70MM TB and GT40 lower Questions hurry!

95KBGT

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ok well im soon to be getting my injectors installed and to do this they have to pull the KB. i was curious where can i get a gt40 lower intake only. is it as simple as unbolting the stock lower? and i need a bigger TB what size should i go with? Brand? and the biggest question is, i have a stock TB right now if i go bigger will i need a new intake? any help would be awesome.
 

wayne94mustang

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i see explorer lowers ( same as gt-40) all on ebay all the time.

as far as the tb id go at least with a 70mm the cai will still work
 

SaleenStang94

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keep checking ebay, new ones come up every day. i got mine off of ebay. jus search "gt40 intake" or "gt 40 intake" and someone will have it
 

95KBGT

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well i went to go talk to the guys at HPP again today. The lower gt40 is just not going to be in the budget. I was thinking it would be simple bolt on and put the KB back on then go, well theres a little more work than that. On the other hand Im upgrading from a 55MM TB to a 75MM TB, and 42LBS injectors. HPP is charging me $350 out the door, for installing the TB and new Injectors, and a new tune. not bad at all.

Has anyone seen big gains by upgrading their TB?
 

jimgt95

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95KBGT said:
well i went to go talk to the guys at HPP again today. The lower gt40 is just not going to be in the budget. I was thinking it would be simple bolt on and put the KB back on then go, well theres a little more work than that. On the other hand Im upgrading from a 55MM TB to a 75MM TB, and 42LBS injectors. HPP is charging me $350 out the door, for installing the TB and new Injectors, and a new tune. not bad at all.

Has anyone seen big gains by upgrading their TB?

You have a 60mm throttle body, stock.

The standard Kenne Bell inlet has a 70 mm TB opening. I would recommend going with a 70 mm, not a 75mm. It will be a much smoother airflow transistion. You will not be gaining anything with a 75 over a 70 (in fact you may lose a bit due to airflow turbulence). You should see a little gain when going from a 60 to a 70 mm TB with your setup. I would estimate 5-8 hp. It really depends on what else you have in the inlet track. Don't expect big gains.
 

95KBGT

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hey jim, do you know of any good water/meth injection sites? im looking into them..
 

jimgt95

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The two big ones that I can think of are snow performance and Anderson Ford Motorsports' Mr. Freeze. Just :google2: those names and you will find the sites.
 

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