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The difference between 450whp and 520whp???

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Old 10-04-2010, 12:50 PM
  #21  
djtimodj
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The tires and camber are well set guys. I've got some sticky R888's and the rear camber is only -1.2.

I'm gonna get used to the 450 whp and then see if I
"need" more power early next year.

Any one have any idea on what the extra 70whp would gain me in the 1/4 ?? Forget about grip ect just in terms of trap speed?

Any one have any vids
Old 10-04-2010, 01:08 PM
  #22  
james12345pt
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Originally Posted by Alberto
Why cant you hook up 465hp on anything other than DR's?

If I can't floor it and powershift between the earlier gears then I am not utilizing the power than I already have so what is an extra 70 hp going to do for me? I don't do 60-160 mph pulls on the street therefore extra power in higher gears does nothing for me. I was pointing out to the OP that if he was looking for extra power in a dd then he would need it unless he is willing to deal with specialized tires on the road which will take away from the overall driveability of the vehicle.
Old 10-04-2010, 01:36 PM
  #23  
str8dum1
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the calcs say ~8 mph. 117 to 125 in a 3400 lb car
http://www.ajdesigner.com/phphorsepo...horsepower.php

its pretty close cuz i trapped 117 at 460whp @3700 lb G35

Originally Posted by djtimodj
Any one have any idea on what the extra 70whp would gain me in the 1/4 ?? Forget about grip ect just in terms of trap speed?

Last edited by str8dum1; 10-04-2010 at 01:41 PM.
Old 10-04-2010, 02:06 PM
  #24  
Blackbird CPV35
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from 550 to 628 I gained 10 mph. 125 trap to 135
Old 10-04-2010, 02:08 PM
  #25  
John@z1
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We have a car here now that was making 525rwhp with the APS Premium BB kit(using the APS supplied actuators). Just installed a PMAS on it, JWT cams and springs, removed the Haltech and retuned with Osiris and made a peak 590rwhp and 616tq. This rendered second gear useless. The power was made at 15psi, have the tech look over the boost controller(those actuators should boost more).

The owner loves a gross display of HP so this fits his needs.
Old 10-04-2010, 02:30 PM
  #26  
djtimodj
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John the car is tuned with Osiris and is using a gizzmo boost controller. He most my tuner can get is 12psi or so. You made 590whp at only 15psi! That's a huge power fugue for not much boost!
Old 10-04-2010, 03:04 PM
  #27  
Glex25
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I made 457whp 427TQ on stock block @ 8psi and now with built motor and forge actuators I'm making 518WHP but I'm also putting down 550TQ @ 13psi it made a world of difference and that is just break in tune with no meth. I can't wait until I break in the motor and turn up the boost and turn on the meth.

Alberto funny that we talking about alignment to put down the power.
In a few days I'm taking the car to get aligned and was thinking of running -1.0 camber on rear oppose to what I usually run which is closer to -2.0.

What specs is your alignment? or what would you recommend as a balance for putting down power on the street and still be able to handle turns with confidence?
Old 10-04-2010, 03:59 PM
  #28  
ReV2Red
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On a side note, OP, who's doing your tune?
Old 10-04-2010, 04:47 PM
  #29  
Alberto
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Originally Posted by Blackbird CPV35
from 550 to 628 I gained 10 mph. 125 trap to 135
Same redline and power curve? That doesnt seem normal, but I believe you.

OP asking us what you would gain in trap or drop in ET is worthless. For "comparison" or estimating tell us what you run now and with what power and weight....

Glex I run -1.1 rear, -1.5 front it handles well, but not as good as all four at -2. Still very capable though, I forget the rear toe.
Old 10-04-2010, 04:59 PM
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Blackbird CPV35
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Originally Posted by Alberto
Same redline and power curve? That doesnt seem normal, but I believe you.

OP asking us what you would gain in trap or drop in ET is worthless. For "comparison" or estimating tell us what you run now and with what power and weight....

Glex I run -1.1 rear, -1.5 front it handles well, but not as good as all four at -2. Still very capable though, I forget the rear toe.

