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C6 Corvette ZR1 & Z06General info about GM’s Corvette Supercar, LS9 Corvette Technical Info, Performance Upgrades, Suspension Setup for Street or Track
I thought the RPM package had cars making 620-630+ to the wheels with the Mamo MSD/NW102.
RPM's results, at least as posted here, always seem to be STD and they don't even show the temperature/humidity numbers. Let's just say I think their numbers seem suspicious.
RPM's results, at least as posted here, always seem to be STD and they don't even show the temperature/humidity numbers. Let's just say I think their numbers seem suspicious.
I am sure that the show STD numbers because they are running cars on their dyno in the most ideal weather possible, at least for showing good dyno numbers.
RPM's results, at least as posted here, always seem to be STD and they don't even show the temperature/humidity numbers. Let's just say I think their numbers seem suspicious.
I am sure they are, I am noticing a few of their setups popping up down south breaking 6 but not 630-640 like on their videos up in DE.
Originally Posted by lamboworld
I am sure that the show STD numbers because they are running cars on their dyno in the most ideal weather possible, at least for showing good dyno numbers.
True that and that is true as well. I am sure they are close to sea level and DA is not high at all their probably. Who knows lol.
Every dyno is different, but yes, STD will read higher than SAE. It is usually around 2-3% but it can be more or less than that. Even the same brand dynos with the same correction factors at two different shops will read differently. There was a HCI Z on the local dyno that had made 612 rwhp SAE on a dynojet before and only made 560ish on our dynojet before they tuned on it a little and made 575 or so. Guess what that 575 rwhp car did at the track? 9.97@139. Numbers don't matter.
Im using a Nitrous Outlet WinMax, its basically just a digital window switch that reads throttle position and has an output for the LNC-2000. Stephen actually recommended that I use that. I talked about a getting a progressor but no one thought it was necessary with a 100 shot. The only reason I brought it in so late was to help with traction in 1st gear, if you shift near redline it never drops below ~4800 rpms so the nitrous will be active from 4700 rpms in 1st gear through the rest of track.
I ran a nitrous outlet plate kit on my h/c c5 Z06, and fwiw, I had to jet for 150 to get 100whp with a wet shot. My 100hp jets only yielded about 60-65 depending on bottle pressure fwiw.
As far as your na package, I am calling RPM today to get more info on that, and possibly set up an appt. I have been emailing them back and forth the last few days.
Not to get too far off subject, but how is your drivability with your set up? My car is not a dd, but does it have decent street manners for traffic, and hot north east humid summers?
Definitely not a happy dyno. It was an odd one though, only made about 510 TQ. My tuner made 617 with a Mamo MSD, 2" ARH headers, LME heads. Same tuner and dyno, obviously.
B3 cam and LME heads made 630 SAE in Texas with a ported MSD and 1-7/8" Kooks headers.
Possibly a happy dyno compared to what the numbers I am seeing out of that combo now.
Originally Posted by lamboworld
I think that you guys have some power happy dynos in TX.
Here is my dyno with the B3. Mamo Ported MSD, NW 102, Kooks 1 7/8, 1050x injectors, etc....
Makes sense, the guy I know in GA made 607 rwhp SAE with your setup except 2” headers. I like how all these B3/RPM setups are actually making more believable numbers elsewhere.
Originally Posted by jayyyw
Definitely not a happy dyno. It was an odd one though, only made about 510 TQ. My tuner made 617 with a Mamo MSD, 2" ARH headers, LME heads. Same tuner and dyno, obviously.
It may just be how the dyno reads, especially since every dyno is different. I want to run an RPM/Mamo setup when my car is dialed in to see how things go.
A stand alone for 100 shot is overkill... ( respectfully), Never can be too safe though. Guessing you are planning on upping the shot. As a comparison in my built C5Z I ran a 250 shot w a standalone, progressive controller. Love me some Nitrous.... Looking at adding a little to my C6Z...
Someone say nitrous ?
Got my custom backing plate installed which will also allow me to removes the bottle brackets when I need the cargo space. I';; start running my lines and wiring later in the week but don't plan on completing the install and testing it until winter.
I hated giving up any space so I wanted to attach my bottle as far to the side of the cargo bay as I could. The middle of the cargo area is also not solid enough to hold a bottle and you have to reinforce it, which means added weight. There are very few options in the corvette so I decided to use this bracket and attach it directly to the frame. It is very solid and doesn't move and it takes up very little space.
