'98 Cobra IMRCs - TCCoA Forums
 
LinkBack Thread Tools
post #1 of 11 (permalink) Old 09-02-2006, 11:39 AM Thread Starter
PostWhore
 
driller's Avatar
 
Join Date: Nov 2005
Location: Morgantown, WV
Posts: 1,266
Send a message via AIM to driller
'98 Cobra IMRCs

Will the '98 Cobra IMRCs fit on the '93 Mark VIII with a stock(NOT Cobra) intake?

RH Plate: F8ZZ-9U531-AA
LH Plate: F8ZZ-9U531-BA

Do they help?
driller is offline  
Sponsored Links
Advertisement
 
post #2 of 11 (permalink) Old 09-02-2006, 09:37 PM
PostWhore
 
ThunderBeast86's Avatar
 
Join Date: Oct 2004
Location: Detroit
Age: 30
Posts: 1,040
Send a message via AIM to ThunderBeast86
Well, they do help.
In our large cars, the extra hp/torque down low helps our fat ladies move off the line.
As for working....they SHOULD, both are B heads............ someone else will have to chime in.

2.25" True Dual Catless DI/DO Magnaflow Exhaust, Eibach Springs, Addco 1 3/8", J-mod, Viper 791 Alarm, Clarion 855 full color touch-screen, Directed 2400 amp , 2 12" CV Strokers with a custom ported box, K&N air filter, 180* T-Stat, Xcal2 SCT TUNED BY LONNIE 17 x 7.5 (245/45/17) Chrome Cobra R's, 17x9 in back(275/40/17)
DOHC sitting in the garage
Teksid 2v plans?!?!
Tranny Cooler, Dual Remote Oil Filter waiting for install
ThunderBeast86 is offline  
post #3 of 11 (permalink) Old 09-03-2006, 01:15 AM
4th Gear Poster
 
CLowe1243's Avatar
 
Join Date: Oct 2004
Location: District Hgts.
Age: 35
Posts: 281
Send a message via AIM to CLowe1243
It's a pretty simple swap...only issue i am concerned about will be the controllers. But I'm pretty sure it is the same as the Mk8's stock ones. Why would you want to swap IMRC's anyway? Keep in mind you can't fix a bottleneck from the bottom up.
CLowe1243 is offline  
Sponsored Links
Advertisement
 
post #4 of 11 (permalink) Old 09-03-2006, 11:30 AM Thread Starter
PostWhore
 
driller's Avatar
 
Join Date: Nov 2005
Location: Morgantown, WV
Posts: 1,266
Send a message via AIM to driller
Yes, they are both 'B' heads. I was told the '98 Cobra IMRC housings are plastic? Much like the plastic SOHC intakes, they should help resist heat soak. The '93 Mark VIII intake and IMRCs being aluminum get hot easily.

My thinking is the plastic IMRC housings would help, much like a composite spacer. I have a ported/polished/coated Gen1 intake I plan to swap in and was hoping the actual ports were the same to match the IMRCs.

As far as the controllers, I've known others who went with the Cobra intake on a Gen1 and used the electric controllers. It requires using the IMRC vacuum solenoid and a relay to acuate the electric Cobra IMRC controllers. A MSD window switch could also be used. So, barring any physical constraints, one should be able to make it work?

Or I can just clean up the IMRCs I have, gasket match them and go with what I have.

As far as the bottleneck, I hope to later get ported/polished heads with a new valvetrain and cams.
driller is offline  
post #5 of 11 (permalink) Old 09-03-2006, 12:38 PM
Seasoned Veteran Poster
 
Thomas A's Avatar
 
Join Date: Jul 2002
Location: Overland Park, KS
Age: 36
Posts: 859
GenII Mark VIII IRMC's are also plastic. Physically, they will mount up just the same, and as you mentioned, you just have to rework the controllers a bit as they are a different setup.

Thomas

1989 Cougar XR7 - 13.21 @ 102.29 -SOLD-
1993 Thunderbird SC -Awaiting Suspension-
1994 Mark VIII - 14.85 @ 93.95 -SOLD-
1996 Thunderbird Sport 15.57 @ 89.42 -Retired @ 258k-
1997 Thunderbird LX AED -SOLD-
1997 Thunderbird Sport 15.71 @ 86.89 -SOLD-
1997 Mark VIII LSC 12.97 @ 112.15 -SOLD-
Thomas A is offline  
post #6 of 11 (permalink) Old 09-03-2006, 01:14 PM
PostWhore
 
Lonnie's Avatar
 
Join Date: Jul 2002
Location: Crackerville, FL
Posts: 1,212
Yes they will work John but you will like you said have to use their controler or grind off the linkage of both and then install the Mark's linkage. They not only help with the heat soak but they are slightly larger.

www.blueovalchips.com
[email protected]
1992 5.0 Thunderbird Sport, 328 rwhp 347 rwtq
1995 Mark VIII, 287 rwhp 305 rwtq

I have seen the truth and it makes no sense
Lonnie is offline  
post #7 of 11 (permalink) Old 09-03-2006, 02:13 PM Thread Starter
PostWhore
 
driller's Avatar
 
Join Date: Nov 2005
Location: Morgantown, WV
Posts: 1,266
Send a message via AIM to driller
Thanks for the response guys!

Let the hunt begin!
driller is offline  
post #8 of 11 (permalink) Old 09-04-2006, 02:42 PM
3rd Gear Poster
 
Join Date: Sep 2003
Location: Metro Detroit, MI
Posts: 189
If you can fit cobra/gen2 plates with stock 1st gen intake, you're a GOD and I bow in front on you ! LOL

IMPOSSIBLE !!! without reworking the primaries of the intake, or IMRC ports. They will bolt up but the plates won't line up with intake ports.
Mad1stGen is offline  
post #9 of 11 (permalink) Old 09-04-2006, 03:07 PM Thread Starter
PostWhore
 
driller's Avatar
 
Join Date: Nov 2005
Location: Morgantown, WV
Posts: 1,266
Send a message via AIM to driller
So the Gen2/Cobra IMRC ports are the same as the head but not the same as the Gen1 intake?

Weird.
driller is offline  
post #10 of 11 (permalink) Old 09-04-2006, 03:09 PM
3rd Gear Poster
 
Join Date: Sep 2003
Location: Metro Detroit, MI
Posts: 189
yup, that's why when swapping to the cobra intake on a 1st gen car, you have to use the cobra/gen 2 plates with either electric actuators or swap over the rods and vac actuators from mark 8 to cobra plates. Either way you have to use the cobra plates. Sorry ...
Mad1stGen is offline  
post #11 of 11 (permalink) Old 09-04-2006, 04:38 PM Thread Starter
PostWhore
 
driller's Avatar
 
Join Date: Nov 2005
Location: Morgantown, WV
Posts: 1,266
Send a message via AIM to driller
That's fine, I'll just clean up the IMRCs I have to go with the intake swap. If/when I go to a Cobra intake, I'll go with the Cobra IMRCs.
driller is offline  
Reply

Quick Reply
Message:
Options

Register Now



In order to be able to post messages on the TCCoA Forums forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.

User Name:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.

Password:


Confirm Password:
Email Address
Please enter a valid email address for yourself.

Email Address:
OR

Log-in











Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page



Posting Rules  
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is On
Trackbacks are On
Pingbacks are On
Refbacks are On

 
For the best viewing experience please update your browser to Google Chrome