VICARA Posted November 23, 2014 Author Share Posted November 23, 2014 I also think DAM is the best looking exhaust and I'm getting the side panniers so I'm getting new pipe soon as an excuse that delkevic was only $40.00 at local Craigslist and gives me time for the long waiting time to get the DAM and if I didn't want the panniers I really like this cheap fix. Link to comment Share on other sites More sharing options...
Fasty Posted November 24, 2014 Share Posted November 24, 2014 anyone knows wht pipe gives best engine results??? if i look i see i can find pipes from 300till 1000€... what is the effect in Hp of those pipes iff i m not wrong akra gives +13Hp... other pipes +-9a10 Hp, is this proven? Link to comment Share on other sites More sharing options...
iamzombie Posted November 24, 2014 Share Posted November 24, 2014 No slipon is going to give you anywhere near 13hp. Akra gives 4kw aka 5.3hp (http://www.akrapovic.com/#!/motorcycle/product/road/311?brandId=30&modelId=139&yearId=618) Two Bros is 5.02hp (http://www.twobros.com/sku/005-28704/exhaust/Hon-VFR1200_SO_10.html) a FULL system might give you 10-15hp, but no slipon will. Link to comment Share on other sites More sharing options...
satariel Posted November 24, 2014 Share Posted November 24, 2014 Tru, +8HP at most. No need to develop a full header for vfr1200 as the stock is quite good enough - just get rid of the catalityc converter. Link to comment Share on other sites More sharing options...
Member Contributer luvtoleanit Posted November 24, 2014 Member Contributer Share Posted November 24, 2014 All slip-on exhausts are more or less going to be the same power wise. You want to add power, get rid of the cat. Link to comment Share on other sites More sharing options...
Fasty Posted November 24, 2014 Share Posted November 24, 2014 they omd me cat woud n t do much becouse they are verry well build Link to comment Share on other sites More sharing options...
f3racer Posted November 24, 2014 Share Posted November 24, 2014 who's "they"? the The cat is a big restriction. Link to comment Share on other sites More sharing options...
Fasty Posted November 24, 2014 Share Posted November 24, 2014 they= don guhl...he told me cat is not much... any people who have resolts before/after decat? Link to comment Share on other sites More sharing options...
Member Contributer hvfrdave Posted November 24, 2014 Member Contributer Share Posted November 24, 2014 After market slip-on, will give you around 5 bhp, the removal of the cat, will give you approx. 10 bhp. The Honda Headers are very good, no need for a full aftermarket exhaust system. Remove the cat and use either the Akropovic LeoVince, 2 brothers or similar, the longer the slip-on, the better. Then get a map tailor made to suit, on a dyno, with either a PCV, or a Bazzaz fueling modual. I have since done 6 VFR1200's, and on average they have gained 18bhp, and the torque is up to around 95-96 lbsft. Link to comment Share on other sites More sharing options...
Fasty Posted November 24, 2014 Share Posted November 24, 2014 bhp=rearwheelpower? or crancshaft? now after flash 161rwhp +-185 crancshaft, u think of 18hp extra with decat+ endcan? Link to comment Share on other sites More sharing options...
Member Contributer hvfrdave Posted November 24, 2014 Member Contributer Share Posted November 24, 2014 On average [DIN]164bhp at the wheel, mine is actually [DIN]167bhp at the wheel. [sAE]163bhp. Link to comment Share on other sites More sharing options...
Fasty Posted November 24, 2014 Share Posted November 24, 2014 after flash i got 160.8 at wheel...dont know if it is same standard as yours (din/sae) do you think decat/slipon/pcv give me +15Hp? Link to comment Share on other sites More sharing options...
Member Contributer hvfrdave Posted November 24, 2014 Member Contributer Share Posted November 24, 2014 160.8bhp with a standard exhaust, just not possible. Standard my VFR1200 was [DIN] 150bhp [sAE] 147.4bhp Link to comment Share on other sites More sharing options...
