Surging at idle with FRPP Hot Rod Cams

tribaltek · June 3rd, 2008, 11:04 PM

I need some serious input here...

So I got the cams installed today, and flashed the car with Bamachips 93 Race tune (made for the FRPP cams), and while it does run good at speed, during idle it almost stalls. It goes from around 700 RPM down to 400 RPM and back... continually... just surging and surging. My lights even dim when it gets down to the low end.

Also, when I'm cruising at speed and then put it in neutral to slow down because of a red light or whatever, the idle drops down to about 250 RPM and then goes back up to about 500 RPM... where it stays just fine, miraculously, until I stop completely, then its back to the surging.

What the hell does all of this mean?!?!

tribaltek · June 3rd, 2008, 11:07 PM

I emailed Doug to see if he has any insight into this. Until then, if anyone has any ideas, let me know.

mustangrebuilder · June 3rd, 2008, 11:25 PM

im thinking you should check your timing.

mustangrebuilder · June 3rd, 2008, 11:26 PM

p.s did you break in the cams???

prinzzz · June 3rd, 2008, 11:26 PM

cam phasers?

tribaltek · June 3rd, 2008, 11:27 PM

Let me clarify by stating that I did not install the cams myself. I had a FRPP dealer install the cams. I wouldn't know how to check timing, and I don't know how to check cam phasers (or even know what they are).

BLACJAC · June 3rd, 2008, 11:28 PM

sounds like the tune isnt hooking up with the camms properly. the timing is controlled by our computer, via ur new tune , doug should have a cure for this

mustangrebuilder · June 3rd, 2008, 11:30 PM

well you should make sure they broke the cams in right and the timing can be off one tooth.

if you cam phasers were not reinstalled you would know

mustangrebuilder · June 3rd, 2008, 11:31 PM

yes it could be from the tune, take you tune off and see how the car runs

tribaltek · June 3rd, 2008, 11:36 PM

OK, I can try that in the morning.

I was searching for more possible causes of surging and read something about vacuum lines. Any thoughts on that?

I just really hope this isn't an internal issue because I know it's going to be like pulling teeth to get the dealership to open her up again for free.

mustangrebuilder · June 3rd, 2008, 11:36 PM

if you take the tune out., your car with be fine, the VCT will pull enought timing so nothing will be hurt, if the car idles good then you know its the tune, if not then its somehitng else

mustangrebuilder · June 3rd, 2008, 11:39 PM

yeah its possible that a vacuum line could be off, cause you said it fine at cruising but not at idle, the car needs more air when you are cruising or wot so the car just thinks its fine, but does the car hesitate when you go to step on it???

BLACJAC · June 3rd, 2008, 11:44 PM

mustangbuilder is right check all ur hoses especially the one from the cai to the valve cover , make sure its on tight and there are no tears or holes in it

tribaltek · June 3rd, 2008, 11:45 PM

Well, I haven't really stepped on it yet because I didn't want to take it to rough at first. Wasn't sure if there was some sort of break in period or anything. Also, its raining like hell, so I can' really get traction.

So you think I should "Return to stock" with my XCAL and see if the issue persists?

tribaltek · June 3rd, 2008, 11:46 PM

I'm going to go check this right now.

Originally Posted by BLACJAC

mustangbuilder is right check all ur hoses especially the one from the cai to the valve cover , make sure its on tight and there are no tears or holes in it

mustangrebuilder · June 3rd, 2008, 11:47 PM

yes, return it to stock, and see if it changes, if it does its your tune, if not it is something else.

and has for break in the shop should have run your car at 1500 rpm's for 20 mintues, if not i would have them buy me new cams!

tribaltek · June 3rd, 2008, 11:56 PM

I just checked anything and everything that looked like a vacuum hose, and it all appeared normal to me.

They were running the car at about that RPM for about 20 mins while I waited for finalization of paperwork, so I assume they are broke in.

Why am I starting to regret getting these installed at the dealership now? Uggghhh...

mustangrebuilder · June 4th, 2008, 12:03 AM

ok at least the broke them in right.

i dont EVER bring my car to the dealership. i do ALL my own work on my car, yeah it is a 2006 mustang gt, but whatever, got to learn it sometime, and being 18 i have learned alot working on my own car/parents cars.

can you return it to stock tonight???

