SM105K's SHO BIBLE/BUILDS/LIFE
- Thread starter SM105K
- Start date
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FWIW a few weeks ago I used my wife’s NA 3.5 Flex (6F50 trans) to haul a 24’ pontoon over 300 miles. I was watching trans temp like a hawk, and on flat-ish land it was hey pretty steady around 210-215 degrees. Coming home sans trailer, it was still 210 degrees but just took a lot longer to get to that temp.
What I’m getting at is I think you’re still at the design temperature of the bypass valve and nowhere near having the cooler fully taxed. Replacing the trans cooler won’t help you if the bypass valve is still limiting flow to the cooler, so you might want to explore different valve options first.
lol never mind I see you already did it and it seems to be helping
ridered74
SHO Member
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I can identify with the idiot moment. A couple weeks ago when I changed my oil, I poured about a third of a quart into the oil filter, then rolled under the car on my creeper to put the filter on the car. I could not get it to thread for the life of me, so as I rolled back out from under the car I accidentally kicked the rest of the quart of oil over. Usually I would put the cap back on it but for whatever reason I did not this time. After cleaning up the oil and already fuming I realized that I had bought the wrong filter. Had to go back to the parts store to get the right filter and another quart of oil. Luckily there are two different parts stores almost side by side less than a quarter mile from my house. I went to the 2nd parts store to get those. No need for the other parts store to know that I'm an idiot.
SM105K
Streetlight Grand Prix Champ/ IG @fafomotorsports
I have done that exact thing. However I had to do the walk of shame....
Angrymongoose
SHO Member
I am so glad I'm not the only one to have kicked the oil over. I kicked over a 5 quart jug once. That was not a good day.
SM105K
Streetlight Grand Prix Champ/ IG @fafomotorsports
So this weekend I changed the oil and did a 5 out and 5 in trans fluid swap. Oil only had 2,100 miles on it. However it was treated pretty rough and was pretty black. I am heading to Cali next weekend and as always, I change the oil and trans fluid before longish road trips in the SHO.
On all of my test driving with the new trans cooler temps never got above 195 degrees. I am super happy about that. However, Thursday will be the test. 90 mph sustained in 105 to 110 degree heat for hours at a time, will be a good test for the new trans cooler set up. I hope it hold at 200 degrees or below. That is way better then the sustained 217 degrees before.
On all of my test driving with the new trans cooler temps never got above 195 degrees. I am super happy about that. However, Thursday will be the test. 90 mph sustained in 105 to 110 degree heat for hours at a time, will be a good test for the new trans cooler set up. I hope it hold at 200 degrees or below. That is way better then the sustained 217 degrees before.
SM105K
Streetlight Grand Prix Champ/ IG @fafomotorsports
Okay! Hottest the ambient temp got was 109. Fastest I got up to 105 mph. I averaged 88 through AZ, and roughly 83 through CA. Hottest the trans got was 199.23 degrees. I would say that is a win for the upgraded cooler.
SM105K
Streetlight Grand Prix Champ/ IG @fafomotorsports
On my return trip I averaged 88 mph through CA and 95 mph through AZ. Through Coachella (big long hill sections) in 113 degree weather my trans got to roughly 205 degrees. Ambient air temps never got below 109 degrees from Palm Springs all the way to Phoenix. After getting through the hills, it leveled off at 201 degrees. I will take those numbers all day.
Michigan-SHO
SHO Member
That’s a huge win! You have got to be adding a ton of life to your trans.
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Michigan-SHO
SHO Member
Haha, did you strip the interior or what!? That’s better than some non tuned SHO’s get.
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SM105K
Streetlight Grand Prix Champ/ IG @fafomotorsports
Nope. Full weight with me in it and my small bag. Tires set at a cold 44 psi, freshly washed so she was stream lined. My H&R's had to have played a role in this as well. I also removed 1/3 of my weather stripping under the hood (drivers side) and cut open the vents on my splash guard.
Best I have ever gotten was 26 mpg averaging 75 mph on 91 octane on the same trip.
joe raptor
SHO Member
what's the idea or benefits of cutting open the vents on the splash guard ??
Michigan-SHO
SHO Member
There are vents that go directly into transmission area along with the PTU area. Kind of acts like a Ram-air under the car.
However, from the factory they are blocked off.
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SM105K
Streetlight Grand Prix Champ/ IG @fafomotorsports
If you look at them, they direct air to the exhaust and to the PTU. The Flex came with them stock "cut" open. With that being said, if you can direct more air to critical components under the car to cool things why not?
I have been 137 mph with this set up and everything was stable. My hood didn't bubble and it seems like everything is happy. I am not worried about water either, because some SHO are running about with the splash guard.
