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GEN 2 (2017-2020) Ford F-150 Raptor Forums
Ford Raptor Engine Discussion and Performance Mods
840HP with CRP Stage 5 Turbos
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<blockquote data-quote="Badgertits" data-source="post: 1689449" data-attributes="member: 31322"><p>I've always been confused as to why alot of members here DON'T think a truck that is like literally designed & pre-destined to be the factory 1/2 ton w/ the MOST parasitic drivetrain loss outta the box (until TRX came out) & then remain hopeful it somehow won't be the case or overinflate their supposed "crank HP" when really all that matters is a) how much faster/more responsive is the truck before/after the mods/dyno, b) how much hp/tq was gained & WHERE it was gained throughout the curve, & c) how long & how well does the rest of the trucks drivetrain/suspension/running gear hold up after adding the extra mods/power.</p><p></p><p>A 4wd truck, w/ 4.10 gears, heavy duty axles, giant heavy 35" tire setup, and a busy-*** 10 speed tranny w/ a traditional torque converter is going to be @ the bottom of the totem pole when it comes to ICE vehicles & drivetrain loss. Period. 22-25% is probably the "norm"</p><p></p><p>For comparison sake, a vehicle w/ extremely low parasitic loss would be a 600cc sportbike 7-10%, for cars one of the most common performance vehicles w/ very low parasitic loss would be C5-C7 corvettes w/ manual trannies - these are in the 12-15% range. My C5Z stock (rated @ 405hp)made 358whp bone stock w/ 13k miles on it. Its making 718whp now as it sits on the same dyno - if someone actually cares enough to ask how much power it makes I just say "718 to the wheels" - I'm not going to bother guestimating drivetrain loss or inflating the BHP # to make myself or anyone else feel good lol - you start heavily modding vehicles - you go by whatever they make at the wheels. Should I say "my vette makes 815 hp"? </p><p></p><p>I guess the thought process is, the bigger the loss through the drivetrain the more some people would prefer to do backwards math to represent the modded vehicle's power as to what it makes @ the crank?</p></blockquote><p></p>
[QUOTE="Badgertits, post: 1689449, member: 31322"] I've always been confused as to why alot of members here DON'T think a truck that is like literally designed & pre-destined to be the factory 1/2 ton w/ the MOST parasitic drivetrain loss outta the box (until TRX came out) & then remain hopeful it somehow won't be the case or overinflate their supposed "crank HP" when really all that matters is a) how much faster/more responsive is the truck before/after the mods/dyno, b) how much hp/tq was gained & WHERE it was gained throughout the curve, & c) how long & how well does the rest of the trucks drivetrain/suspension/running gear hold up after adding the extra mods/power. A 4wd truck, w/ 4.10 gears, heavy duty axles, giant heavy 35" tire setup, and a busy-*** 10 speed tranny w/ a traditional torque converter is going to be @ the bottom of the totem pole when it comes to ICE vehicles & drivetrain loss. Period. 22-25% is probably the "norm" For comparison sake, a vehicle w/ extremely low parasitic loss would be a 600cc sportbike 7-10%, for cars one of the most common performance vehicles w/ very low parasitic loss would be C5-C7 corvettes w/ manual trannies - these are in the 12-15% range. My C5Z stock (rated @ 405hp)made 358whp bone stock w/ 13k miles on it. Its making 718whp now as it sits on the same dyno - if someone actually cares enough to ask how much power it makes I just say "718 to the wheels" - I'm not going to bother guestimating drivetrain loss or inflating the BHP # to make myself or anyone else feel good lol - you start heavily modding vehicles - you go by whatever they make at the wheels. Should I say "my vette makes 815 hp"? I guess the thought process is, the bigger the loss through the drivetrain the more some people would prefer to do backwards math to represent the modded vehicle's power as to what it makes @ the crank? [/QUOTE]
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GEN 2 (2017-2020) Ford F-150 Raptor Forums
Ford Raptor Engine Discussion and Performance Mods
840HP with CRP Stage 5 Turbos
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