couv3z Posted November 24, 2007 Share Posted November 24, 2007 Hi Before i open my large and stupid mouth:eyebrows: I was planning on a Nos kit but this close to x-mas and 3 week delivery not a good idea. I was planning on doing some of these thing after but as there on the site for sale i thought id do them now Increased TB pendulm :--- q45 and Increasae the size of the Fuel injectors from 440 to 550 Now before you get off your high horse, i don't expect 100000 more bhp, hell 10bhp would be it, but these are to be supporting mod for the Nos and one day the Na-T coversation, but anyway back to the point With doing these mod would i need to remap the car? or would i need to buy a ECU as well? to check. The 550inj which i think are the increaded size over jap stock (which are uk??) would just drop in no need to play with the fuel Rail? or anything else *For Homer i will be Dyno this before and after for your FAQ on N/a* thnak you for your time Quote Link to comment Share on other sites More sharing options...
Homer Posted November 24, 2007 Share Posted November 24, 2007 I can't remember what your current spec is, but: Larger injectors won't release any more power themselves, plus you'll need an aftermarket ECU and remap to control them. It's the remap and ECU that *might* let you get a little extra, but I doubt it. The throttle body isn't a restriction so again you won't gain power from changing it. It's not a problem on 600bhp turbo's so isn't going to bother a 220bhp NA. Quote Link to comment Share on other sites More sharing options...
couv3z Posted November 24, 2007 Author Share Posted November 24, 2007 but wouldn't in the increase in air flow and volume of fuel be a gain? and then a remap to get best use these new increase? Quote Link to comment Share on other sites More sharing options...
Homer Posted November 24, 2007 Share Posted November 24, 2007 but wouldn't in the increase in air flow and volume of fuel be a gain? and then a remap to get best use these new increase? No, thats not how engines work Edited to add - you can't just increase both, the engine has to be capable of combusting the increased amount. Obviously because it's an NA you can't *force* more air AND fuel in there - it's going to be at atmospheric pressure. Turbo engines are a different matter though. Quote Link to comment Share on other sites More sharing options...
couv3z Posted November 24, 2007 Author Share Posted November 24, 2007 No, thats not how engines work not to sound scarastic but cars run on a air and fuel mix? edded after post :-thats sounds really bad not how its mean to be but you know what i mean? Quote Link to comment Share on other sites More sharing options...
Homer Posted November 24, 2007 Share Posted November 24, 2007 not to sound scarastic but car run on a air and fuel mix? See edit above Quote Link to comment Share on other sites More sharing options...
couv3z Posted November 24, 2007 Author Share Posted November 24, 2007 The throttle body isn't a restriction. isn't ist size a restriction ? by using a increased size one and opening the mouth of the inlet manifold............... Quote Link to comment Share on other sites More sharing options...
couv3z Posted November 24, 2007 Author Share Posted November 24, 2007 am i just grabbing at straws.......... Quote Link to comment Share on other sites More sharing options...
Homer Posted November 24, 2007 Share Posted November 24, 2007 isn't ist size a restriction ? by using a increased size one and opening the mouth of the inlet manifold............... No, it's not. I think you need to have a read on here about NA tuning, there was a good thread in tech a few months ago with input from a few experts (Chris Wilson) which described how to go about modding them. Short story is it's VERY expensive to get more power out of a 2JZ NA. Quote Link to comment Share on other sites More sharing options...
CJ Posted November 24, 2007 Share Posted November 24, 2007 am i just grabbing at straws.......... Yep Quote Link to comment Share on other sites More sharing options...
colsoop Posted November 24, 2007 Share Posted November 24, 2007 I remember professor monkey changed his inlet manifold for an aftermarket one running a different throttle body.It wasn't simple though as the battery had to be relocated along with the ps reservoir, i don't remember whether he gained anything from it either. Thread about it here: http://www.mkivsupra.net/vbb/showthread.php?t=56975 Quote Link to comment Share on other sites More sharing options...
