We are beginning to sell our 74mm TB upgrade for the N/A motors.

Here is a link: http://tvtdesign.com/inc/sdetail/1344

Price is 250.00 shipped to the USA.

This is a simple bolt on mod and will require no other modifications for proper functioning. Typical gains on a bone stock car are 5-8 HP, gains for an intake/tune car are closer to 15 HP.

These are OEM MB V8 Throttle Bodies that we rebuild. We also sell brand new Throttle Bodies, but the cost is near $500.00.

This is a great mod for those looking to get more Top end pull. Throttle response does not suffer nor does low or mid range torque.

The funny thing is that the hole on the manifold where the TB bolts up to is already bored out to 74mm, the stock one is too small from the get go.

For reference this is the same size Throttle Body used on 500 HP+ MB motors, so this will be the last TB you will ever need.

 

What about (CEL)?

What about a price break if someone gets CAI

 

Is it a matter of machining the throttle bore to open it up and installing a bigger plate?

 

Where's the SRT love? We need more power as well.

 

any special price for the tb and a tune?

 

You can do it that way, but it gets expensive.

For all you "bargainers" PM me with your requests and I'll do what I can on the prices.

TB+CAI= 510.00

TB+Tune= 700.00

If you purchase either the TVT250 or TVT265, the TB is only 200.00!

 

Seriously? You get a new tuner every week making parts for your cars. Granted they are usually all the same parts, but hey at least you get the attention.

 

I'm totally doing the TB and tune after I do the Cali emissions inspection.

 

Have you done a dyno? Are you offering the instructions with it?

 

That is a great price!

 

so..

with the tvt265, and this TB, we can expect around 275hp?

is this correct?

been saving my pennies all winter.. want to get all of it at once towards the end of spring

 

I'm with him - let me know - let's talk

 

Before I quote any expected numbers with this in addition to the TVT265, I want to get it on the dyno.

With our Stage 2 manifold I'm expecting more then 275 HP, so I really want the numbers to be exciting.

Just as a heads up we will be offering the Stage 2 mani and 74mm TB for 950.00 shipped.

I'm hoping to get the car on the dyno this week.

 

Wow

Its been a while since I've looked at this thread.

Those prices are very fair!

 

Hey I'm just wondering if you are going to provide the instructions to installing this part if I bought it?

 

You said your going to sale the stage 2 manifold with TB for 950.00. Do you have stage 2 injectors to go with it? if so how much would all three be?

 

I can provide a video of the install, it's basically 4 bolts. Right under the MAF there is the TB, take it off, and install the new one.

Extremely easy.

 

Stage 2 injectors are not needed. The stage 1 injectors are fine up to a little over 300 HP.

 

Hey TVT,

Quick series of questions for you about the 74mm throttle body.

I live up here in Denver, CO, which is a smidge above 5200 feet.
As you know, with every 1k ft in elevation increase, there is a ~4% decrease in power output. So at 5k feet, I've lost 20%, and when I go up into the 11k ft region, which I do for all the really fun roads, I'm now down 44% compared to sea level.

So how much of an increase if the 74mm TB in comparison to the stock unit?
I don't notice where you mentioned what the size is, and I don't remember reading it anywhere in the site.

How much of an increase is there in air flow between stock and 74mm?

How much of a difference would you believe that there would be in the performance of a Crossfire up in my region between stock, and 74mm TB, at the different altitude levels I've mentioned?

Right now, I'm sure that this car is backing off on the fuel mixture due to the thinner air.
I'm wondering if the larger TB might get the performance back to what sea level should be here at 5200 ft.

Thanks,

BC.

 

Stock TB is 68mm, so you are seeing a 6mm increase. This will not compensate for your elevation, but it will make it faster then it is now. To gain 20% in HP I would suggest our TVT265 kit. This will provide a tune and injectors to help with the higher altitude. You can then add our TB for added performance from there.