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- #161
A BAP and some loosening of the torque limits will be the first order of business, I’ll self tune if HPT get access
Whipple Installed!
- OP 🔹 GT-SD
- Start date
Well she's in and no codes or drivability issues. I frigg'n LOVE it!
It’s transformative for the truck, people who ask why or haven’t had one won’t ever fully comprehend.
- OP 🔹
- #164
Congrats!
Thanks in no small part to your trail blazing!
Absolutely correct!
Any feedback on the instructions, were the edits useful? Did you leave the front end together for the project?
Not looking for kudos, just curious if the edits I sent apply to the 2020-22's
I did not have to pull the headlights and header out. I did have to pull my bumper to play with the pump mounting, winch and pump were wanting to co-exist in the same spot. Other than torque specs I was able to install with out instructions for the most part. I studied and read so much before the install and had things pre put together. I do this for a living so I was able to just pick up parts and put them where the go. Lucky me.... but GT-SD & your prior installs let me get to that level before I even started. I was doing this install in my sleep lol. My 2020 went really smooth, I already had the sp581 plugs here, I did order new Fragola o-rings for the fuel rails prior. Mass air flow screws were to short. The intake fit fine with out much interference with battery. I did relocate my JLT oil separator to the passenger side and cut the hoses down. I am glad I put that on when the truck was new, the intake valves looked GREAT. I spent as much time planning out where I wanted the relay and wiring, gauges as I did installing the super charger. I was worried that the t-map harness would not reach the mass air flow sensor with my chosen path. but fit perfectly.
For Whipples concern. The cost of the kit being what it is I would expect a higher level of accuracy with correct parts sent with it complete. Having to chase screws and o-rings down while seem petty but this was a $9000.00 + kit. I am fortunate that I am able to install my self and have a shop do do it in. However the only time I used air was to vacuum the cooling systems, it was all hand tools. Also including 2 belts one which is set up for dual alternators is dumb. Just but the right parts in the boxes and send it. The multitude of rubber lines wrapping around the back of the super charger should be replaced by a aluminum premade tube manifold. The line that goes to the bypass valve could have a lot more thought in its placement. Looks like a after thought.
BUT------Once the hood is shut and you feel that surge of acceleration it doesn't matter, it is just smiles!
For Whipples concern. The cost of the kit being what it is I would expect a higher level of accuracy with correct parts sent with it complete. Having to chase screws and o-rings down while seem petty but this was a $9000.00 + kit. I am fortunate that I am able to install my self and have a shop do do it in. However the only time I used air was to vacuum the cooling systems, it was all hand tools. Also including 2 belts one which is set up for dual alternators is dumb. Just but the right parts in the boxes and send it. The multitude of rubber lines wrapping around the back of the super charger should be replaced by a aluminum premade tube manifold. The line that goes to the bypass valve could have a lot more thought in its placement. Looks like a after thought.
BUT------Once the hood is shut and you feel that surge of acceleration it doesn't matter, it is just smiles!
Thanks for the great report, interesting you mention the winch and IC pump, as I don't have a winch, so I left the whole front end together except the grill and rad cover. Their mounting bracket had 1/4" of clearance., and the pump is out of harms way, unlike the F150 kit.
Exact same parts issues with mine, Viton O-Rings, MAP screws, jenky bypass line, and the 2 belt mystery, that was solved once I realized the massive amount of range the OEM tensioner has.
Note the plugs they send are one step cooler than the 581's, and not at all necessary IMO
Good job and congrats.
Exact same parts issues with mine, Viton O-Rings, MAP screws, jenky bypass line, and the 2 belt mystery, that was solved once I realized the massive amount of range the OEM tensioner has.
Note the plugs they send are one step cooler than the 581's, and not at all necessary IMO
Good job and congrats.
