What is IMRC....

Dark_5.0 · 08-29-2002, 04:35 PM

I keep reading in peoples sigs how they deleted there IMRC. What is it and what do you accomplish by deleting it?

Thanks,

slick4_6 · 08-29-2002, 09:25 PM

In the 96-98 Cobra's, there are flaps that only allow 1 intake valve per cylinder to flow. Each intake valve has its own runner on the 96-98 and below 3250 rpm the flap stays closed on 1 valve. When you turn past 3250 rpms they open up for top end horsepower. So technically only 1 intake valve works below 3250 rpm. They are a thin plate that bolts between the intake manifold and heads. They are supposed to help with the low end torque. They redesigned the heads and intake for the 99 and ups so they would have the low end torque without the imrc. It is nothing you have to worry about doing. If you look around you can find pics of them. I have seen them before but have forgotten where.

Dark_5.0 · 08-29-2002, 11:55 PM

Thank you for clearing that up.

Later,

08-29-2002, 04:35 PM	#1
Dark_5.0 Registered Member Join Date: Apr 2001 Location: Staging lane Posts: 4,337	What is IMRC.... I keep reading in peoples sigs how they deleted there IMRC. What is it and what do you accomplish by deleting it? Thanks, __________________ 92' LX-Big brakes, Lots and lots of suspension, GT40X heads, Ported cobra intake, stock cam, Vortech SC trim. 00' Lightning-Stock 88'CRX-13 second ego killer

08-29-2002, 09:25 PM	#2
slick4_6 Registered Member Join Date: Jun 2002 Location: Asheboro, NC Posts: 31	In the 96-98 Cobra's, there are flaps that only allow 1 intake valve per cylinder to flow. Each intake valve has its own runner on the 96-98 and below 3250 rpm the flap stays closed on 1 valve. When you turn past 3250 rpms they open up for top end horsepower. So technically only 1 intake valve works below 3250 rpm. They are a thin plate that bolts between the intake manifold and heads. They are supposed to help with the low end torque. They redesigned the heads and intake for the 99 and ups so they would have the low end torque without the imrc. It is nothing you have to worry about doing. If you look around you can find pics of them. I have seen them before but have forgotten where. __________________ 1999 Cobra - Bone Stock Built 6-3-99 #3202 of 4040

08-29-2002, 11:55 PM	#3
Dark_5.0 Registered Member Join Date: Apr 2001 Location: Staging lane Posts: 4,337	Thank you for clearing that up. Later, __________________ 92' LX-Big brakes, Lots and lots of suspension, GT40X heads, Ported cobra intake, stock cam, Vortech SC trim. 00' Lightning-Stock 88'CRX-13 second ego killer

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
cobra?? IMRC/ injectors and C&L	mellow98cobra	Modular Madness	1	07-18-2003 11:18 AM
IMRC	98SNAKE	Modular Madness	12	04-13-2001 01:58 AM
99 Cobra IMRC	RedStang91	Modular Madness	1	06-20-2000 04:37 PM