JakeM · June 4th, 2008, 12:03 AM

Did you have your LT's installed at the same time? If so, did you tell doug about this change as well?

tribaltek · June 4th, 2008, 12:06 AM

I will return it to stock tomorrow morning and verify. My neighbors are probably already pissed off at me enough tonight...

Towelly - My long tubes are not installed yet. The tune I am using is for stock exhaust manifolds.

June 3rd, 2008, 11:04 PM	#1
tribaltek Hardcore Enthusiast Join Date: Feb 2008 Location: Detroit Posts: 2,508 iTrader: 1 reviews	Surging at idle with FRPP Hot Rod Cams I need some serious input here... So I got the cams installed today, and flashed the car with Bamachips 93 Race tune (made for the FRPP cams), and while it does run good at speed, during idle it almost stalls. It goes from around 700 RPM down to 400 RPM and back... continually... just surging and surging. My lights even dim when it gets down to the low end. Also, when I'm cruising at speed and then put it in neutral to slow down because of a red light or whatever, the idle drops down to about 250 RPM and then goes back up to about 500 RPM... where it stays just fine, miraculously, until I stop completely, then its back to the surging. What the hell does all of this mean?!?! __________________ '06 Whipple'd Mustang GT (Coming Soon) '02 Supercharged Harley-Davidson F-150 (Sold) '05 Mustang GT (Sold)

June 3rd, 2008, 11:07 PM	#2
tribaltek Hardcore Enthusiast Join Date: Feb 2008 Location: Detroit Posts: 2,508 iTrader: 1 reviews	I emailed Doug to see if he has any insight into this. Until then, if anyone has any ideas, let me know. __________________ '06 Whipple'd Mustang GT (Coming Soon) '02 Supercharged Harley-Davidson F-150 (Sold) '05 Mustang GT (Sold)

June 3rd, 2008, 11:26 PM	#5
prinzzz Regular Join Date: Dec 2007 Posts: 92 iTrader: 0 reviews	cam phasers? __________________ 07 gt-20"maas/toyo t1r-frpp handling pac-frpp drag pac/3.55-manual-frpp x pipe and exhaust-frpp headershurst short throw shifter-frpp/whipple 500hp twin screw kit, cervinis ram air iv, mcleod twin disc clutch, billet flywheel, zex 75/175 shot

June 3rd, 2008, 11:27 PM	#6
tribaltek Hardcore Enthusiast Join Date: Feb 2008 Location: Detroit Posts: 2,508 iTrader: 1 reviews	Let me clarify by stating that I did not install the cams myself. I had a FRPP dealer install the cams. I wouldn't know how to check timing, and I don't know how to check cam phasers (or even know what they are). __________________ '06 Whipple'd Mustang GT (Coming Soon) '02 Supercharged Harley-Davidson F-150 (Sold) '05 Mustang GT (Sold)

June 3rd, 2008, 11:28 PM	#7
BLACJAC Regular 2006 GT 13.69 Join Date: Mar 2007 Location: Milford Ct. Posts: 437 iTrader: 0 reviews	tune sounds like the tune isnt hooking up with the camms properly. the timing is controlled by our computer, via ur new tune , doug should have a cure for this __________________ BORLA STINGERS,FORD RACING GEARS 3:73/,AIRAID CAI ,vast int. & ext. JEWELRY

June 3rd, 2008, 11:25 PM	#3
mustangrebuilder Enthusiast Join Date: Sep 2006 Posts: 991 iTrader: 0 reviews	im thinking you should check your timing.

