I'm New and Want MORE POWER for my IS300 - Page 4 - Lexus IS Forum
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post #46 of 141 (permalink) Old 02-05-2008, 09:51 PM
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Originally Posted by nilescozy View Post
how much quicker do you think that could make it?
In what aspect...time? I don't know...I haven't timed my car 0-60 and stuff. Maybe I will soon, sounds like a good time

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This is the future of engine technology. There is a replacement for displacement, and it's called efficiency.
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post #47 of 141 (permalink) Old 02-05-2008, 10:18 PM
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Originally Posted by nilescozy View Post
how much quicker do you think that could make it?
Dont expect drastic changes with just bolt on parts. If you want to see a huge difference, you are gonna have to go with boost.

03 TCM Sportdesign IS300
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post #48 of 141 (permalink) Old 02-06-2008, 11:10 AM
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Originally Posted by JPLexIS View Post
Dont expect drastic changes with just bolt on parts. If you want to see a huge difference, you are gonna have to go with boost.
ha well I'm 17. And I work but it would take me forever to make enough money. what's the best boost? which do you have?
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post #49 of 141 (permalink) Old 04-29-2008, 02:01 PM
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Yes thank you!
+rep!
But I was wondering if they could be incorporated under each scenario for people to view. You know instead of digging them up sig by sig.
i have all the upgrades,(scenario 3) i did it all on my own by hear say, and this thread deffinatly would have helped. but i just got done putting all the parts on, and about to go to the tune shop this weekend. I will post the results, to hopefully help other members in their decision making.

hks cam gear, mazzuri headers, safc 2,vortech kit coming soon
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post #50 of 141 (permalink) Old 05-05-2008, 12:36 PM
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Awesome tread!!! Compliment all that with a lightweight flywheel................wwwwweeeeeeeeee!!!!
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post #51 of 141 (permalink) Old 05-08-2008, 11:58 PM
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Nice writeup, thanks.

I would like to add that a nice benefit to a header or exhaust is that you are shedding some weight over the stock systems as well, which helps. I'm sure that stock cast iron header is pretty heavy compared to an aftermarket stainless steel unit.

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post #52 of 141 (permalink) Old 06-12-2008, 10:13 AM
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Great Write Up! Wish I saw this when I first started. I went thru 2 intakes before I came across the SRT. I'm thinking of cams next.

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post #53 of 141 (permalink) Old 06-28-2008, 04:06 AM
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Very Nice Thread!!
Thanks A Bunch!
+rep!!
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post #54 of 141 (permalink) Old 07-31-2008, 01:23 PM
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Quote:
Originally Posted by longnights View Post


Y-Pipe
Keep the stock one!
Why?
The stock y pipe will put some restriction in the exhaust which will keep some backpressure around to make more torque. An exhaust can actually be not restrictive enough; some of the people on the forum have actually lost power when they added a y-pipe to their exhaust system. Keeping the stock y-pipe will also keep the last of the stock catalytic converters, this will clean up the exhaust so you donít get the black soot commonly seen on the rear bumpers of cars without catalytic converters. All of this together will keep down the volume of your system as well.
so i shouldnt go with a xerd header/y pipe and ws2 catback?
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post #55 of 141 (permalink) Old 07-31-2008, 03:38 PM
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Depends on what you're looking for really.

If you like it LOUD and SMELLY and a loss of BACK-PRESSURE (that's up to you if you believe all that) and a fast TOP END car, put the y pipe in.

If you like it more QUIET until you step on it, not as much of a GAS SMELL, a little more TORQUE and like a CLEANER rear end... don't put it in.

I didn't put in a y-pipe and I'm perfectly happy with it.

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post #56 of 141 (permalink) Old 08-01-2008, 09:03 AM
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thanks for the input +rep
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post #57 of 141 (permalink) Old 08-02-2008, 11:56 AM
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this might have been answered already, i'm at work and i dont have time to read thru. the entire thread. so i apologize if it's been answered.

i wanna make sure i'm getting this right. the safc is unnecessary if the SRT intake already has the ecu installed??

thanks in advance!
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post #58 of 141 (permalink) Old 08-02-2008, 12:35 PM
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Originally Posted by rhino2515 View Post
this might have been answered already, i'm at work and i dont have time to read thru. the entire thread. so i apologize if it's been answered.

i wanna make sure i'm getting this right. the safc is unnecessary if the SRT intake already has the ecu installed??

thanks in advance!
yep it is unnecessary. However you can do what i'm doing and use the safc in place of the r-ecu it comes with. The safc will allow for more fine tunning and ultimately a lil more horsepower

2004 e-shift IS300 239 rwhp 235rwtq Going fast without going FASTARRRR!
BC Stage 2 Cams/springs/retainers, CP Pistons 12.5:1, TT internals, ported/ polished head, , Area 51 Intake, EMU, custom 2.5in Magnaflow exhaust, HKS Cam Gear, Tokico Illuminas, Eibach Pro Kit, L-Tuned Sways, Rays Versus Campionato SS6, Altezza mesh grill, AAC CF,
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post #59 of 141 (permalink) Old 08-02-2008, 12:39 PM
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Originally Posted by nilescozy View Post
ha well I'm 17. And I work but it would take me forever to make enough money. what's the best boost? which do you have?
what do u mean "whats the best boost" U mean turbo vs. s/c? Most would say turbo.

2004 e-shift IS300 239 rwhp 235rwtq Going fast without going FASTARRRR!
BC Stage 2 Cams/springs/retainers, CP Pistons 12.5:1, TT internals, ported/ polished head, , Area 51 Intake, EMU, custom 2.5in Magnaflow exhaust, HKS Cam Gear, Tokico Illuminas, Eibach Pro Kit, L-Tuned Sways, Rays Versus Campionato SS6, Altezza mesh grill, AAC CF,
my build
http://my.is/forums/f88/my-quest-bui...g-16-a-399650/
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post #60 of 141 (permalink) Old 09-11-2008, 03:48 PM
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does anyone know some approximate hp ratings for each scenario?
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  Lexus IS Forum > 1st-Gen IS300 > Go Fast Stuff

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