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Old 12-09-2012, 12:01 PM   #1
MGMGXP
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Default How many GXPs over 600 rwhp?

What are the details of your build?
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Old 12-09-2012, 05:20 PM   #2
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Mine was making 705whp 692tq on a custom TT setup. I am now back to bone stock.
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Old 12-09-2012, 06:38 PM   #3
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I saw your thread where you were parting out. Pardon my ignorance, but why go through the time and expense of building a custom TT only to go through the time and aggravation of going back to stock? Selling the car I presume?
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Old 12-09-2012, 07:30 PM   #4
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I'd guess at this point there aren't any GXPs over 600. I could be wrong, don't keep good track of the other board.
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Old 12-09-2012, 08:01 PM   #5
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IMO there might be a couple reasons, GXP guys might want to maintain the car's value and after spending a little more than the GT limit their mods. GT owners on the other hand... Have a little more fun!
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Old 12-09-2012, 08:07 PM   #6
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I am close at 549 at the rear wheels. Track at Watkins Glen so I need this kind of HP to keep up with the lighter cars.
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Old 12-09-2012, 09:30 PM   #7
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Quote:
Originally Posted by adamsar View Post
IMO there might be a couple reasons, GXP guys might want to maintain the car's value and after spending a little more than the GT limit their mods. GT owners on the other hand... Have a little more fun!
That is an interesting perspective. Makes a lot of sense. The GTers out there do seem to go buck wild with the mods. Myself included of course
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Old 12-09-2012, 10:02 PM   #8
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I don't have an official dyno... but judging by what Louie made, and what psi I'm running, and taking into account I have an aftermarket cam, vs. Louie on a stock cam, I bet I'm easily 650+ rwhp.

Mods in sig.
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Old 12-09-2012, 11:02 PM   #9
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I will be joining the 600+ club after my TT build. Should be done by mid January.
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Old 12-10-2012, 06:56 AM   #10
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Quote:
Originally Posted by NYGXP47 View Post
I am close at 549 at the rear wheels. Track at Watkins Glen so I need this kind of HP to keep up with the lighter cars.
Details of your build?
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Old 12-10-2012, 07:13 AM   #11
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I'm close.
586 on 6psi
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Old 12-10-2012, 08:47 AM   #12
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Quote:
Originally Posted by 04GT View Post
I don't have an official dyno... but judging by what Louie made, and what psi I'm running, and taking into account I have an aftermarket cam, vs. Louie on a stock cam, I bet I'm easily 650+ rwhp.

Mods in sig.
I'm confused - how could you be pushing that much power and have all those mods and not have been dyno-tuned? Wouldn't those mods require you to run a custom dyno map???
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Old 12-10-2012, 09:51 AM   #13
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I was wondering that too. Heck I got dyno'ed with intake and exhaust.
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Old 12-10-2012, 09:56 AM   #14
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Quote:
Originally Posted by bostonf4$ View Post
I'm confused - how could you be pushing that much power and have all those mods and not have been dyno-tuned? Wouldn't those mods require you to run a custom dyno map???
You do not need a dyno to tune. Many racers tune at the track.
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Old 12-10-2012, 01:09 PM   #15
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Quote:
Originally Posted by bostonf4$ View Post
I'm confused - how could you be pushing that much power and have all those mods and not have been dyno-tuned? Wouldn't those mods require you to run a custom dyno map???
Seriously?

I don't get "dyno tunes."

My car gets tuned on the street....
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Old 12-10-2012, 01:13 PM   #16
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Quote:
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Seriously?

I don't get "dyno tunes."

My car gets tuned on the street....
Correct i do 99% of tuning on the street i put cars on dynos to see what kinda power they make and where they are at. Most all the time from a "street" tune to a "dyno" tune i see little to no gain, if there is a gain it's in the 5-8hp range.

My personal G8 was always street tuned.
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Old 12-10-2012, 02:42 PM   #17
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Quote:
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Seriously?

I don't get "dyno tunes."

My car gets tuned on the street....
You do it yourself? I guess mine had both, whenever I went to the tuner he would do the initial tune on the dyno then tighten it up after the fact on the street driving around, so I guess I see what you mean...if it was me I'd just ask to throw it on the dyno for the heck of it to see where it was at.
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Old 12-10-2012, 02:51 PM   #18
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Alright then..... what is the benefit of a street tune vs. a dyno tune outside of the hp? Better yet, are there any specific pros and cons?
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2009 G8 GXP, SRM, M6, Onyx, Roof. (#1818 of 1829) a.k.a Gianna
Show: Tint, VG Sharkfin, 3M clear bra, 6000k HIDs, 20" TSW Interlagos.
Go: BMR, GForce, MGW, Monster Clutch, 3" SOLO, Dynotech, Squash DW255s, Tein, NLP Twin Turbo!
Stock: 363 whp/367 tq SAE (Dyno Jet) 13.149 @ 108.21 mph
Mods (old): 399 /399 SAE (Dyno Jet) 12.711 @ 108.66 1.548 60' w/MT ET Streets
Mods (new): 602/614 SAE 10 psi, 6* (Dyno Jet) 11.33 @ 125.26
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Old 12-10-2012, 03:09 PM   #19
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Alright then..... what is the benefit of a street tune vs. a dyno tune outside of the hp? Better yet, are there any specific pros and cons?
I always believe in a street tune since you do 99% of your driving there correct? Some dynos are loaded some are not so i see the street and track being the best places to "dial in" a car. Plus with street tunes you can dial in all the shifts on auto cars and driveablity on stick/auto cars also.
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Alky control meth kit,ZL1 pump,KB BAP, Pacesetter LT's, Full 3" exhaust w/magnaflow race mufflers,Yank3200
Spohn Trailing arms,UMI Adjustable toe links
10.55@134.3 1.60 - SOLD!
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Old 12-10-2012, 03:23 PM   #20
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^^Thanks Shane.
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2009 G8 GXP, SRM, M6, Onyx, Roof. (#1818 of 1829) a.k.a Gianna
Show: Tint, VG Sharkfin, 3M clear bra, 6000k HIDs, 20" TSW Interlagos.
Go: BMR, GForce, MGW, Monster Clutch, 3" SOLO, Dynotech, Squash DW255s, Tein, NLP Twin Turbo!
Stock: 363 whp/367 tq SAE (Dyno Jet) 13.149 @ 108.21 mph
Mods (old): 399 /399 SAE (Dyno Jet) 12.711 @ 108.66 1.548 60' w/MT ET Streets
Mods (new): 602/614 SAE 10 psi, 6* (Dyno Jet) 11.33 @ 125.26
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