|
WHICH THORTLE FOR NA?
hi guys! i wanted to maximize the power in my ap1 with an jdm f20c engine. im planin on adding a throtle body but before i do it i would like to ask which throtle will be the best to use for my set up. i have a greddy EMU,j's racing header, asm exhaust, j,s racing tsuchinoko intake, testpipe etc i also have okada coils on the way. . im chossing between skunk2, spoon and j's racing. and wahat size would be the best?? thanks guys!!!
|
OEM until you go FI. Spend your money elsewhere.
|
oh ok but smoe say i can gain up to 5whp with the throtle i want to maximize the power of the car naturally aspirated and only on bolt ons. i want to see on howmuch power the car can make on allmotor with only bolt ons and no internal mods. thanks!!
|
you won't make 5hp with any tb unless you have the supporting mods.
TB's are more for throttle response than gaining HP. |
He has an EMU so he can tune!
A TB will give you a little power (around 5 whp) with a tune. I would get the J's with the 64mm size on the backside. That will match up perfectly with the stock plenum. The OEM TB is not port matched to the plenum, this alone probably costs you a couple HP. |
aren't you out in the phillipines or somewhere?
i would not buy any throttle body and sell the okada coils....then go get yourself the cooling mods ( lower thermostat and fan switch, radiator cap....you can get the hondata img also ). those will be much more beneficial than any throttle body or coil pack. you don't make any additional power, but you pick up a lot of lost power from heaksoak. and out there with the humidity and heat, i think this is a good decision. you can also run your em-u on more slightly more aggressive settings to get a little more power out of it. |
Originally Posted by carrera4,Nov 16 2008, 02:53 PM
He has an EMU so he can tune!
A TB will give you a little power (around 5 whp) with a tune. I would get the J's with the 64mm size on the backside. That will match up perfectly with the stock plenum. The OEM TB is not port matched to the plenum, this alone probably costs you a couple HP. J's |
a TB might make 5whp if you have an EMS... :thumbup:
|
Originally Posted by Js S2k,Nov 16 2008, 12:25 PM
I don't know how bad shipping costs will be, but there is a company call Proflow here in the States that can bore an oem tb. I'm looking into getting a 70-64 tapered one. They're only $195 + your oem as a core.
J's paying $500+ doesn't seem worth it to me though :) |
Originally Posted by Hero,Nov 16 2008, 12:07 PM
aren't you out in the phillipines or somewhere?
i would not buy any throttle body and sell the okada coils....then go get yourself the cooling mods ( lower thermostat and fan switch, radiator cap....you can get the hondata img also ). those will be much more beneficial than any throttle body or coil pack. you don't make any additional power, but you pick up a lot of lost power from heaksoak. and out there with the humidity and heat, i think this is a good decision. you can also run your em-u on more slightly more aggressive settings to get a little more power out of it. im also planin on porting the intake manifold . matched ported with the size of throtle that ill be getting. so is 68 or 70mm ok ??? i want to maximize the NA engine with all the available proven bolt on parts first before touching the internals of the engine. yup i have an EMU and il be having it dynojet tuned. |
Originally Posted by Hero,Nov 16 2008, 02:42 PM
that actually seems a little more worth it.
paying $500+ doesn't seem worth it to me though :) thats why im also asking reviews about the skunk2 throtle for s2000. |
take a dremel to your stock one.
i've done this on all my previous cars and throttle response was a world of difference. no numbers to prove gains though. |
i dont want to experiment with the parts on my own . thats why i wanted to buy the branded ones.... thanks!
|
I've been eying this one for a while now.
http://www.scienceofspeed.com/products/exh...hrottle%5Fbody/ |
Originally Posted by mwilly00,Nov 17 2008, 05:13 PM
I've been eying this one for a while now.
http://www.scienceofspeed.com/products/exh...hrottle%5Fbody/ |
can emanage ultimate do anything for HP gains with a TB?? What's the preferrable size for N/A throttle bodies on AP1?
|
Spoon comes with brand new sensors, J's does not, thats an easy decision. Personally I've never been impressed with skunk products.
|
spoon is tapered? What's the diameter?
|
Butterfly is OEM diameter, outermost is 70mm. Purpose is to create a venturi effect speeding up the air into the intake. Doubtful you will see a hp gain but response is improved, good mod if you have a lot of NA mods already IMO.
|
so i guess spoon is better but how about the j's racing 70mm outer - 68mm inner bore throtle body? is it good? if its good, its ok for me to match port my intake manifold with the throtle... thanks!!
|
i still like this. i might order this for the hell of it. but im just curious if i will need a intake manifold to match the tB port.
http://www.scienceofspeed.com/produc...rottlebody.jpg |
Before you drop this kind of money, I really suggest you read about building a parts package rather than just Lego-building and slapping shit on here-and-there.
