Bolt on 7.5G 6 speed dyno

Sonnick

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Hey guys, I haven't been on here in awhile. Hope you guys are doing well. :D

I got my car redyno'd the other day. Previously, I had dyno'd 250/209 STD corrected with the following mods:

CAI
RV6 V1 Jpipe
Precat Deletes
OBX Catback
P2R Ported intake manifold

Mods since last dyno:

Custom Jpipe/2.5 to 3" merge collector
3" catback
UR Pulley
Intake manifold butterfly delete

With these new mods I put down 256whp/222wtq SAE corrected. My STD numbers were 264/229. So I gained 14whp/20wtq! I'm very happy with the gains. And I'm not done yet :) The graph of the SAE numbers is below. I had videos, but I'm having trouble uploading them from my iPhone for whatever reason. Enjoy!

photo.jpg
 

hiddengamer7

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Nice numbers! I remember back when you had your 6th gen and were putting down awesome track times even then. Keep it up!
 

Sonnick

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Thanks man. I've still yet to dip into the 13s with this thing, UGH. My next trip should settle that though.
 

SykVSyx

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Nice numbers.

Any of the future plans involve a turbo or something, or just other engine/exhaust mods?
 

RedRyder

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Nice job. I’ve never heard of anyone deleting the butterfly. Isn’t that suppose to be there? What does deleting it do?
 

Sonnick

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Full interior. I should've been in the 13s for awhile but never would launch quite right. My shifting is on point, but now I've been practicing my launches and am happy to say they've been real nice. 13s are 100% next time out.

The butterfly delete apparently smooths out the midrange a bit. When they open up around 4K there is a dip in the powerband. After they come out there is no dip at 4K. Not sure if there are any gains up top though, or if the powerband shifts to the right.

I'm trying to keep my plans hushed for now, but I'm looking for 270/235 SAE next time on the dyno, untuned. Should be next month.
 

SykVSyx

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Nice job. I’ve never heard of anyone deleting the butterfly. Isn’t that suppose to be there? What does deleting it do?

I believe it keeps the air flow continuous rather than only opening at certain RPM points and more specifically what Sonnick said.

I figured you probably wouldn't get in to the details of future plans, but looking forward to the next update.
 
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lwlba

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Full interior. I should've been in the 13s for awhile but never would launch quite right. My shifting is on point, but now I've been practicing my launches and am happy to say they've been real nice. 13s are 100% next time out.

The butterfly delete apparently smooths out the midrange a bit. When they open up around 4K there is a dip in the powerband. After they come out there is no dip at 4K. Not sure if there are any gains up top though, or if the powerband shifts to the right.

I'm trying to keep my plans hushed for now, but I'm looking for 270/235 SAE next time on the dyno, untuned. Should be next month.

dam! can't wait to see it!
 
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