Test drove a 6.2 platty..
02-10-2013, 02:07 AM
#61
Senior Member
Thread Starter
Originally Posted by jmoore9
Do tell! By tuning the 6.2 how much extra HP/TQ can you get? I'm hearing not much but shifting is a lot better.
02-10-2013, 02:19 AM
#62
Senior Member
I thot the engines got much better fuel economy... My 1991 f150 302 gets like 10-12 city (sometimes lil lower when im in badass mode) but ive gotten around 18.5 highway roughly by my calculations. With 278k on the motor
02-10-2013, 11:30 AM
#63
Glad to see someone, such as yourself, actually keep their truck more than a few years and put some decent miles on it.
02-10-2013, 11:43 AM
#64
Senior Member
The 6.2 is very nice but I've no regrets with the EB.
02-10-2013, 12:00 PM
#65
Here are some excerts from 5stars website concerning timing, etc.
TIMING-Can be increased in most RPM areas for improved Torque and HP. Running a higher Octane fuel will net more power and economy from some timing/spark advancement. However, with a Raptor 6.2L V8 even running 87 Octane fuel can yield some respectable gains in power and torque over stock.
The 6.2L suffers from poor throttle response down low. In fact the factory programming has limits on the max throttle blade opening that PCM allows and is based on RPM range engine is operating in. Full throttle blade opening in factory programming is only allowed at 4500 RPMs. By correcting this issue and a few others; improvements will be much better throttle response, step on go pedal, vehicle will respond quicker...this DBW system is a torque driven system, it works by taking a certain amount of torque via engine and wheel and applies it to what the driver foot say it needs; a better way to explain it is its a torque limiter. It only allows so much torque at a given pedal position. Stock tables are conservative and numb at best and that's why one would feel some times a lag or a goofy pedal with DBW systems. For a 6.2L V8 this is one of the most critical areas that must be addressed and modified to generate more torque /hp and throttle response. By reworking the OEM strategies makes your 6.2L V8 come to life!
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jmoore9 (02-10-2013)
02-10-2013, 02:04 PM
#66
Ford Blue Oval Guy
Overall HP gains are in the 20/25 hp range, but the major difference is the lower and mid range torque and power. From the factory you dont get full throttle until about 4K rpms due to the factory programming limiters and timers. Also the factory timing is very conservative , so this is an area where a tune really helps. Unlike the EB you dont have boost psi to increase to get the bigger overall gains, but the drivability and increase in lower rpm power are very noticable comared to stock.
Here are some excerts from 5stars website concerning timing, etc.
TIMING-Can be increased in most RPM areas for improved Torque and HP. Running a higher Octane fuel will net more power and economy from some timing/spark advancement. However, with a Raptor 6.2L V8 even running 87 Octane fuel can yield some respectable gains in power and torque over stock.
The 6.2L suffers from poor throttle response down low. In fact the factory programming has limits on the max throttle blade opening that PCM allows and is based on RPM range engine is operating in. Full throttle blade opening in factory programming is only allowed at 4500 RPMs. By correcting this issue and a few others; improvements will be much better throttle response, step on go pedal, vehicle will respond quicker...this DBW system is a torque driven system, it works by taking a certain amount of torque via engine and wheel and applies it to what the driver foot say it needs; a better way to explain it is its a torque limiter. It only allows so much torque at a given pedal position. Stock tables are conservative and numb at best and that's why one would feel some times a lag or a goofy pedal with DBW systems. For a 6.2L V8 this is one of the most critical areas that must be addressed and modified to generate more torque /hp and throttle response. By reworking the OEM strategies makes your 6.2L V8 come to life!
Here are some excerts from 5stars website concerning timing, etc.
TIMING-Can be increased in most RPM areas for improved Torque and HP. Running a higher Octane fuel will net more power and economy from some timing/spark advancement. However, with a Raptor 6.2L V8 even running 87 Octane fuel can yield some respectable gains in power and torque over stock.
The 6.2L suffers from poor throttle response down low. In fact the factory programming has limits on the max throttle blade opening that PCM allows and is based on RPM range engine is operating in. Full throttle blade opening in factory programming is only allowed at 4500 RPMs. By correcting this issue and a few others; improvements will be much better throttle response, step on go pedal, vehicle will respond quicker...this DBW system is a torque driven system, it works by taking a certain amount of torque via engine and wheel and applies it to what the driver foot say it needs; a better way to explain it is its a torque limiter. It only allows so much torque at a given pedal position. Stock tables are conservative and numb at best and that's why one would feel some times a lag or a goofy pedal with DBW systems. For a 6.2L V8 this is one of the most critical areas that must be addressed and modified to generate more torque /hp and throttle response. By reworking the OEM strategies makes your 6.2L V8 come to life!
02-10-2013, 02:35 PM
#67
Twice the hp and half again the weight, for probably better average mpg? I'd take that...
BTW Im not knocking your truck, had one, it was a good ole truck and had over 120K trouble free miles when I sold it.
02-10-2013, 09:26 PM
#68
I get a consistent 18+ mpg at 65 on cruise. Normally my 75% highway (75-80mph) and 25% city driving gets me 14.3. Towing, ugh, I'm lucky to get 10 mpg between 60 and 65 pulling my 5k RV. I don't regret the 6.2 one sec. I would buy one again. Once you EB guys get that intercooler thing fixed the EB will be a fine reliable engine too.
02-11-2013, 07:47 AM
#69
You know what would be cool... If that 1991 302 kicks the bucket swap a new 2011-13 302 engine and transmission into it. I bet that would make killer mpg. All youd have to do is junkyard one of the new 302 engines and transmissions. Or if you want to keep the manual transmission(I would I love manuals and wish i coulda had one in my 2010) swap in a 5.4 engine and manual from like 06 or 07
02-12-2013, 04:55 PM
#70
Senior Member
Your reg cab truck weighs what? 4200lbs maybe? These new trucks weigh close to 6000lbs in crew cab form. Ya your right, its close on the mpg. You get about what I was getting last summer on my Eco. But mine weighs 1800lbs more (according to edmunds specs.) and power difference is HUGE. I had a `93 Supercab with the 302. Put any one of Fords current engine offerings in a 4200lb truck and the fuel economy and power would be awesome.
Glad to see someone, such as yourself, actually keep their truck more than a few years and put some decent miles on it.