jinx44 Posted January 17, 2005 Report Share Posted January 17, 2005 I was asking because the rockets made a HUGE amount more power when I first pulled them, but the pipes were still cold even though the engine was warm. I think the rockets showed about 6HP more than the CPI's through the mid when they were cold. My CPI's ended up making 5-6HP more than the rockets on top. I just wanted to make sure your test was accurate. Let's set up a time for me to come up there. I need to test these Shearers on a dyno anyway and you will be welcome to try them if you want. It should take me less than an hour on the dyno. Quote Link to comment Share on other sites More sharing options...
racer Posted January 18, 2005 Report Share Posted January 18, 2005 bump...oh yea, cole is gay..hehehe 307637[/snapback] dont you have some hills to climb or some shit? Quote Link to comment Share on other sites More sharing options...
locogato11283 Posted January 18, 2005 Author Report Share Posted January 18, 2005 I was asking because the rockets made a HUGE amount more power when I first pulled them, but the pipes were still cold even though the engine was warm. I think the rockets showed about 6HP more than the CPI's through the mid when they were cold. My CPI's ended up making 5-6HP more than the rockets on top. I just wanted to make sure your test was accurate. Let's set up a time for me to come up there. I need to test these Shearers on a dyno anyway and you will be welcome to try them if you want. It should take me less than an hour on the dyno. 307955[/snapback] yea i see what you are saying. i made sure the testing was same for both so i could get accurate numbers. each pull showed the same thing. well how about when my bro gets his engine back? hopefully in less than a month. i would really like to try them shearers and im sure my builder would like to check it out as well. we will set something up when he gets his engine back.. cole, you are still gay.. Quote Link to comment Share on other sites More sharing options...
racer Posted January 18, 2005 Report Share Posted January 18, 2005 maybe some concrete to pour? Quote Link to comment Share on other sites More sharing options...
sanddevil111 Posted January 18, 2005 Report Share Posted January 18, 2005 well boys and girls here it is. CPI vs rockets. went to the dyno today to see the difference and it came out like i thought it would. there were about 20 guys there and they were VERY surprised, and disappointed. i even had a guy call my rockets "fugly". so after he saw this i rubbed it in that my "fugly" pipes make more fuckin power than his did...rocket made more hp and torque than the cpis. see for yourself. oh yea, it dynoed at 77.3 hp with the rockets and 74.2 with the cpis. cant remember exactly the difference on torque, i think it was right around 3 lbs. i also put the cr500 banshee on the dyno but for some reaosn it wouldnt read the rpm's right. once it got to 3800 rpm it wouldnt read anymore. the guy running the dyno said he never had that problem before and that hed get it fixed so i could bring it back and run it agian. at 3800 rpm when the dyno quit reading it was making 60 hp. i figure it revs out somewhre around 8000 rpm or so. i figure that thing is making some pretty good hp. 307276[/snapback] not to rag on your rockets or anything cus I love them and had I known they even exhisted before i gotmy cpi's I might have bought them but if you didnt notice the cpi seems to get out of the hole alot better power wise so Im thinkin even though the rockets are a little more powerful I still think it would be pretty damn close either way cus it looks like the cpi banshee would pull a little better off bottom like maybe a quad length and then the rocket banshee would catch up and then pretty much stay the same after that ....thats just my opinion tho Quote Link to comment Share on other sites More sharing options...
locogato11283 Posted January 18, 2005 Author Report Share Posted January 18, 2005 not to rag on your rockets or anything cus I love them and had I known they even exhisted before i gotmy cpi's I might have bought them but if you didnt notice the cpi seems to get out of the hole alot better power wise so Im thinkin even though the rockets are a little more powerful I still think it would be pretty damn close either way cus it looks like the cpi banshee would pull a little better off bottom like maybe a quad length and then the rocket banshee would catch up and then pretty much stay the same after that ....thats just my opinion tho 308465[/snapback] they are both really good pipes. i just have always preferred the rockets cuz i like how they look better. in this case the rockets out pulled the cpis, but in other engines it could go either way. Quote Link to comment Share on other sites More sharing options...
23champ Posted January 19, 2005 Report Share Posted January 19, 2005 If it were a drag race, I don't think the cpi's would have an advatage at all by coming on 500 rpm sooner. I don't know about you, but when I'm dragg racing my motor is far from ever touching 5000 rpm. Loco, I'm pissed. I just ordered a set of CPI's last week. Quote Link to comment Share on other sites More sharing options...
locogato11283 Posted January 19, 2005 Author Report Share Posted January 19, 2005 If it were a drag race, I don't think the cpi's would have an advatage at all by coming on 500 rpm sooner. I don't know about you, but when I'm dragg racing my motor is far from ever touching 5000 rpm. Loco, I'm pissed. I just ordered a set of CPI's last week. 308683[/snapback] yea im with you, mine is already past 5000 when im racing. too bad man, i think youd like the rockets whats goin on with your bike anyway? pulled the cylinders yet? Quote Link to comment Share on other sites More sharing options...
