Hymee gets Supercharged (Part 2)
10-26-2005, 09:05 AM
#886
One thing I can say about the belt issue - is that it still drives well with no blower belt at all. Slightly less power at full throttle than stock, but unless you had a boost gauge and heavy on the trottle, you wouldn't even know.
After the first 3 hour session on the dyno, it became apparent that a major injector change was required due to running out of fuel at about 7000 RPM. This required an extra day on the "rollers" to re-tune against the new injector combo. Thankfully with the Motec, and an experienced tuner, this was not a problem - other than the time and effort required.
After spending two long sessions on the dyno, and limited road/highway tuning, the car was driven to Wakfield the next day. Like I mentioned, this was without incident, and certainly was not being "babied" for the trip. "Hang on Wildcard, the others have dropped behind!"
The interest in the "kit" was pretty amazing the first night at the Nats. I'd be keen to see some others pictures. :D And we were reminded of the noise curfew, and to stop revving it!
While the other FI cars on show either didn't turn a wheel on the track, or made short outings (albeit on very fast one!), Wildcard kept putting in the laps. He was a happy fella. Here are some shots of his adventures:
I did about 5 or 6 laps in the beast, and it was really awesome to drive. Lazy power on tap, much more like a V8 to drive (but with nearly 2x the RPM's
) The extra grunt out of the corners and up the hill was amazing. I just should have thought a bit more ahead, and been game enough for one of the quick experienced fellas to get stuck into it. Although Wildcard's times are pretty impressive considering it was his first time on the track. Also give him some slack and take into acount all the times he had to back off before passing a few of the other "group 1" cars 
We are yet to have our final dyno results, but what I am prepared to say is that from as little as 2500 RPM, it makes 40 more HP at the tyres over stock. That is about double the HP at the bottom end, something that only be achieved with the type of blower we are using, or going to a larger capacity motor, i.e a "stroker". Anyone want to be stroked and blown?
This power gain stays pretty constant at between 40 and 50+ HP over the low to mid range, which means this rotary engined street car makes some real grunt. Useful grunt.
<continued...>
After the first 3 hour session on the dyno, it became apparent that a major injector change was required due to running out of fuel at about 7000 RPM. This required an extra day on the "rollers" to re-tune against the new injector combo. Thankfully with the Motec, and an experienced tuner, this was not a problem - other than the time and effort required.
After spending two long sessions on the dyno, and limited road/highway tuning, the car was driven to Wakfield the next day. Like I mentioned, this was without incident, and certainly was not being "babied" for the trip. "Hang on Wildcard, the others have dropped behind!"
The interest in the "kit" was pretty amazing the first night at the Nats. I'd be keen to see some others pictures. :D And we were reminded of the noise curfew, and to stop revving it!
While the other FI cars on show either didn't turn a wheel on the track, or made short outings (albeit on very fast one!), Wildcard kept putting in the laps. He was a happy fella. Here are some shots of his adventures:
I did about 5 or 6 laps in the beast, and it was really awesome to drive. Lazy power on tap, much more like a V8 to drive (but with nearly 2x the RPM's
) The extra grunt out of the corners and up the hill was amazing. I just should have thought a bit more ahead, and been game enough for one of the quick experienced fellas to get stuck into it. Although Wildcard's times are pretty impressive considering it was his first time on the track. Also give him some slack and take into acount all the times he had to back off before passing a few of the other "group 1" cars We are yet to have our final dyno results, but what I am prepared to say is that from as little as 2500 RPM, it makes 40 more HP at the tyres over stock. That is about double the HP at the bottom end, something that only be achieved with the type of blower we are using, or going to a larger capacity motor, i.e a "stroker". Anyone want to be stroked and blown?
This power gain stays pretty constant at between 40 and 50+ HP over the low to mid range, which means this rotary engined street car makes some real grunt. Useful grunt.
