In general, Import Tuner puts out rosey numbers.

Example:
Import Tuner
issue: August 03
Page: 104 - 105

Dyno 3 w/ mods then exhaust fior a 1g DSM AWD
178.7 HP
155.7 TQ

Dyno 4 add hyperground wires
184 HP
170.1 TQ

Gain: about 6 WHP/ 15 TQ = flywheel (add back 20% driveline lost - this figure is pretty low driveline lost for AWD)

+7 HP/18 TQ flywheel . . . then I should expect manacor plug wires should bump me 5-7 HP at the crank.




Import Tuner
July 2003
Pages: 104-105 on a 03 SI

Dyno 1: baseline of 153.3 HP/131.9 TQ
Dyno 2: with a typoon intake of 160.6 HP/135.3 TQ

gain: about 7 HP/4 TQ

Are you willing to believe +8 crank HP from just intake? If so, if I add just CAI to a lancer, should I automatically expect 130 HP at the crank?


Import Tuner has a lot of performance anomalies than SCC. Look at SCC dyno . . . you'll see conservative figures.

 

Well, I just don't get the implication. Are you saying that the machines are wrong, or just calling IT liars?

PS - it really doesn't matter to me. My *** and my right foot tell me that a DP makes the car faster. That's all I need.

 

I have my own lil theory with the whole "DP is not neccessary/DP gives gains." I got my own issues about RRM, but I might have to back them up on this.

RRM fabricates many parts, so the issue of just simply not fabricating a downpipe along with the headers for the 02-03 Lancers for just not doing so is bull. I know that's not the issue but i just wanted to address that first.

RRM does a lot of R&D into their parts and if they say the the downpipe didn't provide "significant results" then that's just what they mean. The downpipe probably isn't worth making if they weighed the results that it didn't give out much power. I say this because with the Ralliart it's the exact opposite. On their website and vendor forums, RRM is selling a downpipe replacement, saying that was their most restrictive part and not the headers. Supposedly the Ralliart headers are pretty good already and most importantly their is no cat in them.

So as tuning experts and a business stand point...their goal was to replace the most restrictive parts to yield the best possible gains. I just think RRM didn't wanna make parts that didn't need to be made for cost and function. That's my .02 cents.

My opinion, why not just get Kamikaze headers. You get gains maybe not as much as the competitors but it looks nice under the hood, you get a downpipe, and you can't beat the price.

 

Pick - you forget one thing. The stock downpipe on the 4G94 is crushed down to 0.5" at one point (near the 2nd cat). To call it unrestrictive would be a joke.

It may very well be that the butt dyno didn't show RRM enough to justify sales. But thinking of good business, why not make a part that customers ask for? If people show a desire, supply the product.

 

Which header(s) did you have?

There is a dyno in my registry or profile if you wish to look at what I am working with. I don't think I lost any torque if not gaining because I remember when I first got the header put on the acceleration was like night and day. Even now with the eibach springs putting more weight on the front it's easy to break the tires loose or roast em if I like.

I am not telling anyone what to buy. I think my cars performance speaks for itself for the small amount of mods it has.

WADAD

 

yeh well i just wanted to put my .02 cents in. My downpipe has a freakin hole in it, so I gotta replace mine anways w/ RPW or Kamikaze.

 

See, RRM can call having a cat in line "restrictive" and that the DP doesn't have material blocking it "unrestrictive"..... but I think both stocker parts sucked The Stock DP is a really sorry excuse for exhaust design, and can ONLY be there to bump the EPA MPG numbers by killing power.

And I agree that IT basically makes **** up as it goes along.... my own experience is that combined, my SRI and DP don't make even 7HP at the wheels... much less 7 each. And I think that if you polled EvoM members, they'd agree that individually the parts gave some gains, but they weren't mind blowing... That's not to say that I'd go back to the stock airbox or DP, but I'm not expecting them to turn water into racefuel, either

 

lol that dyno is a joke! those really are "rosey" numbers. they must have sugar coated it becasue they love civics so much. anyways there is no way a new SI puts down 153HP to the wheels when it is rated at 160Hp at the flywheel. and the torque? everyone knows hondas don't have any torque. the 200hp rsx type-s only has 140 and thats at the flywheel.

as for our dp i think rrm doesn't make one because with their header it probably didn't show noticable gains, but rpw needs to make it because theirs header won't fit with the stock dp. a header by itself or a dp by itself will probably produce noticable gains but combined they probaly won't because they might create too much loss of backpressure. if you open up the exhaust you gotta have more air comin in to balance it out. a header dp combo would prodoce more gains if you already had more intake mods like throttle body and intake manifold.

 

^^^ true to a point about backpressure. But, removing a restriction that gets down to about 1/2" in favor of something reasonable- say 2- 2.25" isn't going to cause you to lose much low end, and it does free up mid-top end. If somone was to say, go to a 3" header-back exhaust, then yes, they'd have no backpressure and would wonder why they couldn't launch.

 

Not really lairs. It's a propaganda machine. If they can hedge the truth enough, enough people will swallow it.

Just like Enron. Those accountants did some creative numbering until they got caught as well as other corrupt corporations.

Don't have to believe what I have said, just try to find a similar cars that IT and SCC have tested and look at their #. I can guarantee that IT has numbers much higher than SCC with similar mods. I rather trust SCC on their Dyno than IT. I don't read "Turbo" magazine, so I don't know if they hedge the dyno numbers or not.

my #1 rule: if it's too good to be true, it usually is.
example: those ebay MAF resistors or whatnots are the best HP gains ever! just j/k