boost controller

[tjkevo8]

i was wondering if a boost controller was worth the money for the stock turbo. also how much boost should be run on the stock turbo.

[SicLanEvo]

yes it is worth it on the stock turbo! but what other mods do you have? its not going to be super effective without proper mods and tune! here is the typical mod path for a evo 8

-Boost gauge, first thing!
-Basic matience ie. Plugs wires and other general stuff.
-turboback exhaust
-intake
-BOV if you have the OEM plastic one
-Fuel pump
-tune

Optional:
-Intercooler pipes
-Front mount Intercooler
-Cams
-Retune if you get these parts....

You should be able to run around 22-24psi with those mods and no issues.

I have all this on my 03 stock turbo plus alky injection and I have about 400awhp and no lag time

[tjkevo8]

I have a catback, upper ic pipes, HKS bov, and replaced the air filter.

[SicLanEvo]

get a fuel pump, downpipe, test pipe, is your BOV recirc or venting...... get a lower IC pipe....and get tuned!

[SicLanEvo]

oh yeah and a good mbc or ebc thats your call....

[k2big88]

i just wanted to piggy back on the subject of MBC's. do i have to use a mbc with a tune?can i use the stock boost setting? i want to run a tbe, tune, and 255lph fuel pump for now. thanks

[SicLanEvo]

you dont have to but your ecu can only compensate for so much extra air being forced in the motor. Honestly I think the only reason someone would run a MBC at the stock setting is to stop boost taper. To get the most out of your car you should def get a tune, even if its for the stock setup, this will lean it out a bit and give you better AFR. TBE, fuel pump and a tune should give you a decent bump in power.

[03EV0LUTI0N]

just to piggy back on whats already been said..... you can get a good MBC off ebay for like 20 bucks... NXS makes on for 19.99 i believe.. a friend of mine made 500+ on his DSM pushing over 30psi on it..

[SicLanEvo]

i wouldnt trust my turbo and motor to a $20 boost controller. if the spring fails or there is a flaw it could be a a major overboost issue.

[03EV0LUTI0N]

that could happen with any MBC.. Back when Slow Boy Racing first started Mike Hummel was manufacturing his own MBC's and selling them for dirt cheap.. i thought the same thing...he told me... alot of them utlize the same parts that forge.. turbonetics any name brand MBC... the design may be different... but the application is still the same.. more often then not your buying the brand name..

[SicLanEvo]

^^ i disagree i have been thru about 8-10 different boost controllers all with pros and cons. look around and search some do work better then others. i'm not saying buy the most exspensive one, just do the reasearch and see which ones work the best and are easiest to adjust. some still taper real bad and some spike to high. i will be switching to ecu controlled boost coming up because for the evos mbc's are a thing of the past now. great bang for the buck, but i have seen excellent results on numerous evos.

[rookhoe]

A Hallman is a pretty reliable MBC. But you would get better boost control and faster spooling of the turbo with ECU controlled boost.