View Full Version : 7m stock intake
87'N/A
08-12-2009, 10:58 PM
what is the big canister looking thing on the stock intake between the maf and throttle body?
RiyadYar
08-12-2009, 11:35 PM
charcoal canister ? do you have a picture ?
gofastgeorge
08-13-2009, 09:26 AM
Yup, cuts down on intake noise........
Was one of the first things I threw away years ago.
RazoE
08-13-2009, 10:02 AM
leave it alone, you won't gain anything from removing it (especially power..)
Yup, cuts down on intake noise........
Was one of the first things I threw away years ago.
:3d_frown:
If you're only looking for loud, go for it, but doing so generally causes power loss. This has been discussed ad nauseum, try searching helmholtz, resonator and dyno.
87'N/A
08-14-2009, 08:34 PM
so if i replace the entire intake with aftermarket 3'' intake piping but keep the maf and replace the stock airbox with a 3'' high flow filter i'll lose power?
RockPaperSwoRD
08-14-2009, 10:29 PM
negligible amount of difference, but you will get a nice wooosh sound if you take away the resonator. the aftermarket filter would make up for any frequency loss
87'N/A
08-14-2009, 11:46 PM
so the filter will help a little but removing the resonator will make no difference?
Ma70.Ent
08-15-2009, 09:04 AM
Things to improve intake:
1. Remove the stock paper filter and replace that area with a high flow filter (AEM DryFlo, for example), then build a heat shield around it. Or you can just lengthen the piping so you have the filter all the way down at the bumper, but that might require cutting.
2. Replace the accordian section with something smooth.
3. Replace the AFM with a MAF. This is more involved.
Don't remove the resonator unless you want sound. You won't benefit from removing it. BTW, you could have just read the N/A Upgrade FAQ and found this out. It's one of the stickies up top.
gofastgeorge
08-15-2009, 09:29 AM
Things to improve intake:
3. Replace the AFM with a MAF. This is more involved.
Yeah, about $600+ more involved :aigo:
I talked with Toysport about this, because they used to offer a VPC for the 7MGE,
and they say that unless the engine highly built
(Big cams, big valves, high compression pistons, etc)
You will not see a difference in power,
and even with lots of mods, the gain is negligiable.
AJ'S 88NA
08-15-2009, 01:24 PM
Had to remove my resonator, headers burnt a hole in it.
RazoE
08-15-2009, 03:02 PM
You got that backwards, ma70.ent, replace the MAF with an AFM...
If you have a donor turbo Supra you can do it, but it wouldn't be worth it...
87tomanymods
08-15-2009, 08:55 PM
7mge comes with vaf (vain air flow) .......(mass air flow) is better......vain is one of the earlyiest air meetering sytems to be used in fi systems and is prolly the least acurate of all afm's (air flow meetering) systems ever
gofastgeorge
08-15-2009, 09:00 PM
Toyota calls it an AFM, look in the TSRM.
87tomanymods
08-15-2009, 09:10 PM
afm stands for air flow meeter thats a general term includes all air meetering devices
Ma70.Ent
08-15-2009, 09:10 PM
You got that backwards, ma70.ent, replace the MAF with an AFM...
If you have a donor turbo Supra you can do it, but it wouldn't be worth it...
Hey, try reading this:
http://www.cygnusx1.net/Supra/Library/TSRM/MK3/manual.aspx?Section=FI&P=94
http://www.cygnusx1.net/Supra/Library/TSRM/MK3/FI/FI_094.gif
afm stands for air flow meeter thats a general term includes all air meetering devices
Bzzzz....WRONG!
Educate yourself:
http://www.autoshop101.com/forms/h34.pdf
The terminology is important, especially on this car.
87tomanymods
08-15-2009, 11:12 PM
i did read it jdub very carefully thanks for prooving me right in that link (http://www.autoshop101.com/forms/h34.pdf) they cover the following .........maf (mass air flow sensor) gm style ........ vaf (vane air flow meter) used in 7mge .... and wait for it........ (karmen vortex air flow meter) used in 7mgte (no abreviation or acrinym) not one single mention of an (afm) ..............so educate yourself (i already went to lincoln tech) (and got my ase certs)
Ok smartass...you have not been around here long enough to hear an AFM called a MAF more times than I can count. There is a difference and they have different names for a reason...AFM is not a general term like you said. Just because they have the word "air" in the acronym doesn't make one big category. Every one of the sensors you mention are very different.
You might think about going back to class.
87tomanymods
08-15-2009, 11:49 PM
your just upset that your link didn't back up your statement but rather mine instead .and on that note im unsubscribing to this thread
LOL...And that's a good thing for the OP ;)
Bye!
Back on topic.
wade3570
08-16-2009, 04:40 PM
whoa...lets all just pass the peace pipe around...puff puff. lol
grimreaper
08-16-2009, 09:42 PM
for a second there i thought it was me being picky... guess not!
back on topic:
a maft-pro used with a 3" maf can be had for $300 or so if you look around!
Guyana00
09-09-2009, 05:26 AM
Stock piping is more restrictive, replacing with a larger and smoother pipe will give power gains, though minimal.
Losing the resonator will result in power loss, though minimal.
Minimal power gain - minimal power loss = ....