June 3rd, 2008, 11:30 PM	#8
mustangrebuilder Enthusiast Join Date: Sep 2006 Posts: 991 iTrader: 0 reviews	well you should make sure they broke the cams in right and the timing can be off one tooth. if you cam phasers were not reinstalled you would know

June 3rd, 2008, 11:31 PM	#9
mustangrebuilder Enthusiast Join Date: Sep 2006 Posts: 991 iTrader: 0 reviews	yes it could be from the tune, take you tune off and see how the car runs

June 3rd, 2008, 11:36 PM	#10
tribaltek Hardcore Enthusiast Join Date: Feb 2008 Location: Detroit Posts: 2,508 iTrader: 1 reviews	OK, I can try that in the morning. I was searching for more possible causes of surging and read something about vacuum lines. Any thoughts on that? I just really hope this isn't an internal issue because I know it's going to be like pulling teeth to get the dealership to open her up again for free. __________________ '06 Whipple'd Mustang GT (Coming Soon) '02 Supercharged Harley-Davidson F-150 (Sold) '05 Mustang GT (Sold)

June 3rd, 2008, 11:39 PM	#12
mustangrebuilder Enthusiast Join Date: Sep 2006 Posts: 991 iTrader: 0 reviews	yeah its possible that a vacuum line could be off, cause you said it fine at cruising but not at idle, the car needs more air when you are cruising or wot so the car just thinks its fine, but does the car hesitate when you go to step on it???

June 3rd, 2008, 11:44 PM	#13
BLACJAC Regular 2006 GT 13.69 Join Date: Mar 2007 Location: Milford Ct. Posts: 437 iTrader: 0 reviews	hoses mustangbuilder is right check all ur hoses especially the one from the cai to the valve cover , make sure its on tight and there are no tears or holes in it __________________ BORLA STINGERS,FORD RACING GEARS 3:73/,AIRAID CAI ,vast int. & ext. JEWELRY

June 3rd, 2008, 11:45 PM	#14
tribaltek Hardcore Enthusiast Join Date: Feb 2008 Location: Detroit Posts: 2,508 iTrader: 1 reviews	Well, I haven't really stepped on it yet because I didn't want to take it to rough at first. Wasn't sure if there was some sort of break in period or anything. Also, its raining like hell, so I can' really get traction. So you think I should "Return to stock" with my XCAL and see if the issue persists? __________________ '06 Whipple'd Mustang GT (Coming Soon) '02 Supercharged Harley-Davidson F-150 (Sold) '05 Mustang GT (Sold)

June 3rd, 2008, 11:47 PM	#16
mustangrebuilder Enthusiast Join Date: Sep 2006 Posts: 991 iTrader: 0 reviews	yes, return it to stock, and see if it changes, if it does its your tune, if not it is something else. and has for break in the shop should have run your car at 1500 rpm's for 20 mintues, if not i would have them buy me new cams!

June 3rd, 2008, 11:56 PM	#17
tribaltek Hardcore Enthusiast Join Date: Feb 2008 Location: Detroit Posts: 2,508 iTrader: 1 reviews	I just checked anything and everything that looked like a vacuum hose, and it all appeared normal to me. They were running the car at about that RPM for about 20 mins while I waited for finalization of paperwork, so I assume they are broke in. Why am I starting to regret getting these installed at the dealership now? Uggghhh... __________________ '06 Whipple'd Mustang GT (Coming Soon) '02 Supercharged Harley-Davidson F-150 (Sold) '05 Mustang GT (Sold)

June 4th, 2008, 12:03 AM	#18
mustangrebuilder Enthusiast Join Date: Sep 2006 Posts: 991 iTrader: 0 reviews	ok at least the broke them in right. i dont EVER bring my car to the dealership. i do ALL my own work on my car, yeah it is a 2006 mustang gt, but whatever, got to learn it sometime, and being 18 i have learned alot working on my own car/parents cars. can you return it to stock tonight???

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June 4th, 2008, 12:06 AM	#20
tribaltek Hardcore Enthusiast Join Date: Feb 2008 Location: Detroit Posts: 2,508 iTrader: 1 reviews	I will return it to stock tomorrow morning and verify. My neighbors are probably already pissed off at me enough tonight... Towelly - My long tubes are not installed yet. The tune I am using is for stock exhaust manifolds. __________________ '06 Whipple'd Mustang GT (Coming Soon) '02 Supercharged Harley-Davidson F-150 (Sold) '05 Mustang GT (Sold)

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