Fullsac Performance
Tourer
Joined: May 2007
Posts: 426
Likes: 0
From: Illinois
RE: Fullsac Performance
ORIGINAL: Gutman
The Fullsac system didn't do anything for the performance when you installed it. I have Dyno'd the three sets installed here and most made less power than original head pipe. with SERT only increased about 4 horse. No heat shield and so called ceramic coating come off inthe amount of time to test ride. Torres would be prefered. Don't compare a dual conversion kit with a true dual performance system. No comparison in price or performance. Pick your preference, not always cost.
The Fullsac system didn't do anything for the performance when you installed it. I have Dyno'd the three sets installed here and most made less power than original head pipe. with SERT only increased about 4 horse. No heat shield and so called ceramic coating come off inthe amount of time to test ride. Torres would be prefered. Don't compare a dual conversion kit with a true dual performance system. No comparison in price or performance. Pick your preference, not always cost.
"I have Dyno'd the three sets installed here and most made less power than original head pipe." Less power where? and how much less? What did each one do (worst to best)? I know the obvious answer to this but please, do share your findings.
"with SERT only increased about 4 horse" which is it 3, 4 or 5? About dont cut it when using a dynamometer. Also, what map? canned or custom? who tuned it, how long did they work on it?
"No heat shield and so called ceramic coating come off inthe amount of time to test ride" Fulsac reuses the factory HS, were the directions to reverse the two heat sheilds too complicated to follow? ceramic coating came off; should have been a warranty issue. what was the outcome?
"Don't compare a dual conversion kit with a true dual performance system. No comparison in price or performance." So is this again using a canned map or custom. Who tuned it, how long did they work on it and how much HP and Trq was gained (Not about, but actual would be prefered).
A "Dual Performance System" comes with matching slip-ons at a higher cost to the consumer. What slip-ons where you using when you dyno'd and got the "about 4 HP". How many different brands and sizes have you data logged? Have you flowed (using a flowbench) the rear head pipe from a "performance system" and compared that to the factory head pipe after the fulsac conversion? wouldnt that be a more fair assessment of whether the fulsac shows an increase without factoring in slip-ons, canned vs. custom maps and so on?
Tourer
Joined: Jan 2006
Posts: 279
Likes: 0
RE: Fullsac Performance
I put the fullsac TD kit on my 88. But I wasn't interested in a performance gain. I did it because I was sick and tired of welding my cracked H-pipe every few months and the kit was a lot cheaper than a new one. It's been on for a year and a half and I haven't had to weld up that ratty old pipe since - mostly because it's in the dumpster.
Road Master
Joined: Jan 2007
Posts: 790
Likes: 2
From:
RE: Fullsac Performance
ORIGINAL: FLuHX
What about the o2 sensor in the back pipe. Does the Fullsac accomodate that.
What about the o2 sensor in the back pipe. Does the Fullsac accomodate that.
Outstanding HDF Member
Joined: Jun 2007
Posts: 2,542
Likes: 2
From: Cocoa Beach, Florida
RE: Fullsac Performance
I wouldn't expect to see much HP gain by going from the stock head pipes with the "H" to after-market split dual head pipes. In fact, torque may well drop a little no matter which split dual set-up you go to since 2into1(on paper anyway) shouldflow a bit betterand the stock "H" setup ends up acting very much like a 2into1.
That said, I'm also not after more performance improvement (beyond PCIII with SEAC and V&H ovals) for now anyway. I am after bang for the $ on soundthough and split duals sound better to me.
The new link siflarsonposted shows an '07 setup with bungs for $300 so Torres folks have priced themselves out of the running. V&H Dresser Duals aren't all that much more and for a fewextra $, seem to be abetter choice. Fullsac is $190 though so......
That said, I'm also not after more performance improvement (beyond PCIII with SEAC and V&H ovals) for now anyway. I am after bang for the $ on soundthough and split duals sound better to me.
The new link siflarsonposted shows an '07 setup with bungs for $300 so Torres folks have priced themselves out of the running. V&H Dresser Duals aren't all that much more and for a fewextra $, seem to be abetter choice. Fullsac is $190 though so......
Outstanding HDF Member
Joined: Jun 2007
Posts: 2,542
Likes: 2
From: Cocoa Beach, Florida
RE: Fullsac Performance
I just thought of a related(?) question...
I have PCIII installed in my '07so aren't sensorsan option now (at least here in FL)? Thesensorsarestill installed in my stock pipesbut I believe (from what I see in other threads) that they are notused at all with PCIII. If that's right, then it might reduce Fullsac cost even more to just leave them in the stock pipes and go "bungless".
Sorry for potential hijack,not my intent, just hope for some clarification on Fullsac option.
I have PCIII installed in my '07so aren't sensorsan option now (at least here in FL)? Thesensorsarestill installed in my stock pipesbut I believe (from what I see in other threads) that they are notused at all with PCIII. If that's right, then it might reduce Fullsac cost even more to just leave them in the stock pipes and go "bungless".
Sorry for potential hijack,not my intent, just hope for some clarification on Fullsac option.
Stellar HDF Member
Joined: Jun 2006
Posts: 2,457
Likes: 83
From:
RE: Fullsac Performance
SGTP- i see in your sig pic that you didnt 'flip' the heat shields. if you do, youll eliminate that cut-out portion where the "old" pipe joined the front header. simply reverse the shields so that each straight end meets and adjust accordingly at the muffler.
as far as the fullsac goes- it really is a great option for those of us who want true duals at a great cost and ease of installation. i wanted the balanced sound (and slight reduction of heat) when i installed mine (which took about an hour with a friend- 4 hands are better than 2)
as far as the fullsac goes- it really is a great option for those of us who want true duals at a great cost and ease of installation. i wanted the balanced sound (and slight reduction of heat) when i installed mine (which took about an hour with a friend- 4 hands are better than 2)
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Elite HDF Member
Joined: Jun 2006
Posts: 3,698
Likes: 10
From: Longview, Washington
RE: Fullsac Performance
ORIGINAL: RangeRat
I just thought of a related(?) question...
I have PCIII installed in my '07so aren't sensorsan option now (at least here in FL)? Thesensorsarestill installed in my stock pipesbut I believe (from what I see in other threads) that they are notused at all with PCIII. If that's right, then it might reduce Fullsac cost even more to just leave them in the stock pipes and go "bungless".
Sorry for potential hijack,not my intent, just hope for some clarification on Fullsac option.
I just thought of a related(?) question...
I have PCIII installed in my '07so aren't sensorsan option now (at least here in FL)? Thesensorsarestill installed in my stock pipesbut I believe (from what I see in other threads) that they are notused at all with PCIII. If that's right, then it might reduce Fullsac cost even more to just leave them in the stock pipes and go "bungless".
Sorry for potential hijack,not my intent, just hope for some clarification on Fullsac option.
Steve L.