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   Joey...

My sled: -07 summit adr 600 sdi with RKT head pump gas domes and boyesen rage gage.
Kit: SMT helix, brp purple sec spring, 200/290 primary spring, 23 g pins (need to test 24g).

Now sled engage at 4000, need to lower it to round 3500. I know that primary spring start force will effect engagement but, do i need to lower final force too, to get straight shift?

Author	Message
KasKas Member Joined: 21 March 2009 Location: Finland Online Status: Offline Posts: 5	Topic: Engage RPM Posted: 10 March 2010 at 1:35pm
	Joey... My sled: -07 summit adr 600 sdi with RKT head pump gas domes and boyesen rage gage. Kit: SMT helix, brp purple sec spring, 200/290 primary spring, 23 g pins (need to test 24g). Now sled engage at 4000, need to lower it to round 3500. I know that primary spring start force will effect engagement but, do i need to lower final force too, to get straight shift?
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don'tletoff Member Joined: 07 January 2009 Location: United States Online Status: Offline Posts: 9	Posted: 11 March 2010 at 9:32am
	You should only change the start force, changing the final force will change the shift
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Dynamo^Joe Admin Group owner Joined: 20 June 2008 Location: Canada Online Status: Offline Posts: 643	Posted: 17 March 2010 at 12:48am
	Hello, you can run the 160/320 or 160/350 I am surprised you use the 200/290, that did not come with the kit, if at low elevations the kit is supplied with the 200/350.....as long as what you have works eh. Joey
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KasKas Member Joined: 21 March 2009 Location: Finland Online Status: Offline Posts: 5	Posted: 17 March 2010 at 2:58am
	Yes it did come with 200/350 but i had trouble to get straight shift. WOT revs were 8000 0-70 km/h and above that 8600. So u sent me that 200/290 primary spring... Least it has straighter shift. Need to drive really slow sometimes thats why need lower engagement. Kalle E: Yes my elevation 0-1000m (mostly under 600m) Edited by KasKas - 17 March 2010 at 3:12am
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Dynamo^Joe Admin Group owner Joined: 20 June 2008 Location: Canada Online Status: Offline Posts: 643	Posted: 17 March 2010 at 11:57am
	I am curious, do you have the 410 ramp installed? Sometimes when I see rpms drift off higher like that it is due to someone install a 412 or 417 ramp.
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KasKas Member Joined: 21 March 2009 Location: Finland Online Status: Offline Posts: 5	Posted: 17 March 2010 at 1:52pm
	Yes stock 410 ramps.
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Topic: Engage RPM