all, im riding in his car when i come to the cruise.. lol
01-29-2006, 05:56 AM
#47
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Originally Posted by MissyK
Should i be worried about gettin into car wit him? After all, im riding in his car when i come to the cruise.. lol
01-29-2006, 06:01 AM
#49
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To the best of my knowledge, no-one else has ever gotten this sort of hp improvement with exhaust modifications only. What Mazda call the "midpipe" many call the "intermediate pipe". This is the pipe that connects between the cat assy/presilencer and the rear muffler assy.
Many in the rotary community call the "midpipe" the section of the exhaust that contains the cat converter/presilencer. Now there are pipes available that do away with the presilencer and have a super high flow cat. The RP Supercat pipe comes to mind. This high performance "midpipe'" releases about 8hp at the wheels. Add this 8hp to the couple that the Hymee catback will give you, and you get 10rwhp.
kunz's dyno shows an improvement of 12kW/16hp. If the replacement of the restrictive stock cat and presilencer produces only 8hp, how can the addition of only a (presumably) mandrel bent section of intermediate pipe produce 14hp (taking the Hymee catback improvement out of the equation)???
Someone help me understand......
Many in the rotary community call the "midpipe" the section of the exhaust that contains the cat converter/presilencer. Now there are pipes available that do away with the presilencer and have a super high flow cat. The RP Supercat pipe comes to mind. This high performance "midpipe'" releases about 8hp at the wheels. Add this 8hp to the couple that the Hymee catback will give you, and you get 10rwhp.
kunz's dyno shows an improvement of 12kW/16hp. If the replacement of the restrictive stock cat and presilencer produces only 8hp, how can the addition of only a (presumably) mandrel bent section of intermediate pipe produce 14hp (taking the Hymee catback improvement out of the equation)???
Someone help me understand......
01-29-2006, 06:01 AM
#50
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Originally Posted by MissyK
i am not riding in ur boot!!!!!!
Originally Posted by MissyK
u fink ur only 1 there that i can ride wit? hell i'll have a fair few guys to chose from mwahaha