Ducman Posted January 19, 2005 Report Share Posted January 19, 2005 Just curious is this SAE HP #'s or actual HP measured? Anybody that looks at a pair of chromed out Rockets and says their ugly is full of shit. CPI's and Rockets both look nice and somwhat similar. I dynoed last weekend and everybody was drooling over the rockets. Most people guess or ask if they are CPI. My dyno experience was kinda crappy though. The banshee pattern rims with dyno tires were jacked up so I had to use stock nobbies and it was kinda pointless because the tires would shake and smoke soo bad that I dont think the top of the curve was any where near accurate. Anyway my curve looked more like the CPI curve with a cammel hump at the top with one peak at around 9K and another a bit higher at 11K but I think that the second peak may have been when the tire shake smoothed out. My tires were smoking and sredded by the end of the dyno session. I thought about it later but it I should have put a bunch more air in the tires to stiffen them up. If you have to strap the bike down real hard and the tire squish real bad, then the tires want to grow in dia by about 3 - 4 inches but there all bound up so they shake because they are forced to be all out of round and the nobbies get all bound up. I only hit 57 HP SAE but the builder/owner of the dyno said that it was loosing at least 5hp from the tires. The sniffer was working to check the jetting though which was my main objective and they were good, just slightly lean at between 13:1 to 13.8:1. I didn't mess with jettng or timing because I was comming off a long night shift and there were a bunch of people behind me. The YFZ 450's getting full systems jetted in were only getting about 42-43hp so I didn't feel too bad. Quote Link to comment Share on other sites More sharing options...
Ducman Posted January 19, 2005 Report Share Posted January 19, 2005 I don't see any advantage in the CPI's comming on earlier because they are dipping a lot worse from 5K to 6.5K and the rockets come on at about 6K so the power actually comes on earlier with the rockets. The curve below that doesn't mean much becase your only at 15 hp or so the differences are neglidgeable. In this case Rockets are clearly better in every aspect on Loco's motor. But like we've already seen, it can go either way between CPI and Rockets depending on the motor. Quote Link to comment Share on other sites More sharing options...
Nighty Posted January 19, 2005 Report Share Posted January 19, 2005 Well i would love to see a comparission with toomey t5's. I cant believe i'm the first one to mention these pipes!. Great work loco! verry cool. Quote Link to comment Share on other sites More sharing options...
Minkia38 Posted January 19, 2005 Report Share Posted January 19, 2005 I have a like new set sitting right here right now! I'll ship if anyone can test! by the way - they are for sale, T5, chrome, like new Quote Link to comment Share on other sites More sharing options...
23champ Posted January 19, 2005 Report Share Posted January 19, 2005 yea im with you, mine is already past 5000 when im racing. too bad man, i think youd like the rockets whats goin on with your bike anyway? pulled the cylinders yet? 308702[/snapback] yeah, I pulled the cylinders about a week ago, they should be to there destination by now. I gettin ready to call him right now to ask him if they've arrived. By the way I heard through the "Grape Vine" Charlie isn't runnin quads next year. I guess Travis's little spill over the first jump freeked him out. Charlie's a homo. Quote Link to comment Share on other sites More sharing options...
locogato11283 Posted January 20, 2005 Author Report Share Posted January 20, 2005 yeah, I pulled the cylinders about a week ago, they should be to there destination by now. I gettin ready to call him right now to ask him if they've arrived. By the way I heard through the "Grape Vine" Charlie isn't runnin quads next year. I guess Travis's little spill over the first jump freeked him out. Charlie's a homo. 309084[/snapback] sweet, lemme know what happens with your cylinders. yep, ron talked to charlie and he said that he is absoultely not running quads so dont ask or anything. that guy is a fuckin douche bag. hes gonna have 7 hillclimbs this year. man we would have 12 hillclimbs within an hour of each other, but no he wants to be gay. travis and that dumbass on the z400 are the cause of this. some people need to stay the fuck off the hill i guess. its pretty stupid cuz everytime ive been there ive seen several bikes go down. nighty, i already mentioned the t5s in a post a while back when i first dynoed my stuff. ducman, i think this measures actual hp, but dont quote me on that. im also in agreement with rockets totally outperforming cpis this time. but like u said, it could go either way on another engine. we will soon find out! Quote Link to comment Share on other sites More sharing options...
Nighty Posted January 20, 2005 Report Share Posted January 20, 2005 Cool Loco, I'll do a search for your post. t5's SWEEET Quote Link to comment Share on other sites More sharing options...
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