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GEN 1 (2010-2014) Ford SVT Raptor Forums
Ford Raptor Engine Discussion and Performance Mods
Whipple Installed - Couple minor issues
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<blockquote data-quote="BSouders80" data-source="post: 1794605" data-attributes="member: 56395"><p>Hello all. My raptor has been in the shop for a while getting some mods installed. I went with the 700hp Whipple stage 2 kit from JDM. Also did RPG traction bars, SW cat back exhaust and axle exchange DS.</p><p></p><p>I changed to the 3.25" pulley as compared to the 3.50" pulley that came on the whipple. I've noticed a little surging while accelerating moderately in 4th. It's not noticeable if you just mash the throttle to WOT. Does the truck need a different tune when switching from 3.5 to 3.25" pulley? If no, any ideas on the surging? </p><p></p><p>I have a small clank when taking off from a stop sign. Only in forward and I cannot repeat the sound unless I come to a stop from at least like a 20 mph stop. I can't get the noise to make the "clank" when shifting into reverse or moving in reverse from a stop. I'll get it up on some jack stands when I get a little time, but nothing looked obvious.</p><p></p><p>If I'm in 3rd gear and accelerating to the point to where it shifts down to 2nd gear, it shifts down HARD. It did it twice yesterday, but hadn't noticed before that (also after 3.5 to 3.25 pulley). </p><p></p><p>The truck has 80,500 miles on it and the SC has been on for about 600 miles now.</p><p></p><p>Any input would be much appreciated.</p></blockquote><p></p>
[QUOTE="BSouders80, post: 1794605, member: 56395"] Hello all. My raptor has been in the shop for a while getting some mods installed. I went with the 700hp Whipple stage 2 kit from JDM. Also did RPG traction bars, SW cat back exhaust and axle exchange DS. I changed to the 3.25" pulley as compared to the 3.50" pulley that came on the whipple. I've noticed a little surging while accelerating moderately in 4th. It's not noticeable if you just mash the throttle to WOT. Does the truck need a different tune when switching from 3.5 to 3.25" pulley? If no, any ideas on the surging? I have a small clank when taking off from a stop sign. Only in forward and I cannot repeat the sound unless I come to a stop from at least like a 20 mph stop. I can't get the noise to make the "clank" when shifting into reverse or moving in reverse from a stop. I'll get it up on some jack stands when I get a little time, but nothing looked obvious. If I'm in 3rd gear and accelerating to the point to where it shifts down to 2nd gear, it shifts down HARD. It did it twice yesterday, but hadn't noticed before that (also after 3.5 to 3.25 pulley). The truck has 80,500 miles on it and the SC has been on for about 600 miles now. Any input would be much appreciated. [/QUOTE]
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GEN 1 (2010-2014) Ford SVT Raptor Forums
Ford Raptor Engine Discussion and Performance Mods
Whipple Installed - Couple minor issues
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