HIF6 conversion on a 2000 TC Automatic

#1
Just wondering if anyone has ever gone all out and done the HIF6 conversion on a (2000) Auto running a TC head. Not expecting it would turn it into a rocket but might it address the lower end dead spot that makes the Auto so uninspiring to drive? Also, do they need to come off a 2200 or can you build them up from what ever you can get your hands on?
 

PeterZRH

Well-Known Member
#2
I believe the standard 2200 auto knocks 4 seconds off the 0-60 time with only one carb, so I think the extra ccs are likely to be your biggest gain as far as torque and delivered performance is concerned. Not surprising really as additional carbs boost breathing and mixture deliver higher up the rev range. The "TC" aspect will probably do more to increase fuel consumption than actual performance.

All speculative of course. I'd love to be proved wrong.
 

Demetris

Well-Known Member
#3
I have done this conversion in my TC many years ago, and like others i am happy with it. The engine becomes more responsive at the lower end, they are far easier to tune, and i have found that they tend to hold their tune better. Also the engine as you would expect idles much better.
You'd better to start by a complete set off a 2200 TC though, because among other things the throttle will be cable actuated, so you will need the assortment of brackets, levers and cable that convert the throttle rod movement to cable. If you get stuck, it is not impossible to create these parts from scratch, but as you understand, life will be easier if you already have them available.
 
#4
I have done this conversion in my TC many years ago, and like others i am happy with it. The engine becomes more responsive at the lower end, they are far easier to tune, and i have found that they tend to hold their tune better. Also the engine as you would expect idles much better.
You'd better to start by a complete set off a 2200 TC though, because among other things the throttle will be cable actuated, so you will need the assortment of brackets, levers and cable that convert the throttle rod movement to cable. If you get stuck, it is not impossible to create these parts from scratch, but as you understand, life will be easier if you already have them available.
Your car is a manual isn't it? Wondering if anyone's done it as part of an SC to TC conversion?
 

Demetris

Well-Known Member
#6
Your car is a manual isn't it? Wondering if anyone's done it as part of an SC to TC conversion?
Yes, my car is manual. I thought that you have done already the TC conversion, and therefore came up with something for the kick-down linkage. As harvey says though it is somethink already done, so have a search within the forum.
 
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