Fasty Posted November 25, 2014 Share Posted November 25, 2014 Dyno my bike original. got 152rwp+15% seems pretty close to specs of the bike original. Now after flash with knn filter else no mods. I got 160.8. You can discuss the accuracy off the bench but aldo i i gaind 9hp...or am i wrong Link to comment Share on other sites More sharing options...
Member Contributer hvfrdave Posted November 25, 2014 Member Contributer Share Posted November 25, 2014 Hey ho, if that's what you believe, that's fine, so with the mods on average 18bhp, = 178bhp at the rear wheel, No chance. Link to comment Share on other sites More sharing options...
satariel Posted November 25, 2014 Share Posted November 25, 2014 Hey ho, if that's what you believe, that's fine, so with the mods on average 18bhp, = 178bhp at the rear wheel, No chance. I've seen something like this happened before. It depends how the engine was brake-in. Must also admit hes result seems to be "too lucky". Link to comment Share on other sites More sharing options...
f3racer Posted November 25, 2014 Share Posted November 25, 2014 well.. i'll never say impossible but its definately improbable that you get those numbers. I got 151 SAE at the rear wheel with a slip on and cat delete. Link to comment Share on other sites More sharing options...
f3racer Posted November 25, 2014 Share Posted November 25, 2014 an interesting read on dyno's and HP http://www.factorypro.com/dyno/true1.html Link to comment Share on other sites More sharing options...
Member Contributer luvtoleanit Posted November 25, 2014 Member Contributer Share Posted November 25, 2014 On average [DIN]164bhp at the wheel, mine is actually [DIN]167bhp at the wheel. [sAE]163bhp. Same here, 167 at the rear wheel. Link to comment Share on other sites More sharing options...
Fasty Posted November 25, 2014 Share Posted November 25, 2014 I m open for discussion. Not famillyair with dyno and stuff but how you ecplane 5runs with ecact same result? 5before flash. 5after. How do we explain the difference then? Link to comment Share on other sites More sharing options...
iamzombie Posted November 25, 2014 Share Posted November 25, 2014 Are all 10 of these runs done on the same dyno machine? If so, there's your answer. Not all dyno's return the same results. Go have a run done on a different brand of machine, I bet the numbers are different. Link to comment Share on other sites More sharing options...
f3racer Posted November 25, 2014 Share Posted November 25, 2014 Altitude, humidity, air density, temperature. All have a factor in dyno runs. Also some synod run differently. Mustang dynos run consistently lower than others. We are not calling you a liar, we are saying that your numbers are off somehow. Link to comment Share on other sites More sharing options...
CandyRedRC46 Posted November 25, 2014 Share Posted November 25, 2014 technically i belive the flash alone should not make any power in fourth gear, which is the gear you are supposed to be in for dyno tuning.... Link to comment Share on other sites More sharing options...
satariel Posted November 25, 2014 Share Posted November 25, 2014 The problem is he did the run before with the good and resonable result. Then he used the same dyno and got what he got. I would not discreditate him completely folks... Hes numbers may be HIGH but the increase can not be questioned. He gained the 8-9HP but was it 140 or 150 stock we shall never know. Seems like all the driveshafts generate averagely 15% of drivetrain loss. 150HP on average, is what every bike test or magazine got during the test. Again, hes first result seems to be ok since everyone else have had the same. Seems resonable when you do a simple math. 115% from 150HP gives 172,5 as the crank result so getting the 180 crank power after just a reflash works for me and , I supose for everyone else. The fact the other got 8hp even more after removig the cat seems also resonalbe. Maybe 170 wheel is an absolotely max power which you can get using the stock injectors, stock intake assembly and stock headers? Maybe those of you who reached the 167 will never go further with stock components? technically i belive the flash alone should not make any power in fourth gear, which is the gear you are supposed to be in for dyno tuning.... Why the 4th? Link to comment Share on other sites More sharing options...
Fasty Posted November 25, 2014 Share Posted November 25, 2014 ok, some dynos may be different but you can t go around the incrase!! Link to comment Share on other sites More sharing options...
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