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06-06-2006, 06:49 PM #1
- Join Date
- Dec 2005
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- 467
whats next for my 06 rxp? neep help!
this is what i have. I need more
rotax racing level 1 from mark underwood
new sc impeller (new one)
42 lb injectors
4" air intake
light weight retainers and washers
light weight cam gear
boat has been gutted very light
skat 14/19 and adjustment rings (on the way)
riva grate
riva sponsons
riva pro block offs
trued ride plate
umi system
I am now turning a 15/20 8400rpms and running 77 mph.
what do i need next im almost there. i need to be at 80mph!
please put your 2 cents in.
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06-06-2006, 07:10 PM #2
seems the ski could/should be running faster considering what u got in it... i know people with same mods just different intercooler running 79-80 with those mods in wamer weather than u r
i'd have to say you have 4 options... any one of these or a combination of them:
1. sell the rotax IC and get a Vortech
2. get a race cam
3. Les B-kit and BtTeks fuel controller and map
4. Nils' monster aggressive ported head with oversized valves
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06-06-2006, 07:12 PM #3
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- Dec 2005
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- 467
WAHT ARE THE PRICES OF THOSE
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06-06-2006, 07:21 PM #4
1. depends how much u get for your Rotax IC, pay the difference for a vortech
2. race cam is $1290
3. Les b-kit is about $1500 (depends if u send ur core OR if u buy a COMPLETE kit) plus fuel controller and maps another 800 bucks http://www.seadoocentre.com.au/superchargers.htm
see jerry's online store for fuel maps and controllers
4. Nils' work... give him a call (805) 495-3832 ... it's not cheap couple hundred buck work, but from what i hear the difference is
what are your boost readings? how "modded" is your exhaust? when's last time u cleaned out your intercooler? do u run a catch can or stock crank vent setup? i personally think there's still speed somewhere in your current setup, but given the results of others, seems the Rotax IC does not yield the same boost levels and performance as a Vortech/Riva unit, i have no first hand experience with that, just trustworthy testing of people like Green Hulk
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06-06-2006, 07:24 PM #5
- Join Date
- Dec 2005
- Posts
- 467
oh i for got thru hull exhaust.
also getting ready to put a boost gauge in the ski.
I really need this thing to go 80 mph before nationals
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06-06-2006, 07:54 PM #6
So you went from 73.2 at 8280
with just air intake/ecu with 14/19
http://www.greenhulk.net/forum/viewt...871&highlight=
to
77.5 at 8400
with addition of new RR SC, IC and 140 more rpm spinning a 15/20
just 4mph gain from above. Seems you should be getting more, just doesn't add up. I'd check your boost guage and see what your getting and do what Shibby said.
Your 77.5mph stage III ski is running as fast as Jerry's wifes stage II
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06-06-2006, 09:00 PM #7
- Join Date
- Dec 2005
- Posts
- 467
I know this is a beat!
Now truthfully I havent tuned it at all yet now that i just bolted all that stuff on and went racing. THEN TOOK THE VALVE OUT!
gETING THAT BACK IN THIS WEEK. What do you think i should do.
I really want to see what i can do with this 14 skat
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06-06-2006, 09:03 PM #8
Originally Posted by Shibby1485
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06-06-2006, 09:16 PM #9
- Join Date
- Jul 2005
- Location
- Powhatan, VA
- Posts
- 281
If you can send me a picture of your air intake. I could stop over since it is only 6 miles away. Im not turning but 8050 RPM this weekend on my RR race ECU and have not found the problem.
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06-12-2006, 07:43 AM #10
- Join Date
- Dec 2005
- Posts
- 467
just added the skat trak ring adjustment. IM NOW RUNNING 78.7MPH AT 8360RPMS.
what is next?????
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