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Discussion Starter #1
Decided to upgrade my dry 50 kit to a wet system.
New Walbro GSS342 pump , solenoids , foggers and some straight pipes to bend into the airbox...
Fingers crossed i finish for testing and racing sunday :)
 

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Sweet setup. Always wanted to spray my bikes but was always to afraid id blow the engine. Good luck with it!
 

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Decided to upgrade my dry 50 kit to a wet system.
New Walbro GSS342 pump , solenoids , foggers and some straight pipes to bend into the airbox...
Fingers crossed i finish for testing and racing sunday :)
nice work one of the better jobs how much you going to spray
 

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Discussion Starter #5
Spraying 75 shot , with a bit more progressive at launch.
A few other tweaks to my gearing as im running out of gears . Stepping back up to 17 front :)
Ultimately aiming for high 8s and 150 + with me at 250 and im nearly there.
Recently ran 9.2 with top speed 147 limited by gearing and fuel.
So im hoping she will hold out for a few meets and an engine overhaul over the winter to allow me to add a few more pills and take me off the mechanical knife edge :)
 

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It should run 8's very easily. I recently sprayed 60 on my 1320 motor and went 8.77 at 160 mph and I weigh 260 to 270 lbs. Good luck and have fun with it.
 

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Discussion Starter #7
Im having fun for sure :)
I guess as normal I will go backwards again first but we will see :)
If I can keep the 1.4 60ft and front wheel down with a longer progressive shot with the extra gearing I might , just might be there :)
 

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Im having fun for sure :)
I guess as normal I will go backwards again first but we will see :)
If I can keep the 1.4 60ft and front wheel down with a longer progressive shot with the extra gearing I might , just might be there :)
how long is your swing arm? im 6 over spraying dry .22 jet still wheeling i dont have a progressive box though just wot switch
 

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Discussion Starter #10 (Edited)
Raceday tomorrow and its nearly midnight!
Bike still not finished :)
Walbro pump installed .
Changed bear stacks to all short.
Teed off fuel to solenoid.
All wiring done literally just the noids to wire.
All pipework done just final tightening and adjustment .
Modified frame to get everything in the airbox.
At least 4 hrs more work! 4am start I think! Phew.!
Somethings bound to go wrong or not work lol.
 

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wet kits sure are a pain to install. I did a stealth kit awhile back and hope we dont have to change jets for a long long time
 

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whats your pill spread? running efi pressure to the fuel noid?
 

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Discussion Starter #13
Hi Scot, I cheated and neatly cut the top of the frame open:)
Now its a bolt on cover. Changing jets will be easy as the whole lot lifts out ss one
Biggest ache was bending the metal tubes and getting it all aligned
Ive just finished that with both noids connected and a purge .
Its 3am here so im going to bed for an hour or two and the main bits ready to drop in . Fuel pipe and spray line all there ready to tighten up.
Its a tall order for sure. Need more time!

Yes running efi pressure for the fuel 20/11
 

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Discussion Starter #15 (Edited)
Yahhay!
4 runs all over 150mph best of 152 - all on limiter.
No time to change sprockets.
Ets 9.2s
The shot was similar to my dry but the new pump definately improved the top end as it was struggling to get to limiter before.
So pleased with that.
60 fts down to 1.5 /6s so top end up bottom end down.
Bit of clutch adjustment and sprocket change for next time :)
Pleased but tired!
 

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Discussion Starter #16
Scot. I take it back. Its never gonna be easy lol. Was still supertight. Worst thing is I have a minor thread leak. So its coming back out :(
Optimistic though...Bike ran better!
Think just changing the pump may have been enough but fueling is better for sure.
 

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be careful with nitrous and the limiter!!! its a sure way to kill a motor
 

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Discussion Starter #19
Hey Scott, I killed it :)
After an ok start, 1.5 60, 122 1/8
I missed 5/6 change.
Over revved on limiter, shifted second attempt up to 6 went forward but slowing to a 9.31 /144 lovely trail of blue smoke :)

To be fair ive hammered it and am amazed it lasted stock this long.
On inspection I realised I had forgotten to put the retard back into the arc2 after moving it.

No 2 piston ex port totally wet , so will have head off later today. Am expecting a holed piston and head gasket fail an
- hoping head is ok but no mechanical noise just lots of smoke.
Water clean , oil clean.
Spare engine coming out from under the bench :)
Only 8 weeks left to do any more runs so will just run with block/ pistons off spare motor.
Also got some APE HD valve springs to drop in this time and will put in inlet cam and degree cams next time.
Getting set of nitrous pistons and doing the first gear mod over the winter for next year.
I truly believe that if the run had changed to 6th it would have been my first hi 8.
But I will be checking that ive got 4° out nxt time :)

Im thinking MTC tall deck 11-1 CR with 100 shot any one running a big shot like to comment on which pistons??
 

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Sorry to hear that you killed it mate.

Any pics of how you cut the top of the airbox off and made a cover for it?
 
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