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Forum namePerformance/Engine
Topic subjectquestion about mods and gains...
Topic URLhttps://forums.2gnt.com/dcboard.php?az=show_topic&forum=i5&topic_id=27452
27452, question about mods and gains...
Posted by woppishbob, Jul-14-02 11:35 AM
Alright guys...I've had my 97 talon esi for about 2 months now. Right now I just have a short ram intake on it and am debating other mods. I was thinking about getting a gst muffler, afx udp, header(probably 4-2-1),and a high flow cat. Will I see some nice gains from these?? I want to keep my talon fairly quiet but still make some decent power. Please tell me what you all think and any helpful suggestions. Thanks a lot guys!
27453, RE: question about mods and gains...
Posted by Da0utlaw, Jul-14-02 11:50 AM
I think if you did that stuff you would notice nice gains..I don't think you would be disappointed. :thumbsup
27454, RE: question about mods and gains...
Posted by OZ_GS, Jul-14-02 02:10 PM
I have had my 99 for about 2 months now and have installed everything in my sig. My car is quite a bit faster than it was stock. I can at least keep up with some V6's now and even beat some.

Chad
27455, RE: question about mods and gains...
Posted by RIeclipse, Jul-14-02 03:17 PM
what is AFX UDP??????
27456, RE: question about mods and gains...
Posted by RIeclipse, Jul-14-02 03:28 PM
stupid stupid me, under drive pulley lol
27457, this should help (I've got to start writing this stuff down...)
Posted by VX100, Jul-15-02 01:49 AM
This is a rule of thumb for our cars, in terms of peak hp vs. 1/4 mile improvement, non turbo, at our weight, making our power levels, every tenth of a second is about 5 hp or so (that is a VERY rough estimate!). Of course, WHERE you gain hp is just as important. You could gain no peak hp and still see a 1/4 mile improvement.

First, I think the essential NT bolt on power mods you should have are a GS-T muffler, a CAI, and an underdrive pulley.

The short ram intake is helping you out, but a cold air setup is more effective. A short ram is good (for a 1/4 mile improvement) of about 0.15 seconds or so, a CAI should be a quarter to three tenths (at least that's what I saw for an improvement). CAI is the best NT mod in my opinion.

A gs-t muffler will give you enough air flow out through the exhaust without sounding too loud. I think (in terms of improved 1/4 mile performance, if you drag race) it should give you a tenth or so (I can't be sure, I've never raced without the muffler). It is defenitely worth it, and it's cheap and looks good too :) one of the essentials for our cars.

In my experience (and many other people's experience) a header will not improve your 1/4 mile times and won't add much (if any) peak horsepower, BUT that doesn't mean it is a bad mod becasue the header will improve your low end to mid range power. A header seems to work best at around 3000-3500 rpms, which is too low of an improvement for drag racing but is good for street driving. Best bet is to find the least expensive one you can which is painted or ceramic coated.

A high flow cat will add maybe 2 hp, that's it, not really worth it AT THIS POINT. If you have a turbo or lots of NT mods (I mean lots!) then it is far more effective, especially for turbo owners. If you don't care about check engine lights, emissions, or fix it tickets from cops, go for a test pipe. It will be cheaper and it should give more of an improvement than any cat (just keep the pipe diameter the same as the rest of the exhaust). A test pipe might knock off a tenth, maybe. As The1bill would say, exhaust (except for the muffler) isn't that bad, it's the intake needs the help.

An underdrive pulley adds a little bit of power everywhere. The difference in performance feels about the same as the difference between driving with the air conditioner on vs. off. You will notice the improvement everywhere in the rpm rage, but it will be most noticeable in the low end (since there is so little low end to begin with). You can cruise in 5th gear at a lower rpm after teh UDP, and it should take about a tenth off your 1/4 mile time (a great mod for $160, if you buy an AFX pulley).

Hope that helps for the bolt ons.
27458, RE: this should help (I've got to start writing this stuff down...)
Posted by dougie2, Jul-15-02 05:13 AM
Damn... nice post Todd! I think this should be in the "things we've seen before" forum.
27459, RE: this should help (I've got to start writing this stuff down...)
Posted by j92, Jul-15-02 06:55 AM
I've heard stories of dimming of lights and air conditioning not working with the AFX UDP. What are the odds of this happening and is there any way to prevent it. (I have black outs so it would be a killer if my lights were dim) Thanks!

Jay

27460, RE: this should help (I've got to start writing this stuff down...)
Posted by VX100, Jul-16-02 01:36 AM
yup, it should be in "things we've seen before" I'll work on getting it there

and, from what I know, most people don't have problems with the car's lights dimming from the UDP
27461, RE: question about mods and gains...
Posted by woppishbob, Jul-15-02 03:57 AM
Thanks for posting back so quickly guys...It was very helpful, I'll be sure and let you know how the modding is going! p.s. anyone sellin any parts that I would want let me know!! Hee hee, thanks again