Supercharged/TurbochargedThe increase in air/fuel pressure above atmospheric pressure in the intake system caused by the action of a supercharger or turbocharger attached to an engine.
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View Poll Results: go with SSIM or stick with stock IM no vias?
I wanna get you guys opinion on this. We all know it is fact that the SSIM does provide gain all the way to the right of the powerband(high rpms), which is great for high reving vq's +6k, we also know that a stock IM with just vias butterfly removed provides overall gain without loosing all the low/mid power of the SSIM, now this has been shown on dyno's and numerous discussion but mostly on n/a applications.
My question is: Should I go with the SSIM although I am not extending the rev limiter (another discussion so no comments on why im leaving stock limiter plz ), or should I stick to the stock IM with no vias how I have now. I am feeling most of my power is in the mid range, uptop dosnt shine as say 5k, once it gets near the 6k power just feels like its staying linear or slowly falling (which it does I think).
Do you guys think, me being auto, stock limiter, the low end loss is worth the top end gain of the SSIM also considering after every shift it lands at around 4200 rpm.?
I would just do the block plate, not the ssim. I could tell a huge difference going from stock manifold to the block plate. However; I have no experience using an ssim manifold. The car felt MUCH stronger on the top end and especially in the mid range after the VIAS removal. My car is S/Ced and has a raised rev limiter but I barely go past 6500 rpms. IMO there is no reason to do the ssim and lose the midrange power when you could make more (stock rev limit) with the VIAS block plate.
Hope this helps!
Zack
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I would just do the block plate, not the ssim. I could tell a huge difference going from stock manifold to the block plate. However; I have no experience using an ssim manifold. The car felt MUCH stronger on the top end and especially in the mid range after the VIAS removal. My car is S/Ced and has a raised rev limiter but I barely go past 6500 rpms. IMO there is no reason to do the ssim and lose the midrange power when you could make more (stock rev limit) with the VIAS block plate.
Hope this helps!
Zack
Thanx for the input man, it does help specially since your FI as well. I was just looking over the Dyno comparo thread of the different setups, and yea I think the vias block is the best way to go.
It depends on high high you plan to rev. also, the SSIM might be stronger in an FI application than it is in NA, since youre making better use of the increase of plenum volume
I dont plan to rev over the stock limiter, shiftpoints are around 6100 or so. I was looking over my buddies dyno (95blkmax), he had SSIM at 9psi stock timing, and he basically had his entire torque and hp shifted over to the right. nothing is going on in the mid/low range all the action is up top. I remember feeling his car and it was noticible, when you go on it at low rpm, it was just there, then as soon as high rpms came in it woke up.
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Last edited by streetzlegend; 10-12-2009 at 11:00 AM.
dude, you have a spare intake. gut it (SSIM) when youre ready to dyno, swap it out on the dyno and find out. thats what i would do. im thinking i would go for the ssim for my predictions as far as making more power. but the only thing i would worry about and being boosted more important than na (blowing **** up) is how to tune, the 350z intakes design keeps one particular cyl running alot leaner than the rest (Frank told me which one but i forgot) when boosted so he tunes the Zs to high 10s, im not sure how expesnsive it is, but maybe having someone flow test the intake is not such a bad idea.if they are pretty even then you know you can safely tune higher. Eddie was not boosting very much, and im guessing the safc2 sucked bc that drop in power after 52500 rpm is wack...
dude, you have a spare intake. gut it (SSIM) when youre ready to dyno, swap it out on the dyno and find out. thats what i would do. im thinking i would go for the ssim for my predictions as far as making more power. but the only thing i would worry about and being boosted more important than na (blowing **** up) is how to tune, the 350z intakes design keeps one particular cyl running alot leaner than the rest (Frank told me which one but i forgot) when boosted so he tunes the Zs to high 10s, im not sure how expesnsive it is, but maybe having someone flow test the intake is not such a bad idea.if they are pretty even then you know you can safely tune higher. Eddie was not boosting very much, and im guessing the safc2 sucked bc that drop in power after 52500 rpm is wack...
Nah eddy at that time had the emanage, reason the power dropped was because he was knocking since a/f was getting lean. I am going to stick with the none SSIM manifold for now. When ever I dyno, ill probably bring the gutted manifold to get back to back results.
yeah, that will work, boost is not the same as na imo, youre getting air forced into the motor, so i want to see that dyno comparison, dont think the rpm will differ so much, but you already have some lag in the overall system which probably will help the 60 ft times
yeah, that will work, boost is not the same as na imo, youre getting air forced into the motor, so i want to see that dyno comparison, dont think the rpm will differ so much, but you already have some lag in the overall system which probably will help the 60 ft times
well right now i dont have lag, whcih is why I am sticking with none SSIM, your refering to lag from the turbo back there? you keep saying that!!!! how many times must I say thats a false statement!!!! lol. my ****s even spooling sooner and faster than the STS 350z turbo guys.
), or should I stick to the stock IM with no vias how I have now. I am feeling most of my power is in the mid range, uptop dosnt shine as say 5k, once it gets near the 6k power just feels like its staying linear or slowly falling (which it does I think). 
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