HKS Hiper adds mpg! (added pics)
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HKS Hiper adds mpg! (added pics) This thing is pretty sweet!! I bought it off a member off this site (ohmysac) for $125 shipped. No scratches, used for 8K miles, but pretty rusty where the welds are... Nothing wrong with the muffler itself. I've noticed a few improvements on my car, such as:
1) Daily driven, the car is A LOT less restrictive, very free flow now...
2) The RPMs climb up faster
3) On a full tank of gas, I got 340 miles (10gallons = 340 mpg). My car is stock and the max I've gotten is 32mpg, and thats on a good day. I usually average about 30-30.5 mpg. So when I saw that I got 34, I was really surprised...
The only wierd thing is that my RPMs do climb higher, but my speed is lower. I used to reach 3000 rpm and be at exactly 20mph. Now I'm at 3K+ and I'm not even at 20mph yet. Anybody know wussup? Other than that the exhaust sounds nice, not too loud... I couldn't imagine anything louder than that or else I'd go crazy.
1) Daily driven, the car is A LOT less restrictive, very free flow now...
2) The RPMs climb up faster
3) On a full tank of gas, I got 340 miles (10gallons = 340 mpg). My car is stock and the max I've gotten is 32mpg, and thats on a good day. I usually average about 30-30.5 mpg. So when I saw that I got 34, I was really surprised...
The only wierd thing is that my RPMs do climb higher, but my speed is lower. I used to reach 3000 rpm and be at exactly 20mph. Now I'm at 3K+ and I'm not even at 20mph yet. Anybody know wussup? Other than that the exhaust sounds nice, not too loud... I couldn't imagine anything louder than that or else I'd go crazy.
Last edited by SVongkasem; Oct 6, 2003 at 09:52 PM.
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Re: HKS Hiper adds mpg!
Originally posted by SVongkasem
The only wierd thing is that my RPMs do climb higher, but my speed is lower. I used to reach 3000 rpm and be at exactly 20mph. Now I'm at 3K+ and I'm not even at 20mph yet. Anybody know wussup?
The only wierd thing is that my RPMs do climb higher, but my speed is lower. I used to reach 3000 rpm and be at exactly 20mph. Now I'm at 3K+ and I'm not even at 20mph yet. Anybody know wussup?
I dunno tho.
I'm actually really interested to see what's going on.
interesting ... 3000 rpm in 1st gear and you hit 20 mph?...
here are my speeds at 3k rpm:
1 - 15
2 - 26
3 - 38
4 - 49
5 - 61 (?? ... I don't remember)
my speeds at 7000 rpm:
1 - 34
2 - 58
3 - 89
4 - ? (somewhere over 105)
5 - ?
here are my speeds at 3k rpm:
1 - 15
2 - 26
3 - 38
4 - 49
5 - 61 (?? ... I don't remember)
my speeds at 7000 rpm:
1 - 34
2 - 58
3 - 89
4 - ? (somewhere over 105)
5 - ?
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Rep Power: 0 Yeah, I checked again today and at 3300-3500 RPM I'm barely at 20mph. I used to hit 3000 and be exactly at 20mph. Its wierd, but doesn't really bother me. I just notice that its a big change in the characteristics of my car, just by adding an axle-back. Apparently its better, since I'm getting better gas mileage. I'll wait until my current tank hits empty again, then I'll be certain whether its the exhaust or not. Another wierd thing is that right after I got my exhaust I was driving more aggressively (taking it up to 6800 rpm, downshifting on the freeway), and I still got better gas mileage. Maybe shifting at higher rpms is the solution to gas mileage, as opposed to how I used to drive "like a grandpa."
Also, I have 205/40/17, and since the diameter is slightly smaller than the stock wheels, the speedometer isn't totally correct. For example it may say I'm doing 20mph, but since my wheels spin faster, I'm probably only doing about 18mph...
Also, I have 205/40/17, and since the diameter is slightly smaller than the stock wheels, the speedometer isn't totally correct. For example it may say I'm doing 20mph, but since my wheels spin faster, I'm probably only doing about 18mph...
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Rep Power: 0 Yeah, the angle is really convenient... Although my car isn't THAT lowered, I still have a tendency to scrape in some places, so there is already an advantage of the muffler being angled. If I don't think I'll make it over the speedbump or dip or whatever, I'll just turn to the left and go over it sideways. I've nipped the bottom twice only b/c I wasn't used to driving with it yet.
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Rep Power: 372 Nice... I pick up my HKS Hi Power this Saturday... hopefully it doesn't hang much lower then my current exhaust otherwise I smell a disaster. 
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Rep Power: 0 There really is no way for your RPMS to be at a different speed then they were before, unless...
1.) Your clutch is slipping, which means that you need to get a new clutch plate.
2.) You changed your wheels at the same time you changed your exaust...
Besides those 2, there's NO WAY, for your RPMS to be at a higher or lower amount then they were before. It's physically impossible.
1.) Your clutch is slipping, which means that you need to get a new clutch plate.
2.) You changed your wheels at the same time you changed your exaust...
Besides those 2, there's NO WAY, for your RPMS to be at a higher or lower amount then they were before. It's physically impossible.
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Rep Power: 529 I'm gonna have to agree with Renamazazo. Your RPM and speed is a mechanical function. Airflow and such does not affect it. Wheel size would affect it, as would changing the gearing of your car.
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Rep Power: 0 Ya Sidney the muffler looks pretty sic. Im thinking about gettin a muffler for my car but thats after i get a paintjob. Is there anyway u can get an audio clip of it or am i gonna have to hear it in person? lol. Maybe Ill see you at Qualcomm sometime if we are ever down there.
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Rep Power: 372 Originally posted by 94civicsedan
Ya Sidney the muffler looks pretty sic. Im thinking about gettin a muffler for my car but thats after i get a paintjob. Is there anyway u can get an audio clip of it or am i gonna have to hear it in person? lol. Maybe Ill see you at Qualcomm sometime if we are ever down there.
Ya Sidney the muffler looks pretty sic. Im thinking about gettin a muffler for my car but thats after i get a paintjob. Is there anyway u can get an audio clip of it or am i gonna have to hear it in person? lol. Maybe Ill see you at Qualcomm sometime if we are ever down there.
Originally posted by 2k1civic
Last I checked we had a 12 gallon tank at least the LX does, and I regularly get 400+ miles on a tank.
Last I checked we had a 12 gallon tank at least the LX does, and I regularly get 400+ miles on a tank.
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Rep Power: 0 Man that sucks sorry to hear that. I dont know if my 18" wheels and intake make much of a difference. I use regular 87 octane gas too.
Originally posted by cryption
I've NEVER gotten over 240miles to a tank .. and thats even with 100% freeway driving ... 5thgear at 70mph ... man my car is the gay on gas mileage
I've NEVER gotten over 240miles to a tank .. and thats even with 100% freeway driving ... 5thgear at 70mph ... man my car is the gay on gas mileage
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I Queef > You
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Rep Power: 0 Well our tanks can hold 13.7 gallons. However, your gas light must come on at around 10-11 gallons, so people wont drive until the last drip of gas... You have 18"s and and intake and you're pulling 400+??? dayam, what kind of stuff is your car smoking and let my car puff some!!! haha
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thats an awesome exhaust i really like it and how it is slanted. anyone know where you can buy one of those?