RobSheffield Posted November 24, 2007 Share Posted November 24, 2007 If you have NA then are your injectors not 330cc? 440s are TT only no? Quote Link to comment Share on other sites More sharing options...
kieren1234 Posted November 24, 2007 Share Posted November 24, 2007 You wont gain anything from the throttle body and inlet plenum, only if going na-t and then there would still be no reason to do this. IIRC there is a supra running 800 BHP which is an na-t on the stock intake. also the standard injectors are 330cc in na/s are they not?? 550's would be a little overkill, get some mkIII turbo injectors, they drop straight in with a resistor pack and they are 440cc. EDIT - too slow about the injectors. Well done Rob. Quote Link to comment Share on other sites More sharing options...
bromy Posted November 24, 2007 Share Posted November 24, 2007 You wont gain anything from the throttle body and inlet plenum, only if going na-t and then there would still be no reason to do this. Three good reasons on a na-t 1. Cooler intake temps due to not being routed over the engine 2. Shorter route 3. Ease of changing plugs Still working on my intake Quote Link to comment Share on other sites More sharing options...
kieren1234 Posted November 24, 2007 Share Posted November 24, 2007 I agree, i would love one but very expensive. Quote Link to comment Share on other sites More sharing options...
bromy Posted November 24, 2007 Share Posted November 24, 2007 I agree, i would love one but very expensive. Make one:D Quote Link to comment Share on other sites More sharing options...
kieren1234 Posted November 24, 2007 Share Posted November 24, 2007 I would if i had the time, resources etc. Bromy, would yur ecu pinouts be the same as my 1994 manual j-spec?? Quote Link to comment Share on other sites More sharing options...
couv3z Posted November 24, 2007 Author Share Posted November 24, 2007 550's would be a little overkill, get some mkIII turbo injectors, they drop straight in with a resistor pack and they are 440cc. EDIT - too slow about the injectors. Well done Rob. same questionb with this would i need to get a piggy back ecu? or that could wait? Quote Link to comment Share on other sites More sharing options...
kieren1234 Posted November 24, 2007 Share Posted November 24, 2007 You would need something to control the injectors mate. Something like an SAFCII or e-manage. In my opinion, fitting the injectors and plenum is pointless untill you are going na-t. May aswel do it in one go. Quote Link to comment Share on other sites More sharing options...
Nic Posted November 25, 2007 Share Posted November 25, 2007 On a stock NA there is no point fitting a bigger throttle body and bigger injectors. The stock 330cc injectors are capable of handling around 300hp and the stock throttle body as Homer said earlier is not a restriction. If anything, you'd gain more power trimming the amount of fuel going into the engine. Toyota will have mapped the ECU not to get the ultimate power they could out of the engine, but to get a good balance between power, durability, emissions, economy, etc. So trimming the fueling and playing with the timing may gain you a little, but don't expect too much. Quote Link to comment Share on other sites More sharing options...
couv3z Posted December 1, 2007 Author Share Posted December 1, 2007 well................. we will soon see what happens this thursday when it all goes in not doing the tb as, well homer is right... Quote Link to comment Share on other sites More sharing options...
CJ Posted December 1, 2007 Share Posted December 1, 2007 well................. we will soon see what happens this thursday when it all goes in Can I ask what the point of the thread was? You looked for advice. Almost unanimously got told the same thing and yet ignored it all and went ahead anyway. Why bother asking at all? Quote Link to comment Share on other sites More sharing options...
couv3z Posted December 1, 2007 Author Share Posted December 1, 2007 Can I ask what the point of the thread was? You looked for advice. Almost unanimously got told the same thing and yet ignored it all and went ahead anyway. Why bother asking at all? to see if any once else had done it? sorry I don't have a TT and can ask about boost controllers and turbo etc .... i have a N/a and i want to improve it ............. pardon me for living!!!!! Quote Link to comment Share on other sites More sharing options...
Nic Posted December 1, 2007 Share Posted December 1, 2007 What are you actually getting fitted? Who's fitting? Quote Link to comment Share on other sites More sharing options...
couv3z Posted December 1, 2007 Author Share Posted December 1, 2007 Greddy blue and 440 inj's i know its not going to be a massive increase or maybe no increase... but it gets the car to be remappable for future mods one day i hope to afford a Na-t conversation and with this is in the car already it helps in the long run Quote Link to comment Share on other sites More sharing options...
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