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Whipple 2.9 on a 6.2, what else?

Old 05-28-2019, 10:54 PM
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Default Whipple 2.9 on a 6.2, what else?

Bought a Whipple 2.9 for my 17' Sierra w a 6.2. Most of you guys seem to have the Whipples on the 5.3s. What else should I be looking at getting before I put this huffer on?
And what do you guys think of the driveshaft on these newer trucks? Is it gonna hold up and stay under the bed this time?
Some things Ive thought about adding were,

NW 102 TB
Flex fuel sensor setup for E85
Cam setup from LJMS
LT4 high pressure pump
Some smaller pulleys for more boost
1 7/8" Headers w cats
Has Corsa catback already

Let me know what you guys think and if Im missing anything?
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Old 05-29-2019, 06:36 AM
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Get a driveshaft. LOL.
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Old 05-29-2019, 08:30 AM
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Put some good lifters in it. Get the piece of **** stock ones out, ive been hearing a lot of horror stories from my dealer friends.
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Old 05-29-2019, 09:33 AM
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LT4 injectors, Low pressure auxiliary pump. WeaponX motorsports seems to have some nice stuff.
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Old 05-29-2019, 10:01 AM
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Originally Posted by 03sierraslt View Post
Put some good lifters in it. Get the piece of **** stock ones out, ive been hearing a lot of horror stories from my dealer friends.
I hear that and seen the stories. I've got a set of Johnson link bars here waiting.
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Old 05-29-2019, 10:02 AM
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Originally Posted by ZO6Ted View Post
LT4 injectors, Low pressure auxiliary pump. WeaponX motorsports seems to have some nice stuff.
Ya I've been looking at their stuff since I saw you mention it about those parts in another post
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Old 05-30-2019, 08:12 AM
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I dont think you will be able to run an LT4 pump with the lower manifold on the whipple, unless they have made a recent change to the make room for it, hopefully they have.
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Old 05-30-2019, 07:08 PM
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Originally Posted by banker099 View Post
I dont think you will be able to run an LT4 pump with the lower manifold on the whipple, unless they have made a recent change to the make room for it, hopefully they have.
That would be unfortunate, Ive heard of this issue but havent seen any actually pics of fitment? If the pump cant be fit/used what are the other options for fueling
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Old 05-30-2019, 07:08 PM
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Has anyone used the NW 102 on these DI engines and is it plug and play still to factory harness?
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Old 05-31-2019, 11:41 AM
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I talked to Whipple 6 mo ago and they said no modifications have been made to change anything on the lower. However it seems to be that sometimes the LT4 pump fits without issue and other times some grinding is required. I saw one case where they ground through to the air passageway and had to weld it up. So it is possible to have an issue...or not. But it is totally doable either way. Just be prepared in case.
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