I DID have numbers from somewhere, not for the 7m though, the intake upgrade does net more power, but you guessed it!....minimal :)
Lincoln Tech Guy: yes the 7mge does use vane flow metering in their afm. Maf generally use hot wire system.
Also by your logic, MAP sensors are a type of AFM.
supraphoenix
10-06-2009, 10:52 PM
so just to confirm: the best option is to leave the resonator, remove the accordion pipe and replace with something smooth, and replace the filter with aftermarket cone... right?
Changing the filter's worthless if it draws in air from the engine bay... it MUST get air from outside of the engine bay or it will be a worse performance hit than anything else listed here... I've measured the temp differences and they're very big. Honestly, the stock filter isn't bad either... it has more surface area for air to pass through than most cone filters and the 7M-GE doesn't move nearly enough air for it or the stock air box to pose a restriction.... what DOES matter is what filter (media) you use... a cheap FRAM paper filter is cheap for a reason. ;)
If you're looking for solutions which will add power (well, just free it up really) then:
1) keep the stock airbox and use a GOOD filter (I don't think Toyota's are paper, are they?) OR install a GOOD aftermarket filter such as the Apex'i Power Intake filter, and either build a closed box for it with a snorkel to pull air from the same spot as the stock airbox or add some pipe and place the filter under the passenger headlight (harder to maintain)
2) replace the accordian hose with a smooth silicone hose or pipe with couplers
3) leave the resonator...
and, 4) if you want to go baller but go a *little* easy on the bank, install a MAFT Gen II with a 3" or 2.75" if available (NOT a 3.5") GM MAF and forgo the wideband and tuning (you should have a couple dyno runs done after install to ensure that everything's sound, but no tuning should be needed for a straight translation to MAF).
All of this work will net you some throttle response improvement and NO measurable HP gain.... but it's a good place to start learning and experimenting (I did).
EDIT: Where in CO you at? SW Denver here.
supraphoenix
10-09-2009, 11:57 PM
EDIT: Where in CO you at? SW Denver here.
I'm up north in longmont currently,
I really appreciate the advice. I have put on a K&N because the Apexi I bought was turbo only... unless there's a way to adapt over, anyways and i'm looking for more ways to loosen up the flow. I am working on coming up with an air box that fits and helps keep the cold air coming!
again thanks for the detailed write-up that helps a ton!
I'm up north in longmont currently,
I really appreciate the advice. I have put on a K&N because the Apexi I bought was turbo only... unless there's a way to adapt over, anyways and i'm looking for more ways to loosen up the flow. I am working on coming up with an air box that fits and helps keep the cold air coming!
again thanks for the detailed write-up that helps a ton!
For the 7M-GE you want the Apex'i that's made for the SW20 MR2. Comes with an adapter for the VAF.
What did you pay for the filter you've got? I think the SW20 kit runs $130 or so.
Edit: while we're on the subject, could someone give me the dimensions for the Apex'i filter? Just diameter at the widest point and the length not including the mount... I need to replace mine but it's tucked away under my headlight. ;)
RazoE
10-11-2009, 11:50 PM
which sw20..?
there's the 2.0L 3SGTE, the JDM 2.0L 3SFE/3SGE, and the USDM 2.2L 5SFE...
Whichever uses a VAF. ;)
EDIT: 91 - 95 MR2 Turbo - P/N 507-T007
It includes a heat shield, two mounting brackets and the adapter. You'll either have to modify the brackets or do without them.
Here's a link to a store which shows the kit and all the parts. As you can see the kit is also used in the 240SX.
http://www.frsport.com/APEXi-507-T007-Dual-Funnel-Power-Intake-Kit-S14-KA24DE_p_1470.html
supraphoenix
10-12-2009, 11:44 PM
For the 7M-GE you want the Apex'i that's made for the SW20 MR2. Comes with an adapter for the VAF.
What did you pay for the filter you've got? I think the SW20 kit runs $130 or so.
Edit: while we're on the subject, could someone give me the dimensions for the Apex'i filter? Just diameter at the widest point and the length not including the mount... I need to replace mine but it's tucked away under my headlight. ;)
Damn I could have used that info about 3 months ago before I got the wrong one :3d_frown: but alas...
I will grab my filter hopefully tomorrow and get you the measurements off the one for the gte. oh and i paid 130 shipped so I guess i'll have to be happy even though it is just K&N :3d_frown:
Damn I could have used that info about 3 months ago before I got the wrong one :3d_frown: but alas...
Well, you should have asked me then... right? ;)
It's a common enough error. You could check ebay for a suitable adapter. Otherwise I'd just sell it and buy the right one.
I will grab my filter hopefully tomorrow and get you the measurements off the one for the gte. oh and i paid 130 shipped so I guess i'll have to be happy even though it is just K&N :3d_frown:
K&N??? Eh? Get the Apex'i, as yu seem to already know, it's MUCH better.
That'd be great if yu could get me those measurements... TIA!
supraphoenix
10-18-2009, 12:28 PM
Edit: while we're on the subject, could someone give me the dimensions for the Apex'i filter? Just diameter at the widest point and the length not including the mount... I need to replace mine but it's tucked away under my headlight. ;)
The dimensions are six inches at the widest part and its a little bit more than 4 inches long. Like 4 1/4 inches.
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