RPM's results, at least as posted here, always seem to be STD and they don't even show the temperature/humidity numbers. Let's just say I think their numbers seem suspicious.
We ONLY use STD bc thats what every other big shop uses. We ALWAYS used SAE until we would ge phone call after phone call saying " how come XXX shop says hey make XXX power" So we switched. Also what do you mean we dont show temp numbers? I didnt know i was supposed to tell someone it was "83" degrees on this dyno graph.... Thats what the correction factors are there for.
We ONLY use STD bc thats what every other big shop uses. We ALWAYS used SAE until we would ge phone call after phone call saying " how come XXX shop says hey make XXX power" So we switched. Also what do you mean we dont show temp numbers? I didnt know i was supposed to tell someone it was "83" degrees on this dyno graph.... Thats what the correction factors are there for.
I am sure that you get complaints from customers about wanting to see the highest number. However, this causes confusion among everyone when RPM in DE is getting 30whp more than RPM in NC with the same setupp. It would be nice to see everyone use SAE corrected with smoothing 5 for consistency. The whole point using a Dynojet is that the dyno numbers are very consistent if they are used correctly. It is possible the humidity and temps on their dyno sheets and many shops do this. This will certainly tell a better story if STD numbers are used.
Like I said earlier on dyno numbers really don't mean anything to me as long as my car is performing as it should be. I have never seen any races won or 9 second 1/4 passes made on the dyno either but those are both things Im trying to do at the drag strip. The MPH I am seeing in the 1/8 mile with higher DA's seems pretty close to other 600whp cars (106.9 is the best so far with 2200ft DA). The 40+ WHP difference between 2 dynos was big enough that it concerned me that something was wrong with my car or that it may not be running at its full potential. I don't think I have cut any corners with the mods that I have done and just want to make sure I getting everything I can get out of what I have. I'm going on July 3rd to another dyno, same one that lamboworld has used, to see if it show a different number and have everything checked out just to make sure I'm not leaving any power on the table. The car runs great and drives nice with the tune that Fran did, I'm sure its spot on and we want have to change anything but everyone here including myself always wants a little more and if there is more in it I want to find it!
Like I said earlier on dyno numbers really don't mean anything to me as long as my car is performing as it should be. I have never seen any races won or 9 second 1/4 passes made on the dyno either but those are both things Im trying to do at the drag strip. The MPH I am seeing in the 1/8 mile with higher DA's seems pretty close to other 600whp cars (106.9 is the best so far with 2200ft DA). The 40+ WHP difference between 2 dynos was big enough that it concerned me that something was wrong with my car or that it may not be running at its full potential. I don't think I have cut any corners with the mods that I have done and just want to make sure I getting everything I can get out of what I have. I'm going on July 3rd to another dyno, same one that lamboworld has used, to see if it show a different number and have everything checked out just to make sure I'm not leaving any power on the table. The car runs great and drives nice with the tune that Fran did, I'm sure its spot on and we want have to change anything but everyone here including myself always wants a little more and if there is more in it I want to find it!
107 in the 1/8th is very good in this weather. If you have HP Tuners send me some data logs and ill let you know if everything is running up to par.
I took the car back to the dyno yesterday and I got similar results on motor, the guy took a look at he tune and he said he didn't think it had enough timing up top (above 6K) it was dropping to 19* I had him license the tune and he added a degree of timing up top and the car picked up 15 whp peak and 23 above 6K. It left a nice flat power curve up top and where it was falling off right around 6k. This also helped the NA numbers a little I picked up 7 Hp and 10tq moving the numbers to 576.5 HP and 507.1 tq. NA and also made my nitrous numbers pick up closer to what I had expected they would. The 100 shot numbers went to 655 and 599, we also tried 125 and 150. I made 689.3 hp and 631.5tq on the 125 shot and 716.1hp and 683.8tq on the 150 shot. I am going to put the 100 HP jets back in the car and keep playing at the track but I wanted to know that I could safely bump it up some and know how much timing to pull with the LNC2000 if I decided to run the 125 or 150 shot. I really just want to see 9's in the 1/4, pretty sure I can do it with the 100 shot. If it can't make it happen then I will go up! Thanks everyone for the opinions and input. It was 94* yesterday here and very poor air quality with that Im happy with the numbers and feel better knowing that the car is performing as it should
06-14-2018, 05:34 PM