It's doesn't work like this, contrary to all the clever marketing you see: intake +5hp manifold +7hp throttle body+8hp exhaust +10hp Wow! 30hp! WRONG. |
For NA you want a taper TB. Not sure how much you're going to bore to intake manifold, but ultimately you want it to taper to the exact size of the intake manifold.
Since you're doing the work, you will have all the answers you need, just need to research which product will give you want you want. |
Originally Posted by jdmgpw04,Nov 18 2008, 11:22 AM
i still like this. i might order this for the hell of it. but im just curious if i will need a intake manifold to match the tB port.
SOS ported the stock TB 4mm larger on inlet and outlet and shaved the fastners on the buttefly. |
Originally Posted by dparm,Nov 18 2008, 08:40 AM
Before you drop this kind of money, I really suggest you read about building a parts package rather than just Lego-building and slapping shit on here-and-there.
It's doesn't work like this, contrary to all the clever marketing you see: intake +5hp manifold +7hp throttle body+8hp exhaust +10hp Wow! 30hp! WRONG. |
I had 72mm TB from BDL, if you match the manifold it takes extensive welding. BDL also mounts the MAP on the bottom of the TB, if you have AEM V2 and you ever get the least bit of water up into your TB the water will go straight into the MAP, this happened to me. Its a $70 sensor, I sold that setup.
|
I will probly go with the scienceofspeed taper bore throtle body looks like the best bang for the buck . Get and dyno it and tell me if its worth it :D
|
Originally Posted by dparm,Nov 18 2008, 09:40 AM
Before you drop this kind of money, I really suggest you read about building a parts package rather than just Lego-building and slapping shit on here-and-there.
It's doesn't work like this, contrary to all the clever marketing you see: intake +5hp manifold +7hp throttle body+8hp exhaust +10hp Wow! 30hp! WRONG. |
guess i would be going for spoon throtle body then.
|
i have the SOS throttle body and it just improved the throttle response and felt alittle gain just from the response but really nothing more....i would spend your money elsewhere.....:)
|
what supporting mods do you have?
|
I have the SOS also... Its not installed yet though so cant help you on what it does... I did have the spoon with my old setup and it made a big diff on throttle response. With that setup I had the MG Racing intake,spoon tp and spoon exhaust.
|
or you can just have your stock TB honed out to 67mm and shave the butterfly screws like this
https://cimg8.ibsrv.net/gimg/www.s2k...5d23bcbfd8.jpg |
you want the most power staying NA?
have you ever heard of ITB's? Save your $ from the TB and coil pacs and put them towards ITB's |
And spend the next couple of years tuning...
|
What exactly about ITB's makes them such a bitch to tune? I've heard and seen my share of problematic ITB setups, but I'm not really sure about the causes.
|
yeah, i'm not a tuner but i would've thought it is the same as the oem NA curve just that it intakes something (for example) like 40% more air than stock and fuel would be bumped throughout the rpm band to compensate. how does the itb's complicate everything, is it the removal of other functions/sensors that adds to problems?
|
" how does the itb's complicate everything, is it the removal of other functions/sensors that adds to problems?"
i have seen several different brands of ITB's for the S installed and in the process of being tuned and the biggest issue is the quality of the linkage from body to body and getting them all sync'd, because they are individually adjustable but also adjust as one, and one adjustment on one changes all four. |
I went from stock to science of speed tb. changed it while the car was on the dyno. we did not see much of any hp increase, but my tune guy noticed a definate difference in throttle response. 200$ exchange from science of speed is a good deal. with a good tune you might see 5hp gain if your lucky. the intake port match perfect,no modding.
|
YellowJacket's post is in agreement with my butt dyno. I have the SOS TB and although it didn't feel like it gained much power (if any), it did feel more responsive especially at highway speeds. I like the mod.
|
how long did it take fgor you to get your sos tb once ordered?
|
It took me only the time to install since I live near the shop. You might want to call them just to confirm they have one in stock.
|
Where could you buy a custom throttle plate? Like custom size and then u drill the holes in it? I'm wondering how hard it would be to just machine out your own TB. Problem is buying the throttle plate, anybody know what type of metal it is?
|
It took about 3to4 days shipping to get my tb from sos. if you have an ap1,they usually have them in stock.don't know about the ap2's.
|
What's a Thortle? LOL.
|
J's in my opinion.. thats the TB i have and i noticed throttle responce right away !! tapers down to the exact size on the manifold !!
|
Originally Posted by ekdave,Mar 11 2009, 02:50 AM
What's a Thortle? LOL.
|
:LOL: ^^
|
| All times are GMT -8. The time now is 06:10 PM. |
© 2024 MH Sub I, LLC dba Internet Brands