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Re: BBK Dual 65mm Throttle body review
Update:
It was cool and damp the past few days here in Florida with the tropical storm and all. When driving, I noticed that the idle would hang a bit around 1200 PM and eventually fall to 800 RPM or so when the engine was at operating temperature. I sat and figured out what it was ( I THINK) I HAD made the IAC restrictor with 2 small (9/32" or so) holes and it occurred to me that not enough air was going through it to "feed" the IAC motor. I went and made another IAC plate this afternoon, this time with the one "normal" size hole, and the other hole 1/8". I started it up and the idle returned IMMEDIATELY, but went down to 500 RPM before recovering with the A/C on, and wanted to stall. I opened up the plate to 3/16" and it seems fine now. I'll see in the morning how it is. I think I am at 99% now. Hopefullyanyway. |
Re: BBK Dual 65mm Throttle body review
So far so good with the 3/16 IAC restriction.
Even with the engine cold and the AC on. I want to try an Accufab single blade unit when I make my first million............... |
Re: BBK Dual 65mm Throttle body review
When I installed the dual 65mm on my Mach1 I actually saw a 5 HP loss on the dyno. Throttle was stuck, you really couldn't give the car just a little gas to hold the clutch on a hill or anything.
After having it tuned at Murillo's I took the **** thing off as soon as I got home. Anybody wanna buy it. LOL! :rolleyes: |
Re: BBK Dual 65mm Throttle body review
Mine did the same thing as you described, but I was a bit determined to see what it actually did.
It's worth the trouble if you have the time to tinker. It is NOT a simple bolt it on and forget it type of mod, no matter what BBK may say. A part that was engineered better would have been helpful. Mine is fine now. |
Re: BBK Dual 65mm Throttle body review
Update:
My MPG has held steady around town ( A/C off = 20, A/C on = 19). The slightly "sticky throttle" issue had me stumped for a while. I tried loosening the throttle blades slightly, and cycling the throttle blades to slam shut, and it seemed to temporarily help. HOWEVER: I did notice that when it rained, the throttle didn't stick. Sounds wierd, I know. I did a comparison between the stock TB and the BBK. Amazingly, my brain concluded that it was not the throttle blades sticking at all. If you notice, the "bung" on the end of the throttle cable where it goes onto the TB is metal. On the stock TB the attachment point is phenolic/plastic and smooth.On the BBK, the attachment point is metal. The cable end pivots when the throttle is opened and closed, so the "bung" at the end of the cable actually rubs a little bit. The stock TB when opened smoothly pivots, where the BBK is metal to metal, and has a "rubbing" feel to it. So,when it rained, a little bit of moisture "lubricated" the throttle pivot point and smoothed it out. I.E. No "binding feel". To test it, I put a small amount of Ford Blue teflon grease at the TB end of the cable. Smooth as silk now. As engine heat melts and disperses the lubricant, I guess I will need to add some more, as well as clean the area of melted grease. As I said before, good idea, I am happy with the performance of the BBK unit. But the QUALITY and engineering of the product is very poor. My dyno numbers in my sig are with the BBK unit. BTW: I do not believe a dyno can measure throttle response. Even if I lost a couple of HP as some have experienced, the MPG I am getting, to me, makes it a worthwhile mod. But it would have been nice if BBK had used a plastic/phenolic end for cable attachment, among other things. The product needs drastic improvement. |
Re: BBK Dual 65mm Throttle body review
Good read, it sounds to me like I wish to freaking gawd I would of never bought the **** thing. I will buy all the beer and throw in a steak dinner or 3 if ya come get mine hooked up when I get the new motor in the car! :wtf:
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Re: BBK Dual 65mm Throttle body review
If you have an issue with it, shoot me a pm and we can talk via phone.
It DOES work, but it's more like the old days when you had to modify HP parts to work. |
Re: BBK Dual 65mm Throttle body review
i did it at work one day first pull was 318 sae, put the throttle body on next pull was down about 8 hp all the way to 6300 and air fuel was right on, mine was stiff as **** also, got better with time, i had it on when we put the tt on, i going to put the stock one on and see what diffrence it makes
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Re: BBK Dual 65mm Throttle body review
I think the stock throttle body is enough & just a spacer would work fine.
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Re: BBK Dual 65mm Throttle body review
With a properly functioning TB with larger blades, (Accufab, BBK)
you WILL definitely gain throttle response and possibly MPG. Remember, PEAK HP isn't everything. |
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Re: BBK Dual 65mm Throttle body review
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Your midrange WILL pick up. From tip-in you will see a SOTP gain, and is definitely worth it. A/F, I don't think it will affect it much., since you are already past the MAF. More of an airflow Quality mod than Quantity. I have had good luck with TB's, but many have not. |
Re: BBK Dual 65mm Throttle body review
I have the BBK unit, and didn't have any of the issues you talk about. I do have a little stiffer than normal pedal feel, but I expected that. The idle does suck and all, but I figure that would be from my Stage III cams. My blade NEVER stuck and didn't have any of the other issues you talk about. The only thing that bothers me is the idle. I wish I had a stock T/B laying around to test to see if my T/B is the problem with the idle. Good W/U though.
Matt |
Re: BBK Dual 65mm Throttle body review
Car was sold last summer, and the TB was working fine.
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Re: BBK Dual 65mm Throttle body review
Had a bbk 70mm TB on my 04 GT...biggest mistake i ever made. Throttle stuck all the time and no real power gain. Got rid of it and bought an accufab...works great!
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Re: BBK Dual 65mm Throttle body review
yup just found out that the twin 65 is nothing but junk. Had all the same problems everone else did. Im looking to just give it away if anyone wants it. Im not shipping it so if u want it u have to come get it, I live in East Tennessee.
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Re: BBK Dual 65mm Throttle body review
I'm new to this site and only found it once i did a search for the sticking tb. I did all the mods above and they did help a little but not comepletely. I did finally get it fixed and it doesn't stick at all and i am not using the extra spring that came with it. The problem is that the throttle plates and the tb bores are not the same. I had to hold the tb up at a light and see where the tb plates were hitting the bores at and used some sandpaper to make the blades match the bores. It's been about 3 weeks now and it works just like stock.
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Re: BBK Dual 65mm Throttle body review
Having owned both the BBK and Accufab,
I can tell you the Accufab unit is miles ahead in quality. |
Re: BBK Dual 65mm Throttle body review
was there any issues with the accufab install? just a straight bolt on??
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Re: BBK Dual 65mm Throttle body review
Early Accufab units had issues, but they are fine now.
Mine has been fine since day 1. In fact, last week I did an MPG run with the Mach, (drove speed limit on cruise, drafting trucks, etc.) and got 29.67 MPG. I may have done better this week. |
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Re: BBK Dual 65mm Throttle body review
so accufab has worked there kinks out of there tb. very iffy on buying one now after reading these posts. Hoping all of these were BBK.
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Re: BBK Dual 65mm Throttle body review
Relearning idle has nothing to do with a sticking/binding throttle.
Good thing you posted that, otherwise all those years at delaerships and Ford development would have been wasted. |
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