MK3 Supra Turbo looking to Upgrade??
 

Ok so i have my supra and i have about 2k to spend on it im not quite sure where to start.

Im for sure getting an Intake first but not shure where to start next. I dont know weather to go with an intercooler and hard pipes or a down pipe of some sort.

If anyone has any specific brands that they have used or products that are not as common as lets say Grredy or HKS and they have turned out to be well worth the while please leave a message. I really want to build up my baby but i want to know what Kind of quality/performance the parts im buying have. Also what kind of power gains and what not come along with them.

Thanks for reading : ) any information is very much appreciated.

Well, a lot of options... I recommend starting with fueling (this includes, fuel pump, new fuel filter, fuel controller and injectors), then exhaust, then intake. As far as intakes go, there's a firly recent thread about cold air intakes... read it. For filters I recommend either Apex'i or AEM DryFlow... I hear Amsoil's EaO air filters are excellent as well. I would avoid HKS and K&N air filters myself.

I didnt even think about fuel systems yet. Im almost positive the injectors need to be flushed or replaced. any brand preffrences on injectors and fuel filters and whant not?? My trunk is rusted quite pretty bad getting to the fuel pump may be a major problem.

What is a fuel controller exactly?

I was going to go with the apex'i after reading the website you posted in my other thread. it was verry informative and suprising to see that K&N really isnt as good as they are made out to be.

I have no clue what Exhaust to run with. i dont want it to sound ricey but still be louder than stock for sure. i dont want to spend 1100 on a catback system and not like what i have you know

Thanks for the info man you have really helped me out with all the problems iv had with my supra so far.

Cre.. Why would you upgrade the fuel things first? Will you see any HP gain from them..?:dance:

3inch exhaust
 

Hi you dont say what engine I take it it's a 1j, a 3" system will loose power down low and not make any more up top than a 2.5" system, we dont use 3" untill the motor makes over 500Hp, make up your mind if you want to be into fashion or power. forget about shiney "Look At My" bits they wont work well on the street.I have a 91 r spec with full GReedy set up, Trust Headers, TD07 ARC intercooler and all the rest of the best bolt on's from japan. It's a dog down low and while great fun, is not a streetable car (triple plate etc) Buy parts that will work for what you what if it to show off but the shiney bits. Phil


Where there's a Phil There's a way

No I have a mk3 supra the standard engine for the mk3 is the 7m series. I have a 7mgte.

Sorry it took me so long to reply I wasn't notified that someone posted.

That's funney iv heard the opposite everywhere iv been. On a turbo cxar biger is better to allow the exhaus to escape faster and to alow scavenging to occure in the piping. The more free your downpipe and exhaust is the faster your spool is because there is leas back preasure. The faster you can spool up the quicker you get your power. I have also been told that you can see gains of 1-3 psi and 30+ horsepower just from a 3" high flow exhaust.

Someone correct me if I'm wrong please

I don't know if your wrong or right.. I hope it is true.. Sounds true enough.. :x:

Ok... well, yes and no... Larger pipe HURTS scavenging... severely. The larger the pipe the lower the velocity and the more time gases have to cool and increase in density thus requiring more energy be expended to expel them. BUT, scavenging isn't terribly important in a forced induction setup.... it is fo a N/A application which is why you'll hear a lot of mechanics and tuners telling an N/A owner they're a dope for running a 3" or larger exhaust, too large a throttle body or intake piping. Scavenging is a where the high velocity of the gasses flowing through the exhaust create a suction which, if employed correctly, assists in the removal of exhaust gases from the combustion chamber on the exhaust stroke... in a turbo setup this simply is not possible as the gasses must be pushed in order to move the exducer. The turbo's exhaust, especially after the turbo, is much cooler and much denser thus it requires more room to flow without creating back pressure.... and no matter what you may have heard; BACK PRESSURE IS NEVER A GOOD THING!

So if you have a turbo you would say 3in exhaust is good, and NA should not be that large.. Like 3in.. lol..?

3" Exhaust
 

Sorry you are wrong, the size of the pipe after the turbo on a STREET driven car is very important The flange on the turbo back to the under the car (First 1.5 /2 meter) is very important and dispite what you have read, i have proven it many times on the dyno but in fairness as the engine gets larger the effect is less, I stand by my comment that most people buy things that dont suit what there are doing but thats the power of advertizing (God bless America) LoL Phil

well
 

from some personal experiences My friend took his stock 1j and put a nice 3" exhaust on it and he definitley saw hp gains and boosted from 12psi to 15psi hitting cut somewhere now and it sounds very nice and spool is very smooth and fast. I would recommend a 3" exhaust For any inline 6 as to be Perfect i think a 3.5 is to big.. but i have yet to drive with one to compare.. 2.5 seems a tiny bit to small for my needs and hp wants

From personal experiance, my mate ??? did he try a 2.5 system? no, so HOW can you make this statment, he may well of got the same result and what sort of expert are you to advise people to fit a 3 " system? I know a guy who had a freind who knew a guy ........

i drove the car. im not saying 2.5 is bad but he say hp gains to the 3"

Everyone needs to chill on this forum. Everyone has their opinion, and they are free to state it just as you are. If you would like to settle this argument, please post up some form of proof for your side or this is just going to keep going back and forth with people calling each other names, and probably end with this thread closed by cre with no real answer to the op's question.

BTW turbophil, if you have the results from your dyno runs it'd be nice if you could post them up here so we can see the difference. It would probably help people on here progress their builds closer to their performance goals.

Ive got a 3inch downpipe if you need one :)

Sure your right but thats is all I'm doing, Im sure members can take from it what they will Thanks Phil

Thanks for the drum roll BTwilson. ;)

I really do try to avoid closing threads. If I feel the question has been answered as well as can be expected and that the thread has been thoroughly derailed with nothing more to be gained I will close it.... but usually I will warn the offending members and possibly issue a ban before I consider closing the thread. I really try to avoid deleting posts and threads as well; I'm not in favor of outright censorship (although some people are working at changing my opinion on that and they're getting close to finding their own posts heavily moderated).

I don't care if people get in an argument over something... you don't have to throw mud though. I'll even let the occasional nasty rebuttal slide, but I if see a trend or you start getting too personal you will be put in the corner (or flat out banned).