BritishV8 Forum

General Category => MG Sports Cars => Topic started by: bugguy79 on July 20, 2014, 12:57:15 PM

Title: headers with IFS-Does this look correct anyone??
Post by: bugguy79 on July 20, 2014, 12:57:15 PM
After installing my fender headers from Fast Cars with the Fast Cars IFS, seems that the collector is directly centered over one of the tubes on the lower control arm on each.  Is this correct?  Even if they were to be cut, seems like the elbow would hit and not enough room for suspension travel.  
Engine: Ford 302
Front susp: Fast Cars IFS with Ford 302 motor mounts.

Comments welcomed.
Mike
headerswithIFSdriver1.jpg
headerswithIFSpass1.jpg
Title: Re: headers with IFS-Does this look correct anyone??
Post by: ex-tyke on July 20, 2014, 03:04:58 PM
I'll think you'll find that once the elbow/exhaust is routed and tucked under the chassis, that there will be no interference with any front suspension component.Trimming back the collector is a possibility depending on the elbow.
Title: Re: headers with IFS-Does this look correct anyone??
Post by: ex-tyke on July 20, 2014, 07:37:33 PM
Here's a photo of Ted's headers/exhaust and the relationship to the std MG lower arm - about 2-1/4" to 2-1/2" clearance
Exhheadertostrgarm.jpg
Title: Re: headers with IFS-Does this look correct anyone??
Post by: bugguy79 on July 21, 2014, 10:04:45 AM
Thanks Graham for your help.  You can see where I slipped the elbow on already and the line where it stopped.  If you look at the pics on Ted's website, it sure looks like the collector is offset, just enough...im talking 1".  Your setup is close, but the IFS from Fast Cars is wider both on upper and lower control arms so it's even closer and less tolerance than with the ugraded MG susp components such as in your pic.  I attached a pic with the elbow on and it actually hits the arm!  So the collector for sure has to be cut.  I asked Ted this, but he insisted on sending them back to him and ended up just refunding my $$.  Looking thru the others on BV8, hardly anyone has the Fast Cars IFS with fender headers.  It's either modified MGB crossmember with fender headers OR IFS with block huggers.  Very frustrating.
passwithelbow.jpg
Title: Re: headers with IFS-Does this look correct anyone??
Post by: ex-tyke on July 21, 2014, 12:23:25 PM
How about cutting the collector up a couple of inches and using two 45 degree exhaust elbows instead of a single 90* pipe...I'm sure there is a way to make it work.
Title: Re: headers with IFS-Does this look correct anyone??
Post by: bugguy79 on July 21, 2014, 01:00:47 PM
That is probably what I'm going to have to do, use the 45s vice 90s.  Separate question, where did you obtain the MG V8 decal/symbol from?
Title: Re: headers with IFS-Does this look correct anyone??
Post by: ex-tyke on July 21, 2014, 02:17:32 PM
QuoteSeparate question, where did you obtain the MG V8 decal/symbol from.

Made from scratch. The 'MG' is cut from the early radio blanking insignia, the 'V8' is the original badging for the MGB GTV8 and the 'Ford' badge is from a steering wheel/airbag module.
Title: Re: headers with IFS-Does this look correct anyone??
Post by: mowog1 on July 21, 2014, 05:12:27 PM
Dave Kirkman is running a FastCars front suspension with Ted's RV8 style headers on his conversion.

http://www.britishv8.org/MG/DaveKirkman.htm

Dave is currently in Colorado at BritishV8 2014 with his car.
Title: Re: headers with IFS-Does this look correct anyone??
Post by: rubbinisracin on July 21, 2014, 05:52:42 PM
I have the Fast Cars IFS and I always thought those headers that went to the center were a little strange, however folks seem to make them work.  As you can see in the first few photos of my build, I offset the collector toward the firewall.  Definitely clears the suspension but I do get some frame contact and adds a little more heat to the firewall.  So I guess what I'm saying is pick your poison.

http://www.britishv8.org/MG/IvanCollins.htm
Title: Re: headers with IFS-Does this look correct anyone??
Post by: ex-tyke on July 21, 2014, 09:39:21 PM
QuoteDave Kirkman is running a FastCars front suspension with Ted's RV8 style headers on his conversion

Not quite that easy Rick - Dave, and a few others, use Coyote headers which are the originals developed by Steve Carrick before Ted took over and started to supply. Steve's collector location was a couple of inches further rearward - Ted's new design, like Michaels, allows full lock to lock wheel cut without tires hitting the collector..
Title: Re: headers with IFS-Does this look correct anyone??
Post by: bugguy79 on July 22, 2014, 08:17:10 AM
All: Correct, Dave Kirkman is running this combo.  Unfortunately, no photos of the actual area of concern.  Ted did mention about the tires possibly rubbing, however, I only have 15" rims with 205-50-15, so fairly low profile of tire.  I ended up ordering a different set from someone else.  We shall see how these others work out.
Title: Re: headers with IFS-Does this look correct anyone??
Post by: rubbinisracin on July 22, 2014, 08:21:07 AM
Also, on mine I am running 225 40 R17 tires in the front.  The wheels are 8 inch wide, and I cant remember the offset at this moment but  thats a lot of tire to stuff in that area so you might want to consider your wheel tire combo before making the headers.  I know for me back toward the firewall was the only place there was space for the collector given my tire and wheel sizes.  I ended up cutting my headers up and re-making them to fit once I finalized my wheel choice.
Title: Re: headers with IFS-Does this look correct anyone??
Post by: kerbau53 on August 02, 2014, 07:12:26 PM
Same issue. We just heated the collectors and bent them rearward. I was concerned about the A-arm bushing getting too hot. So far no indication of degradation.



MGB76.jpg
Title: Re: headers with IFS-Does this look correct anyone??
Post by: rficalora on August 03, 2014, 12:58:40 AM
I have Teds IFS, but like Dave, I have Steve's original header design.  Looking at your pictures, are you sure simply shortening the collector isn't all that's needed?  On mine, the 90 is tight to the frame rail - maybe an inch of clearance at most.  The motor mounts Ted uses don't allow the motor to move much at all, so not a lot of clearance needed for the exhaust elbows.  And since the A-arms pivot from that inboard point, they're not going to move much.  I doubt you need more than 2 1/2" clearance to the lower A arm.  But you can check by removing the shock and moving the suspension through its range.