414 WHP Esmeril Racing Turbo RX-8
10-23-2008, 03:02 PM
#51
Approximation
Making use of my awesome math skillz, with 4th gear ratio to get the rpm and the hp/tq relationship I give you this:
Last edited by neit_jnf; 10-23-2008 at 04:15 PM.
10-23-2008, 03:20 PM
#52
The Local Idiot
Join Date: May 2008
Location: Big D, Texas
Posts: 406
Likes: 0
Received 0 Likes
on
0 Posts
As for the missing information on the dyno plot, they said the RPM pickup wasn't working, and I guess they just chose not to put torque on there (although those can both be derived from the available information with a bit of work). It would have been nice to see AFR as they claim the lack of power on the top end was due to the tune being off.
10-23-2008, 03:29 PM
#53
BDC Motorsports
In all honestly that's no likely to happen. This dyno plot was done at 16 PSI which is much higher than the shipped kit is set up for. With time, money, and a good tuner somebody could do it probably, but IMO people that have those things will be looking elsewhere to begin with. The flow map for the turbo they are using was posted in another thread, and at higher levels of boost it is definitely capable of feeding the engine enough air to produce this kind of power if the tune is nailed down. Depending on supporting mods (cooling, meth injection, etc.--none of which are included in the kit) I would also seriously question reliability at these levels.
As for the missing information on the dyno plot, they said the RPM pickup wasn't working, and I guess they just chose not to put torque on there (although those can both be derived from the available information with a bit of work). It would have been nice to see AFR as they claim the lack of power on the top end was due to the tune being off.
B
10-23-2008, 03:37 PM
#54
The Local Idiot
Join Date: May 2008
Location: Big D, Texas
Posts: 406
Likes: 0
Received 0 Likes
on
0 Posts
10 gallons of leaded race fuel and the (assumedly) same cold plugs and it could easily replicatable assuming that what's being posted here as far as the dyno graph is concerned is truthful. You've mentioned the flow (compressor) map of this thing: where is it? Is it just a regurgitated Turbonetics T70 compressor map? I wonder if anyone who's purchased one of these has removed the compressor housing and measured the compressor wheel...
10-23-2008, 03:48 PM
#55
BDC Motorsports
That turbo is definitely not a Turbonetics big-shaft, full T4 T70 so that compressor map can't apply. I doubt a genuine Turbonetics T70 turbo would even fit in there in that same position. It looks more like a small-shaft T3/T4 hybrid w/ a smaller-than-70mm compressor. I've seen this same approach of using different compressor maps being used in both eBay 'turbos-for-sale' ads as well as other peoples' posts regarding whatever (x) turbo they have. I'd like to see the specs on the compressor wheel. I'd be able to identify exactly what it is and how much realistic power output it'd yield.
The comment regarding race gas was to add an enormous amount of reliability so as to enable the possibility of another 8 owner w/ the same turbo kit cranking the boost up to 16psi and trying to replicate at or near the same power/torque output as what is claimed in this thread.
Also, there is no such thing as a "conservative"tune at 16psi of boost using any pump fuel alone with a 10:1, high compression ratio, zero overlap RE engine.
B
The comment regarding race gas was to add an enormous amount of reliability so as to enable the possibility of another 8 owner w/ the same turbo kit cranking the boost up to 16psi and trying to replicate at or near the same power/torque output as what is claimed in this thread.
Also, there is no such thing as a "conservative"tune at 16psi of boost using any pump fuel alone with a 10:1, high compression ratio, zero overlap RE engine.
B
10-23-2008, 03:59 PM
#56
The RPM pickup I could agree with. It's happened to me several times. However, if the AFR's actually went into the 9's, it would've flooded the motor, blown spark out, and caused it to knock which would've showed up on the dyno graph like techtonic spikes during an earthquake. Been there, done that foolishly, too.
B
B
Dyno Video was recorded...we have to dump it from the camcorder and upload it.
See above, our previous 366whp dyno was with the upgraded ignition also, see here for more info: https://www.rx8club.com/series-i-major-horsepower-upgrades-93/esmeril-dyno-out-box-155067/
Stock gearbox with upgraded clutch plate. We are seeing some slipping of the clutch at over 400whp. We already have something new we are putting on for the next step but we will retain the stock gearbox...it holds just fine (driver dependent of course
)Best Regards,
Jason
10-23-2008, 04:09 PM
#57
The Local Idiot
Join Date: May 2008
Location: Big D, Texas
Posts: 406
Likes: 0
Received 0 Likes
on
0 Posts
Maybe one of the boys over at Esmeril would be kind enough to shed some light on the subject?
10-23-2008, 04:18 PM
#58
BDC Motorsports
I believe Mazsport uses something similar for their turbo kit, and the output from that kit and the Esmeril kit look fairly close to each other at the same PSI, so you could be right.
Maybe one of the boys over at Esmeril would be kind enough to shed some light on the subject?
Maybe one of the boys over at Esmeril would be kind enough to shed some light on the subject?
B
10-23-2008, 06:23 PM
#60
The Local Idiot
Join Date: May 2008
Location: Big D, Texas
Posts: 406
Likes: 0
Received 0 Likes
on
0 Posts
10-23-2008, 06:51 PM
#61
CONUS
Join Date: Sep 2007
Location: National Capital Region
Posts: 63
Likes: 0
Received 0 Likes
on
0 Posts
That is absolutely astonishing. Great job...
I wonder how reliable it will be if it's kept at 16psi's? How many miles can be put on it before a rebuild is needed?
I ask because I'm starting to contemplate getting the BHR turbo kit...
I wonder how reliable it will be if it's kept at 16psi's? How many miles can be put on it before a rebuild is needed?
I ask because I'm starting to contemplate getting the BHR turbo kit...
10-23-2008, 08:33 PM
#63
Registered Noob
Join Date: Sep 2007
Location: Long Island (Suffolk), NY
Posts: 808
Likes: 0
Received 0 Likes
on
0 Posts
it's gotta be brutal to keep it that high regularly, I don't think this is meant to foster hope of driving around with a 400WHP rx8 daily driver, it's just a new best for the kit. They didn't even try to fine tune that run, they are keeping their street tune. Probably risky business. Maybe with those new apex seals their website says they are working on it might be another story :D
10-27-2008, 10:49 PM
#70
10-29-2008, 12:08 PM
#72
Registered
Join Date: May 2007
Location: New Jersey
Posts: 47
Likes: 0
Received 0 Likes
on
0 Posts
10-29-2008, 09:23 PM
#73
Registered
iTrader: (1)
Join Date: Sep 2004
Location: Long Island NY
Posts: 373
Likes: 0
Received 0 Likes
on
0 Posts
Ok will this be put in on the dyno compare thread? How was it that you guys got it to 16psi? I hope you also update your website. Well I see you did! You are just going to have to give us those video's fast! I would like to see the TQ curve on this more clearly.
Last edited by ssspeedfreak; 10-29-2008 at 09:56 PM.
