Guest Simon Posted December 6, 2003 Share Posted December 6, 2003 Just dyno tuned my car... It is running very well and oh so smooth!! The VG30DET and Wolf3D computer are a good combo!! 224.4HP at the wheels and 850lbs of TQ at 6.0 PSI Quote Link to comment Share on other sites More sharing options...
Guest 240Zduz10s Posted December 6, 2003 Share Posted December 6, 2003 850 pounds of torque.. ?? Quote Link to comment Share on other sites More sharing options...
Guest Simon Posted December 6, 2003 Share Posted December 6, 2003 yeah doesnt seem right to me...... but thats what the dyno said.... i will be looking into it Quote Link to comment Share on other sites More sharing options...
Guest Simon Posted December 6, 2003 Share Posted December 6, 2003 TQ peaks at 2800 RPM at 850 Lb then drops to about 810 Lb at 5200 RPM then drops quite abit after that is Lb = same as lbs ? thats what i assumed being ft/Lb the graph reads 850Lb Quote Link to comment Share on other sites More sharing options...
Zsane Posted December 6, 2003 Share Posted December 6, 2003 torque x rpms divided by 5252 gives you hp right? so 100 ft.lbs at 5000 rpm = 95hp sound right! 850 at 2800rpm = 453hp 810 at 5200rpm = 802hp don't want to be negative, but. lets go the other way. hp x 5252 divided by rpm = torque so 224hp x 5252 = 1176448 divided by 5200 rpm = 226 ft.lbs hp sound right, torque has to be wrong. Quote Link to comment Share on other sites More sharing options...
Guest Nic-Rebel450CA Posted December 6, 2003 Share Posted December 6, 2003 Zsane's math looks right to me. (Unless you have an 80% drivetrain loss ) Maybe that dyno graph is just an example of bad graphing. I have seen dyno sheets where they put both graphs on the same sheet and the numbers get confused because one graph is bumped up on the page and then you end up reading outrageous numbers that are for if the bottom graph came up that high on the page. Quote Link to comment Share on other sites More sharing options...
Guest Simon Posted December 6, 2003 Share Posted December 6, 2003 Zsane i think you re on it there the car does have 850 pounds of TQ but the distance is what i dont know about ... there not foot pounds ft/lbs its some other distance x/lbs i will find out on monday thanks for your help Quote Link to comment Share on other sites More sharing options...
yo2001 Posted December 6, 2003 Share Posted December 6, 2003 sounds like you got huge boost spike. Quote Link to comment Share on other sites More sharing options...
David K Posted December 6, 2003 Share Posted December 6, 2003 Right on Simon! I remember when you first got your engine and how we all talked about the vg30det. Good work bud! Quote Link to comment Share on other sites More sharing options...
Guest Simon Posted December 6, 2003 Share Posted December 6, 2003 yo2001 it only spikes to about 10 PSI then quickly down to 6 PSI... I wouldnt have though it was that big... Ive seen people with spikes of 8-10 PSI mine in only 4 PSI here is the Dyno Graph, just a picture i took with my phone... i will scan it when i get the chance... pretty flat tq curve Quote Link to comment Share on other sites More sharing options...
yo2001 Posted December 7, 2003 Share Posted December 7, 2003 Actually 4 psi spike is a big deal. With 2 psi spike, my car jumped from 13:1 A/F ratio from 12:1-11.8:1. 800ft/lb isn't right but the torque is nice and flat though. I bet the truw numbber is about 230-240ft/lb. Good number BTW Quote Link to comment Share on other sites More sharing options...
Guest Simon Posted December 7, 2003 Share Posted December 7, 2003 yo2001 I use a MAP sensor and aftermarket computer... not the MAF... so if the pressure is to spike the computer will still dump in the correct amount of fuel into the engine... so for me spikes just mean MORE POWER Quote Link to comment Share on other sites More sharing options...
yo2001 Posted December 7, 2003 Share Posted December 7, 2003 Your MAP might be faster than my MAF but it you are moving enough air, your ECU isn't going to keep up with that. I say tighten the WG actualtor to solve the problem and run more boost. Quote Link to comment Share on other sites More sharing options...
stony Posted December 7, 2003 Share Posted December 7, 2003 My dyno read almost 600LB or torque with 392 rwhp.....i contributed that to the fact that my timing signal was intermittent. The timing is somehow calculated in there for torque Quote Link to comment Share on other sites More sharing options...
Guest Simon Posted December 7, 2003 Share Posted December 7, 2003 I will be running more boost after i get an intercooler in there.... the VG30DET is unintercooled standard... but that will be comming!! I want to run about 12 PSI, also i think the standard turbo will only hold up to that... Cash is short... just had to buy a beefier clutch and pressure plate Aslo my diff isnt in the best shape.... few sounds that are not quite right Quote Link to comment Share on other sites More sharing options...
Guest Simon Posted December 7, 2003 Share Posted December 7, 2003 Stony: the timing is just so they can get the RPM of the engine if they use the RPM of the wheels depending on what gear you are in you will get HUGE torque figures like mine... Quote Link to comment Share on other sites More sharing options...
Guest Simon Posted December 7, 2003 Share Posted December 7, 2003 DAMMMMM... birds have craped all over my car..... Quote Link to comment Share on other sites More sharing options...
stony Posted December 7, 2003 Share Posted December 7, 2003 it all ties together.... there is no way a 225 hp in a vg is producing 800+lb or torque....sorry something is wrong Quote Link to comment Share on other sites More sharing options...
Jay1970Z Posted December 7, 2003 Share Posted December 7, 2003 I'd have to agree with Stony. If you want to know for sure, just get it dynoed again next time you have the chance, and try to get it from a different place on a different type of dyno maybe. Quote Link to comment Share on other sites More sharing options...
Guest Nic-Rebel450CA Posted December 7, 2003 Share Posted December 7, 2003 here is the Dyno Graph' date=' just a picture i took with my phone... [/quote'] Umm.. if that is even the torque curve, just because you read it against the numbers on the right does not make that the value.. There is no where on that graph that the torque value is written. There is no scale on the graph to go along with the torque line. You do not have 850 ft/lbs of torque. If you did, you would have 453HP (which you do not). Quote Link to comment Share on other sites More sharing options...
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