You don't need anything with the Whipple or the Roush. They are both complete kits. Bolt on and drive out of your garage. However it is my preference and that of many others to add 39lb injectors M-9593-M39 to the Whipple kit. Reason being the factory pump is a variable speed and in the Ford tuning for the Whipple they speed up the pump to raise the fuel pressure to 65-70psi which nearly max's the pumps duty cycle. This forces more fuel through the injectors thus making them act like larger injectors. Again this is Fords doing but its a bad idea. Its added stress on the pump and to me thats just asking for a premature failure. With 39lb injectors the duty cycle drops back down to more normal levels and all is well. Swicthing injectors will require a custom tune. So your bill should look like this.
$3300 Whipple (what they've been selling them for the past 3 months.)
$261 Injectors
$500-600 for an SCT X3 and dyno tune. Keep in mind you are gonna want a custom tune even with the Edlebrock or any blower for the sake of the tranny. Shift points, firmness, power allowed through, TC lockup, torque management all need to be taylored to your needs especially since you will be towing. The can tunes for all blowers are mild to say the least. But that aside you want someone who understands your personal needs and wants as well as someone who has an understanding of the workings of the trucks internals (ie tranny, engine). This is why I chose Mike Troyer. Here is a link for the injectors. http://www.blueovalindustries.com/en...el/en4545.html

 

As for the throttle body, the factory one (73mm) is suffecient for my truck at 10psi. Not saying I couldn't pick up 7-10hp with a larger one but its not needed with 8psi or less.
Btw if you will pm me an email addy I can send you a PDF of the Whipple install manual.

 

Just read the PDF install manual for the Edlebrock from there site. No throttle body included. Uses the stock one. And it also uses the stock thermostat. Thats crazy. A boosted motor at 193 degrees. Did anybody here a pinging sound?? lol It also reuses the stock gaskets, has you grind off the tab on the tensioner like the Whipple. The killer is you have to re-route and replace power steering lines which means draining the system and you have to install and oil filter relocation kit. Not a huge thing but its extra work and additional chances for problems. The only other downer I saw was the intercooler tank which is the size of beer can.

 

Just for the record, I still use my factory thermostat....

And twinskrewd is correct, no matter what you will need to have a custom tune. I beleive JDM has done a few edelbrock kits as it is my understanding that did help with some of the development(as they did with the saleen blower).

Parts wise for the whipple after it is all said and done(shipping etc.) you are looking right over 4k with tuner and injectors. You will make more power, be as reliable if not more, and be a much much happier customer. Not to mention when you want to upgrade, and you will TRUST US, you have the best blower for power potential.

 

PLUS you have over $3000. dollars to upgrade or go on vacation!

Phil

 

I just installed my whipple a few weeks ago that I got from JDM. The service from JDM was excellent. I first installed the Whipple with the Ford tune and stock injectors. The tune is not that good, you don't even really feel the tranny shift when you get on it. It almost feels like you have a single speed transmission. My stock injectors were not able to maintain enough fuel as it would run lean after 60% throttle. I installed the JDM tune with the XCAL3 that I had also ordered with the Whipple. The shifts were much better, but my stock fuel injectors would still run lean past 60% throttle. I don't know if the lean condition is caused by my temperatures latlely, this morning it was -14. I had ordered the 39# injectors from Blue Oval and finally installed them the other day after JDM sent me a new tune (for FREE!!!!). Now that bad boy is rocking. The wideband gauge shows good numbers at full throttle and the shifts are good. The email tune also looks really good on the wideband while cruising down the highway. JDM was great to deal with and the service for me was excellent. I have right about 4K in the install with the XCAL3 and the 39# injectors. This summer I plan on getting a dyno run on it to see what it does and if there is any room for improvement.

Tim

 

Yes, -14 is exactly why you were going lean...

 

How was the install Tim?

The OP might want to here about that too.

Phil

 

Make sure you have at least a 1/4 tank of gas when you get aggressive with the loud pedal. You might not be going lean, but starving the fuel pump. We've all been there, trust me. You really shouldn't get aggressive with the loud pedal until you're close to operating temperature at those temperatures either. My tune obviously pulls a lot of timing at low operating temperatures because the motor falls on its face when I use a little too much pedal.

 

Tank was 3/4 and fuel pressure was good, the 39# injectors fixed it now. I do baby it when its cold for quite some time. I do need to change my thermostat. I feel the 160 is just to cold for me in the winter with the temps I see.

The install was pretty easy. I started doing some things before the install. I extended the TB harness, installed the IC and pump, cut out the fender and installed the plate for the new airbox and changed the sparkplugs. I worked on these parts for a couple of days in bits and pieces. I got new gaskets and modified them beforehand and had them on the Whipple before I even started the install. I didn't end up really needing the new gasket set but I liked having it on hand in case I did need it.

When the day came to install the Whipple I started about 8 AM and had the truck running by 3 PM. The only pain in the install was trying to remove the bolt on the back of the drivers side head that was holding the line. I couldn't find my 10mm ratcheting wrench(found when I was done) It was pretty straight forward. The only issue I really ran into was the vacuum routing. Mine is a very late build 04 and had the vacuum lines like the 05-06 in the pictures so I had to get a little creative with some lines but it was really no big deal. All the lines are hooked up where they need to be and I ended up using some factory plastic vacuum lines from the old intake.

If I was to do it again I probably would have been more patient and waited for my 39# injectors and tune before I did the install so I wouldn't have had to gone back and change the injectors. I had already had the injectors but was just waiting for the new tune. I was like a kid at Christmas and just couldn't wait.

I really looked hard into the Edelbrock before I installed the Whipple. It seemed like a good kit, although the install for the 4x4 was a little more involved. I thought about being the different guy on this site that didn't have the Whipple or Roush. When JDM came out with the sale on the Whipples(Thanks twinskrewd!!!!!!) it was a no brainer to me for the price difference.

Tim

 

My install went smoothly. I drove the truck to the dyno shop on the the stock injectors and swapped them out in there parking lot while they finished up the car ahead of me. It only takes about 45mins to swap the injectors out. Taking the rail off is a waste of time imo. It can be easily done without it.

 

Quick question, I read on hear a couple of times about putting a lower temp thermostat, would that need a tune or calibration in the computer to compensate, or does it automatically adjust to the new temp. thermostat?

 

Yes. If you were to change your thermostat from what your truck is tuned to run on you would need an update.

 

Starting to lean towards the whipple. When I order from jdm it comes with three tunes. I'm guessing I'd work with them so those tunes included the new injectors & trans valve body. Then I could drive to dyno if I needed more. Kit comes at 8psi, but above I think fatherford said 10psi? The instructions for the whipple say if you have a catback your psi will be lower due to less back pressure. Should a pulley be bought as well to boost psi?

Thinking about having the plugs done by someone and the rest I'll do.

 

Another one saved lol. I would stick with the stock pulley for now. Mine made 8psi with catbacks and dropped only slightly with a full exhaust. The drop in boost is not a loss of power but rather a sign of a more efficient setup. Since your towing a lot I'd stick with the 8psi pulley and see how the truck responds and holds up.