Power was better up top but lost mid range which doesnt matter much for drag. Same motor setup just went from the aps extreme to the GTM stg 5. Redline was the same

this was also on a DD too
Old 10-04-2010, 07:40 PM
  #31  
08NismoZ
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Hmmmm I trapped 125mph with 454rwhp on a DD, and yeah that extra 10mph between Blackbird's car and mine is a huge difference since i've done a couple of roll on races (ZdayZ airstrip) against him : )
Old 10-04-2010, 08:52 PM
  #32  
Nealoc187
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125mph traps are pretty poor for a 550whp z. such a car should be trapping 130mph on a clean run.

450whp z (assuming turbo and not some ******** centrifugal SC powerband here) should be trapping around 123-124 maybe 125. 520whp will have you trapping more like 128-129 assuming most other things stay equal such as your redline, powerband same just raised up, etc.

edit: the assessment above assumes you can drive.

Last edited by Nealoc187; 10-04-2010 at 09:04 PM.
Old 10-05-2010, 02:31 AM
  #33  
wizard
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Originally Posted by Nexx
look at it this, NA bust a nut for more 15whp, your talking almost 5x that just by changing out the actuators and a tune.
Old 10-05-2010, 03:23 AM
  #34  
djtimodj
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LOL... well so far the point of this thread people think the extra 70whp is worth the cost/effort?

Guys me being from the UK drag racing and 1/4,trap speed etc really dont mean that much to me! lol. The stock nissan GT-R can run 11's and trap about 118-120mph in the 1/4. How would my car with only 450whp (about 480-490 flywheel bhp) and a 200kg lighter than the GT-R do in a roll race from say 40mph-140mph??

I know this is "internet racing" and all that **** but I have not got my car back yet and Im just exited to see what sort of performance the car will have at this lower than expected power level.
Old 10-05-2010, 05:04 AM
  #35  
Alberto
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Originally Posted by djtimodj
LOL... well so far the point of this thread people think the extra 70whp is worth the cost/effort?

Guys me being from the UK drag racing and 1/4,trap speed etc really dont mean that much to me! lol. The stock nissan GT-R can run 11's and trap about 118-120mph in the 1/4. How would my car with only 450whp (about 480-490 flywheel bhp) and a 200kg lighter than the GT-R do in a roll race from say 40mph-140mph??

Again without you giving us a baseline we cant even begin to know if you can drive or not. Everyone thnks they can drive, even from a roll people feel the driver equation isnt huge, but I promise you it is, especially against a car that shifts like the GTR. Without any times from you, and with the bench racing mentality you have, Id put money on the GTR.
Old 10-05-2010, 05:29 AM
  #36  
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Originally Posted by djtimodj
John the car is tuned with Osiris and is using a gizzmo boost controller. He most my tuner can get is 12psi or so. You made 590whp at only 15psi! That's a huge power fugue for not much boost!

I have a lot of heart in this tune. I must say the peak boost was 18psi but the power was made where boost fell to 15psi.

Are you running a PMAS? And I'm using a Blitz I color BC.
Old 10-05-2010, 05:57 AM
  #37  
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traction. there will be no difference. if you do not have the proper traction a 400hp Z will beat you.
Old 10-05-2010, 05:59 AM
  #38  
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Originally Posted by MUZZY
traction. there will be no difference. if you do not have the proper traction a 400hp Z will beat you.
That's VERY unlikely imo!
Old 10-05-2010, 06:04 AM
  #39  
midz350
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Originally Posted by MUZZY
traction. there will be no difference. if you do not have the proper traction a Prius will beat you.
fixed
Old 10-05-2010, 06:07 AM
  #40  
wizard
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Mate,

If I were you, I'd try and aim for the 500whp target that you originally had. I'm not sure how much more money this will mean for you, but if it's not too much then definately do it... because I don't feel with all the money you've spent on that engine that it will be "worth it" otherwise.. Hell you'll have trouble shaking me off with only 450whp.. and I still have a stock block! Forged MUST be quicker then stock!

Originally Posted by djtimodj
LOL... well so far the point of this thread people think the extra 70whp is worth the cost/effort?

Guys me being from the UK drag racing and 1/4,trap speed etc really dont mean that much to me! lol. The stock nissan GT-R can run 11's and trap about 118-120mph in the 1/4. How would my car with only 450whp (about 480-490 flywheel bhp) and a 200kg lighter than the GT-R do in a roll race from say 40mph-140mph??

I know this is "internet racing" and all that **** but I have not got my car back yet and Im just exited to see what sort of performance the car will have at this lower than expected power level.

Last edited by wizard; 10-05-2010 at 06:09 AM.


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