PCMFORLESS Posted January 13, 2004 Author Report Share Posted January 13, 2004 Got it figured out with the dynojet run viewer. I just had to force the scaling Dyno graph rescaled, Stock program vs Reprogrammed Dyno graph rescaled, stock program vs reprogrammed, then K&N tube added Then before anyone points to my preference for Standard correction over SAE (ask any old school machinist which correction is the right one ) I have posted the SAE corrected graphs here Dyno graphs in SAE Correction Yes, the levels aren't as high, but the gains are still the same Just saved myself some money on a scanner, by not having to scan these dyno graphs by making this work. If anyone does want the dyno runs that I saved from this, just drop me an email and I will email them to them and the link to the dynojet viewer if you want to play with them yourself. Thanks, Bryan Link to comment Share on other sites More sharing options...
PCMFORLESS Posted January 13, 2004 Author Report Share Posted January 13, 2004 Figured I better add this too, this is the graph showing the temps, barometer, and correction factor so it can't be said I changed that the parameters in the dyno or heated up the environmental station to bump my numbers. Graph with temps and correction factor Link to comment Share on other sites More sharing options...
converted Posted January 13, 2004 Report Share Posted January 13, 2004 Big tex, I wondered about tq vs hp as I have seen curves that do not cross on superchared/turbo vehicles. mis-calibrated dyno? I always thought the curves must cross as hp is high rpm torque. Link to comment Share on other sites More sharing options...
PCMFORLESS Posted January 13, 2004 Author Report Share Posted January 13, 2004 Most likely the graphs you saw were scaling issues as well. I can't recall ever seeing one that was scaled evenly that didn't cross at 5250. Later, Bryan Link to comment Share on other sites More sharing options...
cgar Posted January 15, 2004 Report Share Posted January 15, 2004 Wow! I installed the PCM I ordered from PCMforless yesterday and I can't even express how pleased I am. For a bolt on modification this kicks A**! I have tried just about every bolt-on in the book and nothing comes close to the power gained with this LS1 PCM. Now I know what TJMac was talking about after he had his PCM installed from these guys and said "Is this the same truck". Anyone who has not purchased a Chip/PCM for their truck yet because they are affraid they're not going to get what they expected, I am telling you that you will be shocked at how much this performance tune can do for your truck. If the weather is permitable this weekend I will try and get out to the track so I can post some times. I'll post the results here and on the track portion of this Forum. Calvin Link to comment Share on other sites More sharing options...
ChevyHighPerformance Posted January 15, 2004 Report Share Posted January 15, 2004 In next month's issue of Chevy High Performance we will cover a Radix install and show before and after dyno's and track times. We used a local automotive performance engineering group's dyno and ran it on the track. Because of the speed limiter in stock form we did before and after dyno's in second gear. Our dyno results would be what you would expect to see on a Mustang dyno. The dynojet will read higher. We saw 250 HP and 271 lb-ft in stock form and 340 HP and 345 lb-ft with the Radix installed. We will be doing a follow up article on this truck where we test four more more mods on this truck. We will be doing before and after dyno runs (might just be before all mods and after all mods depending on $$$) and before and after track runs after each mod. Link to comment Share on other sites More sharing options...
BenKey Posted January 15, 2004 Report Share Posted January 15, 2004 In next month's issue of Chevy High Performance we will cover a Radix install and show before and after dyno's and track times. We used a local automotive performance engineering group's dyno and ran it on the track. Because of the speed limiter in stock form we did before and after dyno's in second gear. Our dyno results would be what you would expect to see on a Mustang dyno. The dynojet will read higher. We saw 250 HP and 271 lb-ft in stock form and 340 HP and 345 lb-ft with the Radix installed. We will be doing a follow up article on this truck where we test four more more mods on this truck. We will be doing before and after dyno runs (might just be before all mods and after all mods depending on $$$) and before and after track runs after each mod. I assume you performed with the front driveshaft removed? Will the list of mods include LS1edit tuning? Or, do you know what the mods will be already? Link to comment Share on other sites More sharing options...
ChevyHighPerformance Posted January 15, 2004 Report Share Posted January 15, 2004 BenKey, The front drive shafts were in. We measured the rolling friction and aerodynamic drag and made 100% sure we were loading the vehicle exactly as it would be loaded on the road. Vehicle loading is import to obtain the actual driverain loss and correct engine load parameters. No LS1 edit for part 2. We have a potential list mods just not sure what order we want to install and test them. We may do a 5th mod or substitute for one of the four - not sure though. I will say the mods when we finalize our mod list. One mod will be a 3" radix pulley. If the members like part 1 and provide positive feedback to CHP (hint!), then I will most likely get approval to do a part 3. (Part 2 is already approved.) I want to do a part 3 and would like to test LS1 edit along with a couple other mods. I'm hoping to draw upon the LS1 edit experience here to give us a running start. Link to comment Share on other sites More sharing options...
BenKey Posted January 16, 2004 Report Share Posted January 16, 2004 You might have to explain para 1 to me a little more. When is the issue sched to come out? Link to comment Share on other sites More sharing options...
MN C5 Posted January 16, 2004 Report Share Posted January 16, 2004 You might have to explain para 1 to me a little more. When is the issue sched to come out? Me too I'm all ear's. Sounds fun thanks for the scoop Link to comment Share on other sites More sharing options...
BigTex Posted January 16, 2004 Report Share Posted January 16, 2004 Is the truck getting a set of longtube headers as part of part 2? positive feedback, positive feedback, positive feedback, positive feedback, positive feedback, positive feedback, positive feedback, positive feedback! Link to comment Share on other sites More sharing options...
SSminneapolis Posted January 16, 2004 Report Share Posted January 16, 2004 Link to comment Share on other sites More sharing options...
m396 #00-011 Posted January 16, 2004 Report Share Posted January 16, 2004 250rwhp/345hp = 27.5% drivetrain loss - believable given it was a Mustang dyno 271rwtq/380tq = 28.7% drivetrain loss - again, for a Mustang dyno From these two #'s, we can assume (yeah, I know) a drivetrain loss of 28% on a Mustang dyno 340rwhp/(1-28%) = 472hp w/ Radix installed 345rwtq/(1-28%) = 479tq w/ Radix installed Motor hp gain = 127hp Motor tq gain = 94 tq Not to shabby gains for the Radix Link to comment Share on other sites More sharing options...
GEAR M UP Posted January 16, 2004 Report Share Posted January 16, 2004 That's some impressive numbers..... The place I'm going to have my truck dyno'd has a Mustang dyno, and the people from Mustang will be there when they dyno my truck in Feb. Link to comment Share on other sites More sharing options...
BenKey Posted January 16, 2004 Report Share Posted January 16, 2004 Jeff, I thought there was a place that has the dyna-pak dyno there in your area? Why wouldn't you use them? Link to comment Share on other sites More sharing options...
Recommended Posts
Archived
This topic is now archived and is closed to further replies.