I was at the dyno when it went. man that sucked. i felt so bad for him.
I was at the dyno when it went. man that sucked. i felt so bad for him.
hey man don't get me wrong an upgraded SMIC works plenty good for the DD but I have to admit that after buying the SMIC + Harpipes + couplers your pretty much at the price of the FMIC setup...and after about 1 hr. of highway driving in the summer good luck not getting heatsoaked.
I could probably survive with my SMIC but I think that I might as well move on up to the next step for a little more umph...plus it looks cooler (headbang)
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- 2002 BJFW, 2007 BK3P, 1979 SA22C, 2005 BK3P
if you are not pushing enough boost to fill that large core, you are creating more lag and not being remotely efficient. volumetric efficiency and the science behind it dictates that a larger core sitting behind the grill is not always better. if you want to throw science into the breeze thats fine too - with a bell engineering small side mount at 8psi i was able to walk all over comparable proteges at the same or slightly higher boost with them having front mount intercoolers.
I don't get any lag on my front mount set-up, and like I said I've run both back to back. The FMIC was exponentially more effecient, doesn't lag, and doesn't heatsoak after 1 hard pull. The SMIC would be useless after 1 or 2 pulls.
I'll take my real world comparison over "science" anyday.
Also, the difference in the volumetric size of the SMIC and a properly sized FMIC core is pretty small, and with the right piping routing, you won't even notice it even at as low as 8 psi. Sure if you get a huge FMIC you're gonna lag, but if you know anything about modding cars you would know that the increased volume is too much on a big core.
Again, I have tried both set-ups, back to back, so you can try to argue your point all you want, with science, or whatever you want , but it's not the same as my first hand experience. I tried it on the same car, with the same mods, and the only change was the intercooler. If that is not a test of which is better, I don't know what is.
I'll take my real world comparison over "science" anyday.
Also, the difference in the volumetric size of the SMIC and a properly sized FMIC core is pretty small, and with the right piping routing, you won't even notice it even at as low as 8 psi. Sure if you get a huge FMIC you're gonna lag, but if you know anything about modding cars you would know that the increased volume is too much on a big core.
Again, I have tried both set-ups, back to back, so you can try to argue your point all you want, with science, or whatever you want , but it's not the same as my first hand experience. I tried it on the same car, with the same mods, and the only change was the intercooler. If that is not a test of which is better, I don't know what is.
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TXMazdaSpeeder
T is for Turbo
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- 2003 Black Mica MSP #566
I think fmic's under 10 psi on a GT25 would be perfectly fine, especially if you did what i did on my smic and run an h2o sprayer. But to run a GT28 even at less than pis, id be scared shitless of the side mount. These motors are VERY finicky.
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- 2002 BJFW, 2007 BK3P, 1979 SA22C, 2005 BK3P
ok, and by that right likewise my first hand experience and the first hand experience of others in this thread or on the forum is therefore equally valid. what works for you on your car is great and vice versa. what front mount do you have? that really can make all the difference.
and you touched on a real key point;
Sure if you get a huge FMIC you're gonna lag, but if you know anything about modding cars you would know that the increased volume is too much on a big core.
problem is, 90% of the people out there don't know that, and need to know its not as simple as "FMIC > SMIC". i have seen so many butchered up and poor running MSPs in and out of my garage thanks to this "knowledge" its not even funny.
Well, I guess we do agree to a point. 
I have the HiBoost core, but we modified the piping, so it's shorter now. I actually had a pic of the Turbo Hoses V2 SMIC next to the HiBoost core, and the difference in size is very small. I believe the people getting lag from FMICs have piping that is too long (HiBoost was ridiculously long before we re-routed), or cores that are too large.
I have the HiBoost core, but we modified the piping, so it's shorter now. I actually had a pic of the Turbo Hoses V2 SMIC next to the HiBoost core, and the difference in size is very small. I believe the people getting lag from FMICs have piping that is too long (HiBoost was ridiculously long before we re-routed), or cores that are too large.
4
43975
This is great great reading and it increases my knowledge!! But this topic has been at great debate for some time.
4
43975
In all reality I have no problem running 5 psi untill I get the supporting mods in line. I would rather that then be running 0 psi with a failed engine
Well, I guess we do agree to a point.
I have the HiBoost core, but we modified the piping, so it's shorter now. I actually had a pic of the Turbo Hoses V2 SMIC next to the HiBoost core, and the difference in size is very small. I believe the people getting lag from FMICs have piping that is too long (HiBoost was ridiculously long before we re-routed), or cores that are too large.
when i switched from the stock smic setup to the hiboost fmic, i did not experience any lag at all. if anything, the car was more responsive.
my father drove the car before and after, and noticed the same thing.
Everything is apart now to replace the exhuast mani, but I'll get some pics in a few weeks once everything is back together.
nazgul350r
Member
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- 03 MSP & 08 CX-9 GT
Getting a FMIC is like getting the GT28 the first time around. do it right the first time.
well im running a td04-13t turbo with a custom fmic set up at 6 to 7 psi, and there is no lag what so ever. idk if it is the air filter directly on the turbo, the 2.25 intercooler piping, small amount of boost, intercooler size, hiboost exhaust manifold with full exhaust, or the turbo its self?
but im sure that all helps, lol
but im sure that all helps, lol
4
43975
If you have the air filter on the turbo it self you must venting to air. how does sucking all that hot air in from that area feel. I would think it would make performace suffer.
It works very well for me. I don't miss the intake one bit. It might be a bit loud for a few but it's very easy to deal with. You'll definately know when your making boost but so will everyone else.
4
43975
so you are venting to air?? Cause the BPV connects to the intake pipe. unless you rerouted it some how.
