IMRC DELETE is it worth it?

[Taboo 32]

I’m thinking of doing a IMRC delete on 2017 Mustang GT Automatic
MODS:
Borla Crosspipe
Pipebombs axleback
2018 manifold
VMP tune

I’m not going to be adding a supercharger or Turbo’s. I don’t need top end speed, just want a little more low end torque.

thoughts? Is even worth my time? Has anyone with similar MODS done it?

thanks

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[NightmareMoon]

IMRC delete reduces low end torque and locks it in the high RPM position. Ita not a power mod its a convenience so you don’t have to deal with pigtails or tuning for the more complex IMRCs

 

[Taboo 32]

IMRC delete reduces low end torque and locks it in the high RPM position. Ita not a power mod its a convenience so you don’t have to deal with pigtails or tuning for the more complex IMRCs

NightmareMoon, that just answered what I was suspected all along.
Thanks

 

[Red65]

NightmareMoon, that just answered what I was suspected all along.
Thanks

It’s not so much a “high rpm position” since the IMRC’s open the runner valves almost immediately when going WOT, regardless of RPM. They are there to help increase the air velocity inside the runner when off-idle or cruising. Having an automatic car, you most likely won’t notice a difference, especially if the car is tuned since these cars have a ton of low end torque left on the table with the factory calibration. You have more of a chance in feeling the torque loss that technically comes with the IMRC lockout in a manual car, but many forum users with manual cars (including myself) don’t really notice the loss when driving.

For me, the benefits of not dealing with tuning issues, as well as the possibility of the IMRC system breaking made the lockouts an easy choice for me. My setup technically has less torque already since I went from the 15-17 intake manifold to a ported 2018 and I haven’t really noticed any real loss when driving the car.

 

[SensesFail]

I had to lockout my IMRC's because the intake manifold runners took a shit on me and we're constantly stuck open and closed causing misfires. I personally don't notice any real torque loss.

 

[Stephen@lethal]

Most people will delete them on boosted applications because the forced air can eventually cause the runners to lock up and cause significant issues down the road. If you plan to just stay NA, I wouldn't worry about them unless you start to see them having issues as they do indeed help with low end torque a bit. #Teamlethal.

 

[beefcake]

If your running an 18 mani Lock them out then you don't have to worry about them failing and you won't notice any low end loss. If you are boosted then for sure you need to.

 

[kluke15]

I was going to keep mine afraid of some low end loss. Ended up deleting. Can’t feel any loss. Cleaner install too. I vote to delete it

 

[quickthrottle]

I had to lockout my IMRC's because the intake manifold runners took a shit on me and we're constantly stuck open and closed causing misfires. I personally don't notice any real torque loss.

Did you run a tune after the lockout? I also have done the lockout due to one banks shaft breaking and the stock intake being impossible to find right now, but I have developed a bad mis at certain RPMS and a P0300 DTC.

 

[SensesFail]

Did you run a tune after the lockout? I also have done the lockout due to one banks shaft breaking and the stock intake being impossible to find right now, but I have developed a bad mis at certain RPMS and a P0300 DTC.

Yes, do not do it without a tune

 

[quickthrottle]

Yes, do not do it without a tune

What tune/tuner did you run?

 

[SensesFail]

What tune/tuner did you run?

I did mine at Palm Beach Dyno, I'm a local fortunately, but they're remote work is good too

 

[quickthrottle]

Thanks man

 

[Hostil]

Fordmuscle.com has this article. 60 hp and 50 tq was picked up on a 2018 intake swap leaving the IMRC's inplace on a boosted application. Thats a good amount of power to leave on the table with lockouts? Should I be thinking different?

 

[vanquishvzla]

I have a 15 gt A6 fbo on e85. I have lockouts. Idk what people says about losing low end tq… my butt can’t feel it. To me, the car responds pretty nice and WoT pulls really really nice.

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