Modifications Help Needed....I Am Lost!!!!
Thread Starter
Instructor
Joined: Nov 2001
Posts: 130
Likes: 0
From: Germantown MD
Modifications Help Needed....I Am Lost!!!!
Okay,
My C5 is bone stock...and it came with that Northeast/California Emissions RPO code. I do nto know what this means.
But, I am buying an XR-1 Exhaust, possibly an X-Pipe, and either the Halltech or Breathless Performance "394 HP" package for my C5. My question is do I need something like a Hypertech Power Programmer (or something) to readjust the Air to Fuel mixture and or to reprogram the system for the added modifications? I have heard all sorts of stuff on this topic and do not know what to do.
Can I be sure to get rid of any restricting emissions programs or junk as well? I want to do this right.
Please Advise,
John
My C5 is bone stock...and it came with that Northeast/California Emissions RPO code. I do nto know what this means.
But, I am buying an XR-1 Exhaust, possibly an X-Pipe, and either the Halltech or Breathless Performance "394 HP" package for my C5. My question is do I need something like a Hypertech Power Programmer (or something) to readjust the Air to Fuel mixture and or to reprogram the system for the added modifications? I have heard all sorts of stuff on this topic and do not know what to do.
Can I be sure to get rid of any restricting emissions programs or junk as well? I want to do this right.
Please Advise,
John
Le Mans Master
Joined: Aug 2001
Posts: 6,725
Likes: 5
From: Colesville MD
Re: Modifications Help Needed....I Am Lost!!!! (x_rckstar)
In my opinion, you do not need to do any reprograming with these basic bolt ons. I do have one insight though. You didn't mention if your car was automatic or manual. If auto, the Powerloader or Hypertech can help with shift points and firmness. On a 6 speed, gains are less. Best of luck.
Greg
:cool:
Greg
:cool:
Melting Slicks
Joined: Jan 2001
Posts: 3,224
Likes: 0
From: Tulsa OK
Re: Modifications Help Needed....I Am Lost!!!! (gmatson)
Are you sure an x-pipe will fit with the XR-1 system? Someone will chime in here soon... for some reason I thought an x-pipe couldn't go on with an XR-1 system. :)
Patrick :seeya
Patrick :seeya
Thread Starter
Instructor
Joined: Nov 2001
Posts: 130
Likes: 0
From: Germantown MD
Re: Modifications Help Needed....I Am Lost!!!! (gmatson)
My C5 is a manual. So, the Hypertech will do nothing for me there:-)
But, will the Hypertech help the Air to Fuel calibration?
Regards,
JC
But, will the Hypertech help the Air to Fuel calibration?
Regards,
JC
Melting Slicks
Joined: Mar 2001
Posts: 2,117
Likes: 1
From: El Paso TX
Re: Modifications Help Needed....I Am Lost!!!! (x_rckstar)
The best way to keep on top of air/fuel ratios is to buy a MAF translator and a scan tool (Autotap, or Ease) and fine tune it that way. Or, you can go with a MAF that is rich by 5%. Not sure about the Hypertech helping with air/fuel ratios. :chevy
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Race Director
Joined: Sep 2001
Posts: 13,292
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From: Hockessin Delaware
Re: Modifications Help Needed....I Am Lost!!!! (Patman36)
No X-pipe with the XR1. The system replaces the stock exhaust from before the "H" and back. The X pipe is used with the other, more popular exhausts - e.g. Corsa, which simply bolt on with the over - axle pipes. You have to cut the pipes with the borla. I think some here have used an X-pipe in place of the Borla resonator (muffler), which would make it essentially a straight pipe exhaust, which I think would be too much. The XR1 is just right as it is, in my opinion. Nice choice. :seeya
[Modified by DsC5, 11:01 PM 12/17/2001]
[Modified by DsC5, 11:01 PM 12/17/2001]
Race Director
Joined: Jan 2000
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From: Lynnfield MA
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Re: Modifications Help Needed....I Am Lost!!!! (x_rckstar)
Your on the right track IMHO... I would suggest also installing a new thermostat 172 - 178 degree unit and utilizing the Hypertech to lower the fan on temp... BTW, I have had good performance increases with my Hypertec Power Programmer installed. This is just my experience but others have not be as fortunate as me and stated no gains in performance...
Nick
Nick
Safety Car
Joined: Feb 2000
Posts: 3,683
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From: Austria
Re: Modifications Help Needed....I Am Lost!!!! (x_rckstar)
JC,
the hypertech has a tuningprogram, but I would not use it.
But I would buy a Hypertech anyway, if you wanna adjust revlimit, gears or tirehight.
I run my 98 C5 with Vortex and exhaust mods without any programming and it run good.
If you do more mods then you can dial in the air/fuel with the maf translator.
Michael
the hypertech has a tuningprogram, but I would not use it.
But I would buy a Hypertech anyway, if you wanna adjust revlimit, gears or tirehight.
I run my 98 C5 with Vortex and exhaust mods without any programming and it run good.
If you do more mods then you can dial in the air/fuel with the maf translator.
Michael