 |
|
RM Racing |
| Cost |
$215 |
| Notes |
Black powder coated intake pipe with K&N cone filter; also has an application
for Legends with TCS (Traction Control System) |
| Application |
1991 - 1995 coupe
1991 - 1995 sedan |
| Pictures |
1991 coupe [Eric Wong]
1995 coupe [Jim Presley] |
| Web Page |
www.goodnet.com/~rmnsx/ |
Ben Lin [1992 coupe]
"Verdict? Thumbs up! After installing the intake kit, the car doesn't really feel any faster, but the numbers tell
the whole story. Prior to installing the intake, we did some test 0-60 runs with 3 passengers. The times were
consistently around 8.5 seconds in both directions. With the intake installed under similar conditions, the time
dropped to 8.0 - 8.1 seconds, depending on direction. No dyno run has been done, but the times would seem to
validate RM Racing's claims of about an increase of 10 hp. I've had the intake for about a month now, and I will
be making some more timed runs to see if I'm experiencing the problem of the car "getting used to" the intake and
having the ECU compensate and reduce power.
The most noticeable thing about the intake kit is the sound. From none to 1/3 throttle, there is no difference
from stock. From 1/3 to ½ throttle, there is a slight but noticeable rumble coming from underhood, and from
½ to full throttle, there is a pronounced growl. Under full throttle conditions, you hear the growl, but once
the tach hits 4,000 RPM, the sound suddenly amplifies into a mean wail. At about 5,500 RPM, the wail tapers off. Can't
explain why it does that, but it sounds nice.
What this means to normal driving conditions is that around town, you'll notice it, under hard accelerations or
climbing hills, it's even more noticeable, under full throttle, it can be obtrusive, and on the freeway, you won't
even know it's there.
Installation was fairly straightforward. If you are somewhat mechanically inclined, no instructions are needed
(RM Racing doesn't provide any). The only problem is that the filter might hit the fluid resevoir that is nearby,
but RM Racing says to just push the whole pipe assembly in until it doesn't touch the resevoir."
|
|
Eric Wong [1991 coupe]
"In all honestly, I didn't really notice any significant difference in the power after I had installed the intake.
Although when you jump on the gas at higher speeds, and it hits 4,000 rpm, I can feel a slight jolt of power push me
back into my seat complimented by a nice growl. I will dyno my car in a future date to see if my horsepower has increased.
I believe that the only way to really notice any difference with the intake is to add a set of headers and an exhaust.
That way it is one complete flow."
|
|
Jason Mello [1994 coupe]
"A week before I received the air intake system I was at a stop light, and a motorcycle pulls up with two guys dressed
in black leather, and sporting other tough guy apparel. I had my radio on so I couldn't hear exactly what they were
saying, but I could tell they were ragging on me (maybe because I'm young and my car cost more than their damn house).
Then the driver starts revving his engine ... I'm thinking 'Oh sh*t what is this guys problem?' I was always told that
motorcycles can destroy most cars in acceleration. I know my car is fast, but I assumed this f@#$ was faster. They
continue to make their comments to each other, and point and laugh. The light turns green and the two road warriors
take off. I didn't move for a few seconds, and then I thought I'll be damned if I'm going to let those two rejects from
the blue oyster (Police Academy reference) get the best of me. I start moving, and to my surprise I am gaining on them.
With in a few seconds we are neck, and neck...at this point the motorcycles engine sounds so incredibly loud I think it
is going to explode...then it happens my car kicks into fourth gear, and she crushed this little girly man! The best thing
was they weren't smiling anymore, but I was :-)
Ok now I got the new intake on, and I'm sitting in my driveway revving the engine (just making sure the connections are
tight), and I notice immediately that the engine sounds more powerful. So far so good...now for the test drive. There are a
few back roads around my house so I decided to test her out. I was hoping that the intake to increase my initial acceleration.
Normally when I accelerate from a stop she hesitates for a brief instant, and then she takes off. After installing the new
intake I notice she takes off with more power. She seems to have more power throughout acceleration. I'm very pleased with
my purchase, and it is a pretty cheap way to add 15 hp to your stock Legend. Before I added the R&M air intake system I was
getting between 18 to 19 miles to the gallon. After going through my first full tank of gas(with the new intake) I got 21 mpg.
I was pretty happy with this, but the next time I filled up I got 19 mpg. Why the difference? you might ask...I own two cars
and my Legend gets babied, but very seldom does she get to go on the highway for an extended amount of time."
|
|
Jeff Lane [1991 sedan]
"I saw the RM Racing intake mentioned on the performance page and had to give it a try. I called them up and they wanted
to know where I heard about this modification, so I told them from the Legend Web site. He was like, "Oh yeah, we get a
lot of requests because of that...". Dude, you should get paid for advertising! He said we only have one left, but it's
got the yellow filter top. I would rather have the black one, so he said he'd paint it for me. Cool. I waited over a week
for my new toy and when it finally arrived, wouldn't you know it, it was pouring out and I don't have a garage! Well, that
weekend, when it was nice again, I took out my non-mechanic toolkit and was ready for the installation. No instructions
come with this intake, but not to fear, it was really painless to install. The only minor thing to do is cut one of the
existing hoses to fit the new intake. Oh yeah, the o-clamps (I think that's what you call them), that you turn to tighten
the RM intake to the intake manifold don't or didn't have the slot for a screwdriver! I had to use some needle nose pliers
and tighten it up from a hard to reach location, but I guess no big deal.
