Modded 2009 ZR1 Video: 581 rwhp & 599 rw tq
#16
01-09-2009, 03:58 AM
I was really just thinking it was funny someone actually makes a "700 kit" for a car that puts out 638hp in stock form.
#17
01-09-2009, 04:12 AM
For this thread... I believe they stated a pulley swap adding a little over a bar of boost, headers, high flow cats and tune is delivering 51 rwhp, 581 - 51 puts the car back in the 530 range and that is more like 16% to 17%.
Either way, doesn't really matter... someone willing to take the boost to 18 or 19 on 93 octane is going to be walking around with a tighter *** than most.
Last edited by Almo; 01-09-2009 at 04:21 AM.
#18
01-09-2009, 06:47 AM
I still think 15% is right on the money in my opinion. Viarable 2% might be the cars are running a bit rich. I have yet to see stock numbers over 550. (520 to 540s). Getting ready to check all your threads out though. From what I have read... tinkered with it isn't showing SAE engine dyno through the wheels on a Dyno Jet. They're hitting the street a bit rich so tinkering could be, adding a couple degrees and leaning it out and getting a quick 40 to the wheels. Perfect example based off what your saying is this thread... 581, MODDED puts the cars at your stated DT loss.
From what I have read... tinkered with it isn't showing SAE engine dyno through the wheels on a Dyno Jet. They're hitting the street a bit rich so tinkering could be, adding a couple degrees and leaning it out and getting a quick 40 to the wheels. Perfect example based off what your saying is this thread... 581, MODDED puts the cars at your stated DT loss.
#19
01-09-2009, 08:21 AM
Like I said, take the post in this thread for example. Base numbers show 530... you can do the drive train loss math to 638.
Not to mention... we are still talking about an independent rear here... unless the tranny/diff gears are cryo'ed then not a chance drive train loss is around 10%.
Not to mention... we are still talking about an independent rear here... unless the tranny/diff gears are cryo'ed then not a chance drive train loss is around 10%.
Last edited by Almo; 01-09-2009 at 08:29 AM.
#21
01-09-2009, 04:35 PM
I believe after some are broken in at 18 pounds of boost, the ZR will put down very close to 700 to the wheels no problem.
#22
01-09-2009, 09:05 PM
I still think 15% is right on the money in my opinion. Viarable 2% might be the cars are running a bit rich. I have yet to see stock numbers over 550. (520 to 540s). Getting ready to check all your threads out though. From what I have read... tinkered with it isn't showing SAE engine dyno through the wheels on a Dyno Jet. They're hitting the street a bit rich so tinkering could be, adding a couple degrees and leaning it out and getting a quick 40 to the wheels. Perfect example based off what your saying is this thread... 581, MODDED puts the cars at your stated DT loss.
From what I have read... tinkered with it isn't showing SAE engine dyno through the wheels on a Dyno Jet. They're hitting the street a bit rich so tinkering could be, adding a couple degrees and leaning it out and getting a quick 40 to the wheels. Perfect example based off what your saying is this thread... 581, MODDED puts the cars at your stated DT loss.
#23
01-10-2009, 01:22 AM
I don't know what the price of this "700" kit is, but based on those parts/labor, I am certain it's a pretty bad horsepower per dollar offer.
#24
01-10-2009, 01:29 AM
LOL, I have always wanted to mod a dump truck. It it quite simple, stock ZR are putting down 530 to 540s. Please enlighten us with what you feel is their drive train loss? This thread shows a modded ZR with baseline numbers and both off baseline are equating to 16% to 17% drive train loss.
I would be the first to tell someone to screw a BHP number and even a peak HP number from the dyno because that and $1 will get you a paper cut and maybe a coffee these days. Numbers under the curve is where it matters. :P
Back to your comment, show me how they aren't on par off of baseline numbers stating 581 is 700 at the crank?
Last edited by Almo; 01-10-2009 at 01:36 AM.
#25
01-10-2009, 01:33 AM
I agree 100% with you! The numbers from ZRs aren't doing it for me at all. For example, those mods on a little 281 CI engine under FI would yield 80 to 100 rwhp. Yes a 4V 281 but still, scratching my head still.
Oh and I would call it Euro pricing and statment of gains crossing over into the Domestic side of the house.
Last edited by Almo; 01-10-2009 at 01:43 AM.
#26
01-10-2009, 01:43 AM
LOL, I have always wanted to mod a dump truck. It it quite simple, stock ZR are putting down 530 to 540s. Please enlighten us with what you feel is their drive train loss? This thread shows a modded ZR with baseline numbers and both off baseline are equating to 16% to 17% drive train loss.
I would be the first to tell someone to screw a BHP number and even a peak HP number from the dyno because that and $1 will get you a paper cut and maybe a coffee these days. Numbers under the curve is where it matters. :P
Back to your comment, show me how they aren't on par off of baseline numbers stating 581 is 700 at the crank?
I would be the first to tell someone to screw a BHP number and even a peak HP number from the dyno because that and $1 will get you a paper cut and maybe a coffee these days. Numbers under the curve is where it matters. :P
Back to your comment, show me how they aren't on par off of baseline numbers stating 581 is 700 at the crank?
#27
01-10-2009, 01:54 AM
LOL then I bet they will tell you they are scratching their heads too trying to figure out why numbers seem to be low. They are showing a bit more drive train loss. Hence why I think 15% is more like the norm on the ZR so it seems.
So all manuals put down 12% to 13% huh? LOL. I believe you might want to ask them again to clarify so you aren't making them look bad on the web. LOL.
Wow, who else do you know?
Last edited by Almo; 01-10-2009 at 01:59 AM.
#28
01-10-2009, 02:23 AM
ORYX,
Still waiting on you to answer post 24?
I believe even Mr. H would tell you your previous post came off ignorant as the numbers don't lie. :/
Still waiting on you to answer post 24?
I believe even Mr. H would tell you your previous post came off ignorant as the numbers don't lie. :/
Last edited by Almo; 01-10-2009 at 02:25 AM.
#29
01-10-2009, 01:55 PM
Hmmm. Let's try this again and real slow like, so you can understand. The car d-y-n-o-e-d 581 rwhp. I stated that most of the tuners I know consider 12-13% dt loss to be the norm, which would put the figure @ approximately 665-670 flywheel hp. Manufacturers and tuners sometimes embelish their figures because it sounds good for marketing purposes. For instance, Mercedes makes a new 6.2 liter motor but calls it a 6.3 to keep in line with tradition. I know Hennessey is fully capable of making this car hit 700 hp or more. You are the one throwing around 16-17% in your earlier post.
#30
01-10-2009, 03:32 PM
Hmmm. Let's try this again and real slow like, so you can understand. The car d-y-n-o-e-d 581 rwhp. I stated that most of the tuners I know consider 12-13% dt loss to be the norm, which would put the figure @ approximately 665-670 flywheel hp. Manufacturers and tuners sometimes embelish their figures because it sounds good for marketing purposes. For instance, Mercedes makes a new 6.2 liter motor but calls it a 6.3 to keep in line with tradition. I know Hennessey is fully capable of making this car hit 700 hp or more. You are the one throwing around 16-17% in your earlier post.
LOL, go back and read I stated for this car I believe 15% looks to be on for the DT loss. You still didn't answer my question. What is the DT loss for the 530 basline pull this
ZR put down?
Last edited by Almo; 01-10-2009 at 04:31 PM.