6500rpm
Quality Always Shoots Straight
You just answered the million dollar question for me. Anything that helps carry the heat out the back of the pan is a bonus, my only hold back was if it would induce any noise or fluttering. Several Ford and othr manufacturers use the ducting (usually with a bit of venting to direct the air on the inside). It always made me wonder why Ford has the delta's on the pan and didn't open them.
SM105K
Streetlight Grand Prix Champ/ IG @fafomotorsports
I agree sir.
SM105K
Streetlight Grand Prix Champ/ IG @fafomotorsports
Incoming Upgrade:
I have needed a HPFP for awhile now. I have tried every way to justify spending the money for a XDi. I have come close to purchasing one more times than I want to admit. However, I couldn't pull the trigger.
That being said. I know I will catch some crap for my next statement.
I recently purchased a slightly used FS pump. I weighed the pros and cons (they can attest to that) and for the price I couldn't pass on the opportunity presented to me.
What I took into account:
Yearly mileage of my SHO: Less then 4k a year (if that). I don't daily my SHO.
Mods: I have all of the supporting mods (minus turbos).
Single Fuel Source: I should be able to run straight E54 out of the pump. No more mixing, just testing.
Fuel Pressure: I won't have to worry about FP drops anymore (my stock HPFP recovers well). I still have boost issues, but this should basically allow me to pin the gates closed and let them eat.
I have only seen one documented FS HPFP failure (not all facts have been presented yet) and one with XDI. I know there are a couple of 11 second SHO's on the FS HPFP as well.
I will be removing my stock HPFP and vacuum sealing it. It will make its new home in the trunk with the exact tools needed to change it out. When I go on long road trips I will swap back in the stock HPFP and change tunes. When I get to my destination, the FS HPFP will go back and I will reflash the tune. Then the GAP band tour will begin.
I will modify the foam and engine cover as well. If I cant see it, then it isn't there? Correct?
I have needed a HPFP for awhile now. I have tried every way to justify spending the money for a XDi. I have come close to purchasing one more times than I want to admit. However, I couldn't pull the trigger.
That being said. I know I will catch some crap for my next statement.
I recently purchased a slightly used FS pump. I weighed the pros and cons (they can attest to that) and for the price I couldn't pass on the opportunity presented to me.
What I took into account:
Yearly mileage of my SHO: Less then 4k a year (if that). I don't daily my SHO.
Mods: I have all of the supporting mods (minus turbos).
Single Fuel Source: I should be able to run straight E54 out of the pump. No more mixing, just testing.
Fuel Pressure: I won't have to worry about FP drops anymore (my stock HPFP recovers well). I still have boost issues, but this should basically allow me to pin the gates closed and let them eat.
I have only seen one documented FS HPFP failure (not all facts have been presented yet) and one with XDI. I know there are a couple of 11 second SHO's on the FS HPFP as well.
I will be removing my stock HPFP and vacuum sealing it. It will make its new home in the trunk with the exact tools needed to change it out. When I go on long road trips I will swap back in the stock HPFP and change tunes. When I get to my destination, the FS HPFP will go back and I will reflash the tune. Then the GAP band tour will begin.
I will modify the foam and engine cover as well. If I cant see it, then it isn't there? Correct?
ridered74
SHO Member
- Joined
- Mar 27, 2015
- Messages
- 1,105
- Reaction score
- 1,491
Incoming Upgrade:
I have needed a HPFP for awhile now. I have tried every way to justify spending the money for a XDi. I have come close to purchasing one more times than I want to admit. However, I couldn't pull the trigger.
That being said. I know I will catch some crap for my next statement.
I recently purchased a slightly used FS pump. I weighed the pros and cons (they can attest to that) and for the price I couldn't pass on the opportunity presented to me.
What I took into account:
Yearly mileage of my SHO: Less then 4k a year (if that). I don't daily my SHO.
Mods: I have all of the supporting mods (minus turbos).
Single Fuel Source: I should be able to run straight E54 out of the pump. No more mixing, just testing.
Fuel Pressure: I won't have to worry about FP drops anymore (my stock HPFP recovers well). I still have boost issues, but this should basically allow me to pin the gates closed and let them eat.
I have only seen one documented FS HPFP failure (not all facts have been presented yet) and one with XDI. I know there are a couple of 11 second SHO's on the FS HPFP as well.
I will be removing my stock HPFP and vacuum sealing it. It will make its new home in the trunk with the exact tools needed to change it out. When I go on long road trips I will swap back in the stock HPFP and change tunes. When I get to my destination, the FS HPFP will go back and I will reflash the tune. Then the GAP band tour will begin.
I will modify the foam and engine cover as well. If I cant see it, then it isn't there? Correct?
No harm in buying one used, you aren't giving 'them' your money. Lol!
Logo can easily be covered with a sticker or something if necessary. I think you will like it!
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