What is the diameter of the bore in an Explorer upper intake? Is it 65mm, or 70mm? I thought it was 70mm, but wasn't sure.
Should be 70mm. I've seen a few china ones vary somewhat.
Thanks Kitz. I've already got a 70mm EGR spacer. I plan to buy a 70mm Accufab TB this summer. That should work well.
It's probably a bit to much for a stock motor,but I don't know what you got either.
I've got a fresh 5.0 with GT40P's, Explorer upper/lower and a TFS stage 1 cam so it should work nicely.
That's a go,sounds good.
Didn't they COME with 65mm TB's? What the hell!! I guess I never really looked that close :crazy:
Not that you're gonna lose 20 horsepower from that little decrease in the opening lol
Yep. You're right. Explorer came with 65mm TB's. Depending on your combo, worthwhile gains can be had by upsizing to a 70mm TB and spacer. I ultimately want to use 24lb injectors. Since I was planning on buying an aftermarket MAF (like a C&L), I'll get a larger one that's calibrated for the 24lb injectors.
You did say Cobra intake, There is a difference. I edited this to say you don't need a spacer for a cobra!.
The front of the Explorer TB is 65mm. The backside and the opening to the intake are both 70mm.
Who said Cobra? Not me. :)
DAH,I'm stupid. I don't know where I got that,sorry.