Not enough miles on mine to destroy a cat. But when it does a quick diet and some anti fouler action will be in order. The high flow cats are junk as well, from what I read. Promise the world till they fail and they will fail, then not the cats fault.... This is a big displacement engine with a 3.0 liter blower, A LOT of air and fuel is being displaced when you command it. It would truly need a huge convertor to keep up and be worth a darn. My 2 cents.
I got one on order, but have read that if you let the truck cool off after a hard pull, the cats will last. Multiple pulls back to back gets them too hot. The Whipple instructions say the remap is designed for stock headers and cats. They say don't change them.
We had an E30 pullied down / tuned Whipple F150 for 2 1/2 years, estimated over 950chp, and it did a lot of.....work. Over a thousand WOT launches, and numerous 1/4 miles, hundreds for sure.
We did have a cat efficiency code, but that was after it was driven while misfiring (it was my wife's daily), so the smaller F150 cats actually hold up pretty well. My thoughts are the bigger cats on the F250, coupled with the weak fuel system (which limits)power, means I am not concerned about that aspect.
We did have a cat efficiency code, but that was after it was driven while misfiring (it was my wife's daily), so the smaller F150 cats actually hold up pretty well. My thoughts are the bigger cats on the F250, coupled with the weak fuel system (which limits)power, means I am not concerned about that aspect.
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This...... At least on the '23+ trucks.
I'm not speaking to the '22 and earlier trucks as those can be tuned. I asked specifically about this and they said unless you can tune for it (which you and I can't yet) the only result of a change to the exhaust is just to make noise, not more horsepower.
I was also told that the headers and the cats are the limiting factor on this kit.
- OP 🔹
- #175
I have factory cats and a Ford Performance cat-back exhaust. From my early discussions with the Whipple team, they maintained factory "cat cooling" parameters in the performance map. Essentially, it enriches the combustion mixture when the temperature becomes too high, thereby cooling it. This keeps the cat temperatures within safe operating ranges and limits. Your factory calibration performs the same function based on load and temperature. The thing that KILLS cats is misfire. Change your plugs and wires every 25,000 miles or so, and hopefully, you won't have any issues.
The fuel system is far and away the limiting factor with the kit. 5 star tuned one and it needed injectors right away. I am waiting for custom tuning and a Fuel pump booster add.
I doubt the exhaust system would be an issue under 1000hp, the smaller F150 system (minus a single resonator) worked fine on my tuned Whipple F150.
Hence my concern for mine that I can't still go WOT without a random cylinder misfire. Whipple has acknowledged a new tune is needed. It's a cold climate issue apparently, due to the large throttle body and having to severely limit power in dense air due to the fuel system limitations.
From what I know, the spark plug wire issue is to a lesser extent in the newer trucks, and the advice to change the plugs and wire more frequently, is prudent / good advice still, it may not be necessary. It's just such an odd thing to have to do in 2025....
A note on cat cooling, on my F150, my logs showed cat cooling in effect with roughly 7 seconds of WOT, so the cats heat up pretty fast at high power levels. I was the oddball in the fast F150 community to retain cat cooling and stock exhaust. My wife daily drove that truck for 2.5 years, from arctic winter to our warm summers.
I haven't done a full 1/4 mile log yet with this truck as the CEL stays on if I do that.
Is this thing (whipple) out the box set up for max power? Of course not, but if you want to have a fun reliable truck have at it in o.t.b form. Now If more is desired, swap pullies, tune for e85, mod the fuel system as needed. But just know it now moves more in to that race truck range. Heavy and fast is expensive to maintain, especially if you beat on it like a teenager. Right now it will pull like normal just easier, run really good for a heavy ass truck on 37's and sound wonderful doing it with a little more work(plugs more often and belt). I am kind of regretting regearing to 4.30's before I did this. The 3.55's would have maintained the fuel economy and plenty of power on tap. That ship has sailed and I am not looking back.
- Jan 4, 2025
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- '25 F-350 Lariat 7.3
- '67 M35A2, '81 F-150, '84 F-250, '92 Bronco, '09 F-150
Fuel economy? Never heard of her...
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