<continued...>
10-26-2005, 09:27 AM
#888
So what about reliabilty on the track. Yes - I have made no secrets of the belt issue, and we are confident of fixing that. I guess what amazed most people, judging by there comments to me, was that we just kept lapping and lapping. About 30 timed flying laps in all, plus the out and in laps. No overheating, no fires, no pulling off to the side, no coming in after 2 or three laps. Just big grins from Wildcard.
We have got some prices together for the kit, and we will be adding a new section to the "PDA" website in the very near future. I wont post the price here as I don't think I am supposed to :o
We even have some pretty commited customers wanting to get this on their cars as soon as possible.
I have a link here to a short video I tossed together. Mainly to experience the blower whine :D
Performance Design Australia's Twin-Screw Supercharged RX-8
(3.5 MB download - crank up the volume!)
I've got some more video footage I need to capture and host, even some on the dyno
After I get some sleep, I'll dig out some of the Motec logging to show the constant boost of this blower. With the pulley combo we are using at the moment, we are running at a nominal 10 PSI boost. And the really cool thing? We were driving along up a bit of a hill the other day with 4 adults in the car. Wildcard was being pretty gentle, but at 50% throttle, he found 10 pound
Even more amazing was when wer were crusing down to the nats...
Wildcard said over the CB "I'm making 2 PSI boost up this hill".
I replied "How much throttle you got on?... I'm flat to the floor in 6th, and it can't keep up..."
Wildcards reply: "I dunno Hymee, it's on cruise control"
Without a word of a lie!
Thanks to Grandad (Phil Laird - Graphic Skills Racing), Wildcard, sco and all you forum guys for getting behind this project. We reckon it is a real winner.
Cheers,
Hymee.
We have got some prices together for the kit, and we will be adding a new section to the "PDA" website in the very near future. I wont post the price here as I don't think I am supposed to :o
We even have some pretty commited customers wanting to get this on their cars as soon as possible.
I have a link here to a short video I tossed together. Mainly to experience the blower whine :D
Performance Design Australia's Twin-Screw Supercharged RX-8
(3.5 MB download - crank up the volume!)
I've got some more video footage I need to capture and host, even some on the dyno
After I get some sleep, I'll dig out some of the Motec logging to show the constant boost of this blower. With the pulley combo we are using at the moment, we are running at a nominal 10 PSI boost. And the really cool thing? We were driving along up a bit of a hill the other day with 4 adults in the car. Wildcard was being pretty gentle, but at 50% throttle, he found 10 pound
Even more amazing was when wer were crusing down to the nats...
Wildcard said over the CB "I'm making 2 PSI boost up this hill".
I replied "How much throttle you got on?... I'm flat to the floor in 6th, and it can't keep up..."
Wildcards reply: "I dunno Hymee, it's on cruise control"
Without a word of a lie!Thanks to Grandad (Phil Laird - Graphic Skills Racing), Wildcard, sco and all you forum guys for getting behind this project. We reckon it is a real winner.
Cheers,
Hymee.
Last edited by Hymee; 10-26-2005 at 09:35 AM.
by Hymee? 
10-26-2005, 09:59 AM
#893
I need to buy an 8 now. I think hymee is going to result in a pacman attack to my bank account . How fast is wildcard going down the straight?
. How fast is wildcard going down the straight?
Last edited by crossbow; 10-26-2005 at 10:01 AM.
10-26-2005, 12:17 PM
#895
Storm Trooper
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I'm starting to like that blower whine more than a turbo spooling up and the bov going off. So nice to finally hear it on a Renesis! Keep up the great work Hymee!
10-26-2005, 02:25 PM
#898
脾臓が痛みました
Join Date: Mar 2005
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Originally Posted by guy321
Hey Hymee,
There's something wrong with Wildcard's car. It looks like it's in a mirror or something.
There's something wrong with Wildcard's car. It looks like it's in a mirror or something.
10-26-2005, 03:28 PM
#899
Coming thru in waves...
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Originally Posted by Glyphon
i think it has something to do with the coriolis effect.
Last edited by Racer X-8; 10-27-2005 at 06:34 PM.
