Conversion of Air Filters

Hi Glen

This guy has performed the conversion he is a friend of "testarossa lover" on here so maybe shoot him a pm

Tr boy
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Technically, this is complete nonsens - just because the engine is sucking hot air and this means a massive lack of power.

If you want a slightly better performance than adding a simple K&N exchange filter (best bang for the buck) whilst being not afraid to spent a lot of $$$, then check GruppeM´s airbox for the testarossa.

http://www.gmpperformance.com/index.cfm?PG=detail&PID=203168

 

+1

This Testarossa produces a massive amount of heat back there and those filters are right in the stream of it.
is there any reason to believe the stock setup is somehow restrictive?

Just curious.

 

The stock setup works perfect - no need for an upgrade - except the K&N.

I dared a closer look to this remarkable engine bay above. So much love spent...3M fake carbon foil...extra cavallinos all over...well, i don´t see any deeper sense to do such harm to a tr, but i respect the time spent.

 

Hi Glenn,

James is a member in our TR group Prancing Thunder also here on FChat under JamesRobba. He loves his TR...

 

To be honest I don't love the posted conversion, I prefer the originality all the time
Having said that, I find the orginal set up a pain to instal and disintal, also it covers important area for basic mantenance so you need to take it off often

I might consider something less "flashy".....

 

hello to all my ferrari brothers i have performed this mod on the air-cleaner system i was performing maint one day had the air cleaner off and just took it out for a spin , boy did it run good you could hear it so i performed a mod to the air-cleaners the engine breaths alot better i can feel it with the air-cleaners i have on there which are k/n i have picked up 15 -20 hp for the car was dyno @ over 400 hp so please don't hate this is not for all it for me and for all testarossa that i have raced or wanted to take me one i have kicked there butt pretty good for it still bring in cool air for the cleaners are on the top sucking in cool air the old air cleaner bring in a little air you can hear it in the back suck air and yes the air mixture was change it's a rocket ship but it for me not all i still have the old system which was redone . so if i ever sell it it will go back on i feel this system bring in more air better and it gets the job done i also did the exhaust system you guys would love it ,there is no better sound out there like mind so i mind told by many thank you for all you emails but please be cool for it for me and i love it thank you ferrari brother i will see you at super car sunday oct ferrari and lambo end of the month .any one that want to drive my car that has a testarossa and see for you self please do i will see you there best jim

 

Thanks for posting. Could you elaborate a bit on the dyno testing that was done. Did you do a before and after test at the same time on the same dyno? In the end, all that matters is that you enjoy your car, but looking at the photos I am sincerely struggling to see how that setup doesn't suck in gobs of hot air and actually decrease HP. The intakes appear to be sitting right on top of each bank of cylinders. If, as you seem to suggest, the stock intake is restrictive, than maybe there is another alternative available to tuners that would be less restrictive, but still draw air from a cooler part of the engine bay... Just spitballing here because I am not really into the tuning scene, but I do find this stuff interesting.



Any further information would be appreciated.

Thanks again

 

Quick question about K&N filters, do they rally make a difference? I've heard dozens and dozens of stories ranging from "you gain hp", to "it makes no difference whatsoever", to "it makes things worse".

Are there any tangible data on this?

 

Not that I get to drive at 150 mph , but one other issues is (I think) that they tried to be smart and put the engine air intake in an area where there is a net positive pressure of cold outside air (even at the ~70 mph test speed) as the air wraps over the C-pillars and then back down onto the horizontal plane with forward coachwork motion (and if I'm reading the data correctly on page 66 of GB Progetti tests 14-20, the 512TR split dual intakes are more effective for this than the centered, single TR intake design) -- but you won't see this effect at all on a stationary dyno (nor that modified K&N design).

 

Science!

 

hello ferrari guys again , love your threads . the car was dyno after the air system was on but the bottom line is that the car breaths better the air cleaners are not on the cyl's they are behind the cyl's above the dist. caps the air-cleaners are a inch away from the back grill i could drive the car for about 2 hours and still the air filters are not hot ,the area the the air filters are in is more cold air then hot nothing under the air cleaners and the air filters are on top sucking in cold air just like the org air filter but sucking in more air so the car breaths better you have to drive the car i am not just bs you guys i am not selling this system someone took a picture and just pttting it out there for i have been running this for 2 years with no problem thank you all for your infor very cool . best jim .

 

Are you saying that you have before and after hp data from the same dyno on the same day while only changing the air intake system? What is your exhaust configuration? -- obviously the silencer is aftermarket, but do/did you have stock precats and cats in place for the over 400 hp measurement?

(No hate -- just interested in information...)

 

Awaiting dynoplot - i doubt that gain.

 

""the car was dyno after the air system was on "" so no reference before. You cannot compare a dyno with with the factory numbers.
If another exhaust is on that can have influence too. You even cannot compare numbers from 2 different dyno`s with eachother..(you can compare, but that is like comparing appels and bananas)
Only way is before and after on same dyno.

 

hello again , yes i performed the dyno with the exhaust system on and the air system you guys are correct but the bottom line the car runs alot better i have raced other testarossas and i can kick there butt's why! well i think it has to do with the air-system and exhaust system the throttle has more get up and go" alot faster" . all my temps on the car run cooler even in stop and go i only have 13 k on this i don't drive far maybe for 1 hour to car shows or a nice drive i don't race it but when the chance is there bring it on i have race a gtr skyline i feel pretty fast car i was right there with it. yes the exhaust system was done no cats , no other items on the exhaust system it was coated inside and out even being a 12 cyl it does sound like a 430 i have been told and told . i was thinging about all your threads about maybe looking at heat shields under the air-filters so maybe it would bring in more cool air and then have it dyno again love you ideas thank you to all for the guy that put the 4 k air system on and said that it about the money that system i did look into at the time it was 2k it's up to 4k and i think they sold one of them ,it was junk and this was years ago also please look at the weight the old air-systems weights alot this system weights about 5 lbs .plus the old system i did run a kn filter it did nothing so i made my own just for me that is the fun about the testarossa only i have it . thank you jim

 

hello, i looked into this system years ago it was junk plus they wanted 2k so please get don't hate ,they want 4k now,for this is the fun of it making your own . the other one you talk about is made in japen correct and they only sold one plus it did not work on installation, i had a friend that put it on his car it did not fit it had to go back , have you put one on i don't think so, thank you jim be cool

 

I'd put more of the gain being on the exhaust side -- but thanks for the information, and please let us know if you ever get some dyno data that separates the gain from each factor.

 

hello steve , reading all the threads i am making up some heat shields just to see if i get any better perfomance out of the system . the heat shields will go under the air filters this way the filters should take in more cold air from the top they would act like scoops under the filters and keep the filters from getting hot . i am also drawing up a system to try to induct cold air from under the car ,my ducting air in like" ram air system" what do you think of this just looking for new ideas . thank you

 

heads up on my exhaust system i have capristo but level 3 system , no cats no pre-cats and i remade all the exhaust piping they were coated inside and out ,heat treated i tried to take out of the bents out, it's sound unreal. you can hear it blocks away but the performance is what counts i will put a picture of it on ferrari chat and see what people think i have looked at alot of testarossa exhaust systems and i feel that the capristo level 3 is the best out here and it has the meanest sounds . but when i added the air system the preformance got better and so did the sounds of the car so i been told and told . be cool jim . love ferrari !