Roush P2. Pulley down and TB - conflicting advice. Lund tuned

[kapiteinlangzaam]

Hi folks,

I have a 2016 with the Roush P2 kit.
Roush 80mm pulley
Roush BAP
IDX 1050 injectors
Catless LTs
LUND tuned for 93

It dynod at 625WHP and it runs great. After 2 years now looking for a slight upgrade.

Important to note, the car has to stay 93.... no E85 here in Europe :(

I emailed VMP as im interestedin their 2.9" / 73mm pulley and twin 69 TB. Their reply was hell ya buddy, you're good to go! Direct fit, no mods, safe on 93.

I emailed LUND, and got a quick reply from John Nardi.

- avoid the VMP twin 69, they give problems, and the smallest pulley you can run on 93 gas is a 79mm. John suggested the Ford Performance twin 65 tb might be worth looking at.

So where does the group opinion lay? Im nothing but satisfied with LUND... have been tuned with them for 7yrs and 80k miles, no issues. My tendency is of course to listen to them.... but it never hurts to gather opinions!

Im ultimately aiming to pick up 30-50WHP if I can.

Would a PMAS CAI also help?

Pic for attention, and thanks for any input

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[baevid]

I'd probably stick with your tuner's advice. Adding more boost safely on pump gas is sketch.

 

[hossman]

Get the PMAS 120 Intake, 79mm pulley and if you can find a used VMP Twin 67 Throttle Body you’re good to go. You’ll probably lay down 670-680whp on good 93.

 

[rolfe.oliver]

Lund is responsible for your car. VMP is responsible for selling you things.

Listen to Lund. There is no reason to try and hit 700whp on pump gas. VMP's 69mm throttle body has been prone to failsafe issues, so the Ford 65mm is typically preferred.

End of the day, listen to Lund. Your smart bet should be stick right around 650-675whp on pump gas, no more than 10-11psi. Any more than that, you will want some Boostane or Octane Booster for safety.

 

[kapiteinlangzaam]

Have listened to the good advice of Lund and you folks here.

Just ordered a 79mm pulley and PMAS CAI from Beefcake.

Shipping cost as much as the parts (FML) living in Europe.

Will keep my eye open for a used twin 67 TB.

Looking forward to getting the parts on

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