How could simple piping costing $450 be worth an extra 15-25hp?

 

Well, the biggest gains come from the elimination of the two pre-cats (on Federal Emissions cars) and the rest from better flow. Ill be dynoing my car next week with and without the Y-pipe and CAI. Ill let everyone know exactly what gains are seen.

 

Well, the biggest gains come from the elimination of the two pre-cats (on Federal Emissions cars) and the rest from better flow. Ill be dynoing my car next week with and without the Y-pipe and CAI. Ill let everyone know exactly what gains are seen.

 

uh hem.. spammer. haha j/p. that'll be great. i was really waitin' for someone to do a before and after dyno on those two products. are you gonna dyno once with just teh cai, once with just the y-pipe and once iwth all on and once stock? or just once stock adn once with all??? sory if i'm unclear, but i hope u get what i mean.

 

I will dyno bone stock, then with the Y-pipe and CAI, and then with the Y-pipe and stock intake. If time permits, I will also dyno with the CAI and the stock Y-pipe. Then, all combinations will be covered. Hopefully, these tests will be revealing and provide useful information.

 

 

[/I][/QUOTE]
PEPO-

The dyno tests will be serious, and done correctly. I am also a fan of 1/4 mile "dyno testing", but there are alot of variables in testing a car purely at the strip. Temperature, humidity, traction, and driver skill all play into it big time. These factors are lessened on the dyno and thats why I like to test in this way, as well as at the track. But, you are right, the real result is "How fast is your car?"

FYI, my best time with my 5 speed 2k SE is 15.02@94 mph with lousy 2.3-2.35 sec 60 foots. I live in Florida, so all of my runs this year have been in oppressive heat. Ive made probably 30-40 runs with the Max and it runs 15.0-15.1 almost everytime in 95F weather. We are just starting to get some cooler weather here so Im sure high 14's would be in the bag stock. As soon as I get the mods on, I will return to the track after dynoing and will report the results there as well. But, the times wont be comparable to when I ran in the summer seeing as how it will most likely be performed in much cooler temperatures. We are supposed to get some very cool days here this week! High in the mid 70's and lows in the 50's! YEEEHAA! Track time!

 

I would also be very curious as to the differences in the underhood versus CAI type intakes. I went with the CAI becuase of the high temperatures down here for alot of the year. I had an underhood intake on my supercharged VR6, and it was noticeably slower when the engine was hot and it was warm outside. As soon as I put on a CAI, it ran much more consistently and was less effected by engine heat and ambient temps.

Definitely let me know your results with the Hi Flow! I have an aquaintance down here that has the same 5 speed 2k Max as me who is also adding a Y-Pipe and the Stillen intake. We are dynoing our cars on the same dyno, on the same day with the same Y-pipes and the 2 differing intakes. We are doing our baseline tests tomorrow with no mods. Ive already baselined mine (194 hp/189 ft lb at the wheels)about 8 months ago, but the results are too far back to be comparable as I want these tests to be conclusive with as few variables as possible. Maybe well also both take our cars out the the highway, for a "real world" test of the CAI vs Stillen! Ill keep the forum posted on the results.

 

What does the Stillen Cali Y pipe change over the stock Cali spec Y pipe?

 

PEPO-

The dyno tests will be serious, and done correctly. I am also a fan of 1/4 mile "dyno testing", but there are alot of variables in testing a car purely at the strip. Temperature, humidity, traction, and driver skill all play into it big time. These factors are lessened on the dyno and thats why I like to test in this way, as well as at the track. But, you are right, the real result is "How fast is your car?"

FYI, my best time with my 5 speed 2k SE is 15.02@94 mph with lousy 2.3-2.35 sec 60 foots. I live in Florida, so all of my runs this year have been in oppressive heat. Ive made probably 30-40 runs with the Max and it runs 15.0-15.1 almost everytime in 95F weather. We are just starting to get some cooler weather here so Im sure high 14's would be in the bag stock. As soon as I get the mods on, I will return to the track after dynoing and will report the results there as well. But, the times wont be comparable to when I ran in the summer seeing as how it will most likely be performed in much cooler temperatures. We are supposed to get some very cool days here this week! High in the mid 70's and lows in the 50's! YEEEHAA! Track time! [/I][/QUOTE]

Madmax2k, thats the way to go, you are taking the test very seriously, me to. Your Max is pretty fast, although mine is Auto Trans, I live in Puerto Rico wihch is hot and hummid like in Florida but we dont have cool winter days. Im anxious to see your results, plase reply my EMail is peporuiz@yahoo.com , good luck!

 

Madmax2k, thats the way to go, you are taking the test very seriously, me to. Your Max is pretty fast, although mine is Auto Trans, I live in Puerto Rico wihch is hot and hummid like in Florida but we dont have cool winter days. Im anxious to see your results, plase reply my EMail is peporuiz@yahoo.com , good luck! [/I][/QUOTE]

Yeah, I know what that tropical weather is like! I used to live in Miami and its like that down there, hardly ever cool. Im now in Tampa, where we get a break during the winter where is usually in the lower-mid 70's, which is welcome.

Ill be sure to send you the results of the tests.

 

I believe the Cali spec Y-pipe does not remove all of the precats due to their specific emissions situation. Supposedly, the Cali spec ECU's wont allow all cats to be yanked, while the Fed Spec cars dont mind apparently.