Ok, the test drive... First check to make sure I haven't left the pliers on the shroud in the engine ... OK, get in and
turn the key, starts right up! No difference in sound or idle ... hmmm ... rev the engine ... much smoother and quicker!
All right, I'm out on the street in first gear takin it slow, listening for anything unusual, shift into second ... not
much of a difference ... did I waste my money? 3000, 3500rpms sounds good ... punch it ... 4000rpms growwWWLL getting
pushed into the seat ... red line just a second or two later, slam it into third ... chirp ... neighbors think I'm crazy
... engine howling ... grin on my face ... instant red line, fourth gear ... holy sh*t 85 and still got two gears left!
Let off ... coast ... heart beating a little fast ... well, real fast ... nice. Whew. Gotta take this out on the highway!
That was my street, man! Cool."
|
|
Kevin Cheng [1991 sedan]
"I have installed the RM Racing air intake for $210. After I have installed it and have a test drive, I found out
the intake system has given a better acceleration in the low-end. However, it suffers the high-end a lot. With
the regular intake system (stock), it gave me a rocket feel when I try to accelerate at highway speed. But after
installing the RM air intake. All of the feeling is gone. As the author mention of the improper setup, I guess
this is normal behavior."
|
|
Suwipin Martono [1992 coupe]
"It's reliable and it's quite fast, especially after i installed the RM Racing Air intake. Well, it doesn't
really improve the performance by a wide margin but it does give better acceleration and a more sporty sound.
Although sometimes I prefer not to have that sporty sound."
|
|
Tony [1991 sedan]
"The purchase of the air intake, although a little expensive, will pay for it self in the long run due to the
fact that you won't be buying any more of those $39 stock air cleaners. Even if you purchase say Fram or
Purolator units, they still cost $19 or so. The other thing I can say about the cost/usage is that if, and
only if, you can keep your foot out of the throttle for just about an entire tank full of gas, your will notice
an increase in mileage. My car was getting about 22 mpg in combined driving, some highway, some city, and some
wide open top end runs. With the RM Racing intake tube and K&N cone style filter the mileage went to 23-24 mpg
on average. Open road mileage went from 27½ to 29 mpg. So at least from my experience with this unit it plain
to see that its well worth it from a money stand point.
Next is performance, My car is a 1991 LS (automatic) sedan with 99,150 miles on the clock. The engine is a type
I (200 hp). As with all my cars that I have modified, I took it to a near by track to base line the car so that
I could see improvements or lack of with each thing that was modified. Some people think that the seat of the
pants feel will tell them every thing about how the car is running, believe me I have seen may a modification
seem to do better, i.e. make more noise, and the end result at the track be slower. Its always a good idea to go
to the drags, 60 foot time, 1/8 mile, and ¼ mile time as well as speed can give you lots of info. about
what you've just done to your car. Anyway, in stock form my Legend ran a best time of 16.007 at 87.9 mph and a
worst time of 16.29 at 87.2 mph (this was with varied launches etc). The car was run at night in cool 60 degree
weather with ¼ tank of gas. After adding the RM Racing intake, it was back to the track the very next
Friday night, the car was loaded with a full tank of gas, OOPS! Not an exact replication of car setup, but it
was quite a bit quicker and faster. The best run was 15.85 at 89.2 with a worst of 15.94 at 88.9. Thats not bad,
considering all that was changed was how the air enters the engine. The car weighs in at 3,610 lbs and with me
onboard about 200 extra lbs., with a trap speed/tire size/gear ratio formula, the stock engine was putting out
201.4 hp and after the intake was installed 216.5 hp about a 15 hp increase! Remember, the engine is just a big
air pump, the better you can feed it and get the exhaust out the more efficient it will become. Case in point,
a Top Fuel motor is 497 c.u. and produces 50 lbs of boost and has almost no exhaust restriction and make about
1800 h.p. now add to that equation Nitro Methaine, an oxygen Bering fuel and bingo 6000 hp. Thats about 10 hp
per c.u.. Now we aren't going to those lengths with our Legends, unless we have lots of them and a boat load of
cash too, but you can see how the air pump can be made very efficient.
Next is the noise level that the RM Racing intake produces. Since the air cleaner is an open element design, the
noise level is noticeable when pressing the gas down more than ¼ throttle. You can still please grandma in
the back seat on the way to the polo game if you light foot the pedal. The under hood insulation helps too. As
the motor winds up the noise level increases dramatically sounding much like a big four barrel carb on a 454
street machine. As the torque band comes in the motor really wails, sounding much like a sports car rather than
the lux boat that it is suppose to be. I find the noise to be quite exhilarating when running the car to top end,
or putting a lot of Z24's, Turbo Saab's, 200sx, in there rightful spot, the rear view.
The unit has been on my car for about a month, and I don't intend to take it off any time soon. But if you need
to do so, for what ever reason, the swap is only three bolts and a few clamps away. By the way, Akimoto has a
unit too, but its a colored tube, purple, red or blue, and the connectors are all bright yellow, yuck! The unit
from RM Racing is black, and looks factory installed. Its worth the extra $20 bucks. In my opion if you have the
need for speed, go for it!!!"
|
|
|