ok i jus got the car boosted and the piping going to the turbo and the intercooler seems very small!!! does it matter how big the piping is as far as horse power goes because im boosting 7 pounds but it still feels slow!!!B16a2
Im using 2" from the turbo to the intercooler, and then 2.25" from the intercooler to the intake.
u want the intercooler piping to be smaller. opposite from downpipe and exhaust where bigger is better.
ok!!! how do i turn up the boost!! im running 6 pounds! i want to turn it up to like 10 but the mottor is stock!! can it handle it if i only boost like once a month when i race at the track and what would my fuel pressure have to be set at???
What kind of fuel management are you running?
you should get injectors, fuel pump and some a/f controller…
?? where did you get this? ??
As long as you can achieve more volume without pressure drop I say go as big as possible.
Pipe diameters are usually 2" to 2.5". As opposed to exhaust system diameters where bigger is better, here bigger is definitely not better. The larger the pipes are, and the longer the pipes are (plus the larger the intercooler) the more volume the turbo will have to fill with air before it becomes pressurized, creating lag. But there is another side to the coin. If the pipes are to small they can prevent sufficient air volume from reaching the engine even though the turbo is more than capable of providing the required volume. Generally 2.25" is good to about 400 horsepower.
Turbo Guide
Most of it has to do with your Turbo flow, not the size of the piping.
If you have a small IHI turbo, you dont want large pipes because the small turbo has a harder time filling them up.
I’d love to know where you got this 2.25" good to 400hp statistic…I’m guessing its just your opinion… :bang:
i’m not trying to be mean or anything and i don’t know if there was any sarcasm in your remark, but that statistic was quoted from the Turbo Guide by Haberdasher. is this incorrect information from the Turbo Guide??
I have no reason to question the validity of that claim one way or another, its just that no one ever has facts or a source for the information they get when they post it on the internet.
I wanted to know where you got it from…
you just asked me where i got this information from, so i posted it. Straight from the turbo guide. Wasnt trying to be sarcastic. I guess ask haberdasher where he got the 400 hp thing from, cause he wrote it
i have a aem fule rail and regulator!!! and a vafc 2!!
you might want to look into an upgraded fuel system before you go turning up the boost. You will need bigger injectors, possibly an upgraded fuel pump, and an ems system like tuboedit, uberdata, or hondata. You can use the AFC and run bigger injectors, but i think you will sacrifice some driveability. Check out the turbo guide
The stock fuel rail is said to be stable up to 400hp, as well as the fuel lines. In my opinion you could have spent money on injectors instead of that AEM rail. Regardless though, you will need injectors so you don’t overload your stock ones. Some good injectors to find cheap are the DSM 450cc ones, they can be had for $50 shipped. I got mine for $35 shipped in great condition, so don’t pay over $50.
Look into the free standalones for your application. Uberdata and Turboedit are free, have a lot of support, and are easy to work with.
i have injectors!! 310’s it came with the kit
those 310 are probably to small, i maxed out 450’s myself at like 240 whp
Im reviving this antique thread, because its the only one I found while searching
I was planning on running 2.5 inch piping for my charge/IC piping. All Im aiming for is 300-350 to the wheels. Just doing my homework before I just start buying a bunch of parts that won’t work together. I planned on getting 2.5 inch inlet/outlets on the FMIC to maintain a consistent diameter to the TB. I have most of the parts laid out for my engine, turbo, and fmu setup. Might throw the boost on first, not to the 300hp extent, just to get fitment and lines laid so I dont screw up a shaved bay.