You can not compare a race car to anything remotely related to a 4runner other than they both use an engine, tires, and transmission. Two entirely different beasts with two entirely different uses. Lest we forget that race cars regularly turn 9000+(15,000 in some instances)rpm and have no regard for intake noise, mileage, or 100k mile reliability.
2002 Intake Silencer Removal
- Thread starter MatthewRM18
- Start date
Was it Toyota's priority to not leave free power on the table while loping along at 2000 rpm?
Well, mileage in racecars is typically crucial, but that's beside the point. The point is, if resonators made more power, high performance engines (where not leaving power on the table actually IS a priority) would have resonators. Most don't.
Lol that won't work. You need two resonators, with a deckplate in between.I might put a mini deckplate on the factory intake resonator. Help it breath better.lane:
You are still trying to compare an apple and an orange. A street driven engine is an entirely different animal with entirely different operating parameters than a race engine. The principles don't even compare given the design characteristics of each. It's like comparing the space shuttle to a commercial air liner.
gamefreakgc
Elite Member
I love reading ISR and Deckplate Mod threads opcorn:
opcorn:Eh, physics tends to apply to internal combustion engines rather universally. But what do I know.
I love reading ISR and Deckplate Mod threads
One of these days I'll learn to shut up.
I love reading ISR and Deckplate Mod threads
As old as I am you'd think I'd have learned to not get sucked into these dumbass debates.
gamefreakgc
Elite Member
You joke, but there's someone in my neighborhood who has a Honda civic with a setup like that. It's hilarious, the cone filter sticks out about 10 inches in front of the bumper.
MatthewRM18
New member
I love how this thread blew up with a debate. I started it just asking about some pipe sizes and specifics on how to actually perform said modification, but...what do I expect when posting anything about such a "controversial" topic. XD
Nunyabiz
New member
and I honestly cant see how this can be a controversial subject.
its common sense that allowing your engine to breath better and exhaust freer is a good thing for many sound provable reasons.
this is like trying to argue that square tires are better.
I have 100% empirical evidence that changing my intake and muffler gave me 2+mpg better mileage.
and I have tried everything you can think of to get better gas mileage and nothing gave me so much as a teaspoon per gallon better mileage until I did that.
If you have the money the best bet is the Airiad jr kit.
It has totally paid for itself in gas savings.
MatthewRM18
New member
Yeah, if people go into it expecting a ridiculous change, it isn't going to happen, it's like a $30 mod on the expensive side, and even if it just helps the "butt-o-meter" with sound and pick-up, maybe a few mpgs, I am looking forward to doing it. It is a matter of personal preference when it all boils down to it, it isn't worth arguing over. XD Its all for the love of tinkering with our vehicles, that's the way I see it with these low price mods, I can understand if someone drops a few grand on a SC and it has little to no gain, but for a few hours and a few bucks, not worth the argument.
I have way too many years of experience to say the above is so so true
I don't think that Toyota wants to leave hp or mpg on the table as someone said.
But they also have to design around emissions standards, common buyers noise standards, and making their rigs reliable knowing most people don't maintain as they should
but luckily I don't have to worry about emission testing where I live. I don't mind a bit louder, and I maintain my rig prob better then what Toyota has designed for ( miles/months/etc)
Ive already got a free flow muffler, and am looking forward to my spectre intake install ( a gift from rcastle) just waiting on a TRD big O gasket
of course that starts a debate too.....the big O gasket, but it fits with this discussion. so what is the advantage of the big O,if it was good Toyota would include it already.....wouldn't they?....well....Toyota had to install the D gasket to slow air flow, to help get the emissions levels down.....emissions...not hp or mpg was the design constraints of the D gasket
Why did TRD make it an O gasket.....to remove restrictions on air flow and emissions was not a concern
In any case, I like the easier access to the engine, the cleaner look....and if I can pick up 2mpg im all for it, that would put me at 23.
Last edited:
How loud is the free flow muffler? Which one did you go with?
Nunyabiz
New member
this is the one I went with, not loud at all.
Borla 40665 Turbo XL
https://www.youtube.com/watch?v=wmf0heg4-cU
http://www.amazon.com/Borla-40665-Universal-Performance-Muffler/dp/B000CIK9L0
jeremyc74
Banned
No, their point was to make power across a broad RPM range. How many times have you seen a racecar with a boat or RV behind it?!
Racecar engines operate in a very narrow RPM range, and do MANY things to deal with the pressure waves in those ranges.
Ever seen a tunnel ram? How about the huge intake plenum that's on top of high performance V12 engines using ITB? Both are there for the same reason as the resonator Toyota uses... improving volumetric efficiency.
For someone who claims to tune engines for a major automotive company, you sure as hell don't seem to know much about it.
We should be so lucky!
Last edited:
No, their point was to make power across a broad RPM range. How many times have you seen a racecar with a boat or RV behind it?!
Racecar engines operate in a very narrow RPM range, and do MANY things to deal with the pressure waves in those ranges.
Ever seen a tunnel ram? How about the huge intake plenum that's on top of high performance V12 engines using ITB? Both are there for the same reason as the resonator Toyota uses... improving volumetric efficiency.
For someone who claims to tune engines for a major automotive company, you sure as hell don't seem to know much about it.
We should be so lucky!
Please post 4Runner dyno results to support your argument.
Thx
