DerekDaniel Posted August 18, 2012 Share Posted August 18, 2012 Does the SPT intake for 08 legacy GT need a tune? I was told before that SPT was the only intake that can be used without a tune. How valid is this? thanks Link to comment Share on other sites More sharing options...
wera832 Posted August 18, 2012 Share Posted August 18, 2012 If its the same as any other CAI it will work wihtout it ,but ,to get the fullest benifit of it a tune would be in order - Link to comment Share on other sites More sharing options...
DerekDaniel Posted August 18, 2012 Author Share Posted August 18, 2012 ok, I know for best results get a tune. I really want to know if I get it, and put it on will it be ok for a few months until, I am ready for DP re-tune, hopefully in the spring..... or, will it be a waist of money and no purpose, other than noise enhancer without tune? And possibly cause more problems than good like heat-soak, Maf and AFR readings to be off, that have been reported by other aftermarket CAIs' like perrin; without a tune? I have searched and all I got was conflicting answers. Does anyone have any personal experience with the SPT CAI? I know SPT is supposed to be safe and doesnt void warranty. I also wanna know others personal experience with this product, and if they noticed any difference in datalogs before and after install?? and if they were positive or negative results lol Thanks Link to comment Share on other sites More sharing options...
scoobydoobie Posted August 18, 2012 Share Posted August 18, 2012 Spt is not a Cai, its a short ram. Stock or AEM intakes are cold air systems. Personally I wouldn't bother with it, known to be the worst aftermarket intake available for our cars. Link to comment Share on other sites More sharing options...
fahr_side Posted August 19, 2012 Share Posted August 19, 2012 Personally I wouldn't bother with it, known to be the worst aftermarket intake available for our cars. +1 It doesn't need a tune, it needs to be killed with fire. You'll get better ROI at a strip club than at the SPT store. You do NOT need an intake for the power level you're shooting for, nor will this intake be anything but a pain in your ass. I point-blank refuse to tune cars with these intakes installed. No exception. Stay stock. Paint the stocker some random loud color if you need some bling under the hood. Obligatory '[URL="http://legacygt.com/forums/showthread.php/2008-gh8-238668.html?t=238668"]build thread[/URL]' Increased capacity to 2.7 liters, still turbo, but no longer need spark plugs. Link to comment Share on other sites More sharing options...
Aruss87 Posted August 19, 2012 Share Posted August 19, 2012 +1 It doesn't need a tune, it needs to be killed with fire. You'll get better ROI at a strip club than at the SPT store. You do NOT need an intake for the power level you're shooting for, nor will this intake be anything but a pain in your ass. I point-blank refuse to tune cars with these intakes installed. No exception. Stay stock. Paint the stocker some random loud color if you need some bling under the hood. Good to know!! Link to comment Share on other sites More sharing options...
DerekDaniel Posted August 20, 2012 Author Share Posted August 20, 2012 Awesome thanks for clarification on short ram, scoobie doobie, and info Fahr side and saving me some money I can use towards buying some spec b. under body parts. Link to comment Share on other sites More sharing options...
Heedz Posted August 21, 2012 Share Posted August 21, 2012 It won't be any gains to performance, just noise and engine bay bling. But who has one? me just cause? Link to comment Share on other sites More sharing options...
Brett Posted August 21, 2012 Share Posted August 21, 2012 spt's don't hurt anything, nor improve performance. i personally like how loud it is. Link to comment Share on other sites More sharing options...
fahr_side Posted August 22, 2012 Share Posted August 22, 2012 spt's don't hurt anything, nor improve performance. i personally like how loud it is. Just try scaling the MAF with one installed and you'll change your mind pretty damn quickly. Hell, just log AFR error on your car and you'll see. Perhaps your AFR bouncing around at certain load or rev ranges doesn't concern you, and you may get by without incurring immediate damage. Being insensitive to how rough your tune is doesn't make it okay. Obligatory '[URL="http://legacygt.com/forums/showthread.php/2008-gh8-238668.html?t=238668"]build thread[/URL]' Increased capacity to 2.7 liters, still turbo, but no longer need spark plugs. Link to comment Share on other sites More sharing options...
ssbtech Posted August 22, 2012 Share Posted August 22, 2012 Spt is not a Cai, its a short ram. What's the difference? Link to comment Share on other sites More sharing options...
fahr_side Posted August 22, 2012 Share Posted August 22, 2012 What's the difference? Short ram is just that... a tube just long enough for the MAF sensor to dangle in with a filter stuck on the end... right behind the radiator. A CAI is longer and makes some attempt to pull cooler air from behind the bumper or inside the fender. Some of them have dividers or boxes to try to avoid feeding on the hottest air under the hood. Airflow becomes turbulent when passing through air filters and turning comers. It straightens and smoothes out flowing in straight tubes. Then there are resonance effects from the design of the upstream turbo inlet piping. Together these effects can result in turbulent eddies or areas of high or low pressure which can move along the intake with changing air speed and flow volume. Such effects make conditions at the MAF sensor unstable and readings unreliable. The shorter inlets seem more prone to these issues than longer ones, but in theory should allow more total flow. You need to be drawing a lot of air to make it worthwhile ingesting air heated by the radiator and hot engine. I'd only use one with a large rotated turbo and either speed-density fueling or a blow-through MAF setup. Obligatory '[URL="http://legacygt.com/forums/showthread.php/2008-gh8-238668.html?t=238668"]build thread[/URL]' Increased capacity to 2.7 liters, still turbo, but no longer need spark plugs. Link to comment Share on other sites More sharing options...
Brett Posted August 22, 2012 Share Posted August 22, 2012 Short ram is just that... a tube just long enough for the MAF sensor to dangle in with a filter stuck on the end... right behind the radiator. A CAI is longer and makes some attempt to pull cooler air from behind the bumper or inside the fender. Some of them have dividers or boxes to try to avoid feeding on the hottest air under the hood. Airflow becomes turbulent when passing through air filters and turning comers. It straightens and smoothes out flowing in straight tubes. Then there are resonance effects from the design of the upstream turbo inlet piping. Together these effects can result in turbulent eddies or areas of high or low pressure which can move along the intake with changing air speed and flow volume. Such effects make conditions at the MAF sensor unstable and readings unreliable. The shorter inlets seem more prone to these issues than longer ones, but in theory should allow more total flow. You need to be drawing a lot of air to make it worthwhile ingesting air heated by the radiator and hot engine. I'd only use one with a large rotated turbo and either speed-density fueling or a blow-through MAF setup. now are all short rams bad, or just the spt? enlighten me. mine was on the car when i bought it and there was no stock box either Link to comment Share on other sites More sharing options...
DerekDaniel Posted August 22, 2012 Author Share Posted August 22, 2012 I had an spt on a wrx with a catbck that came from the factory like that, no issues but that was an 07... I think the 08 and up they had problems with design and is not so good for car even spt. oh well I may get one some day I did like the sound on the wrx but the GT engine bay seems to get alot hotter and may be a prob with this kind of intake Link to comment Share on other sites More sharing options...
scoobydoobie Posted August 23, 2012 Share Posted August 23, 2012 Cooler, denser air is better for induction. A filter on a stick that sits in the engine bay pulling in hot air isn't a great idea. Heat shielding helps with that to some degree, but not much. Link to comment Share on other sites More sharing options...
DerekDaniel Posted August 23, 2012 Author Share Posted August 23, 2012 lol "filter on a stick" Link to comment Share on other sites More sharing options...
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