I wouldn't take their advice for too much then. Torque and HP will always cross at 5250 RPM. HP is just a number derived from an equation based on TQ, which is why that's always the case.
Here is just a bit of thought on the fact that hp and torque cross at that RPM. First the fact that they cross at 5250 CANNOT be argued. It is part of the whole eqaution. It is just a fact. However I have seen people post graphs that differ from this when testing hp and torque at the wheels.
When testing these at the wheels things actually can vary especially with automatic cars with non lock up convertors. It will still cross close to the point and when you look at it and its not crossing at 5250 you know that there is something going on in the drivetrain or elsewhere(not in the engine that is impossible as it is an equation and always crosses at 5250). When you dyno your car at the wheels and it doesnt cross at 5250 just realize that somewhere either in the dyno, or driveline something is getting lost in the equation.
Sorry about the screw ups. I finally remembered how to insert a pic. Even though they dont cross in this picture in reality they actually cross at 5250. Its imposible mathmatically not to.
Sorry about the screw ups. I finally remembered how to insert a pic. Even though they dont cross in this picture in reality they actually cross at 5250. Its imposible mathmatically not to.
Hayabusa
Well I have seen a few sheets that don't cross exactly, but must either mean dyno is off a bit, cause it was close to 52xx
iv read it all and need help still im new what can i say... i got a stage 3 w/ toys , clutch master stage 4 6-puck , dss axles , short through shifter filled motor mounths aem cold air intake and BFMIC cold side hard pipe ... havent been to the dino or the track yet with the setings listed but i no ill need slicks and rims any help works ..
thanks for now .. James
__________________
2003 E-blue srt-4 Stg3r w/toys// clutch masters stg4//dss axles// xs BFMIC// hard pipes// 62mm Tb// mopar catback// mopar STS//
personal best ET- 12.3 @ 113.4
personal best MPH- 115
-1980 dodge pick-up 4x4 on 44" w/ 671 blowen 426ci
My sig is no longer accurate to my current power or mods. It was going to be dynoed on 7/27, but the dyno day was cancelled. I am estimating around 280whp. I currently run 13.20s at 107 with a 2.1 60' rolling out of the hole on crappy street tires with 35psi in them. I have a brand new OEM replacement clutch, urethane filled stock upper/lower and trans mounts, and stock axles. Hotchkis springs and sways on stock struts for suspension.
I am thinking a set of M&H 24.5/8.5/15s, but I don't know if they will clear the struts... I want to get a set of matching 15" centerline storms for slicks. I have 17s on the car for the street. What do you guys think?
Should I launch on or off boost, and at what RPM?
__________________
Flame Red 2004 Dodge Neon SRT-4 Stage 1 ECM & Springs SOLD
what are u guys doin 2nd gear burnouts launchin at for the burnout? ive always done first gear burnouts. .. stock turbo, and clutch. ive been lauchin at 4800 on the 2step for the launch. i used to cut 1.8 60fts before the 2step and wotbox. my car should go like 12.8@106ish and i keep runnin 13.2s or so at like 101. and lately ive been doin 1.9 60fts
AutoForums.com is the premier network of enthusiast-owned
enthusiast-operated automotive communities.
We operate more than 100 automotive forums where our users consult peers for shopping information and advice, and share
experiences and opinions as a community.