Which TB with JPC manifold?

[Kuro!]

Don't knock something just because it's out of your price range

 

[eng943]

The 62mm tb's boast little to no tuning and stock driveability...

And we are really not talking bigger here, its more just matching the stock/aftermarket manifolds sizes to the tb size. Ford knew what they were doing when they made the manifold bigger than the throttle body opening, $ for them to make on aftermarket upgrades.



I did do some searching and saw that on the 10 psi stock long block average setup gains were small and it mostly moved the peak curve to the right with the jpc intake, which makes sense since thats not what its designed for. And as the same for the other intakes can be argued that its due mostly to the cmc deletes. I do agree its a nice, well made piece and should work nicely if you ever build the block up and up the boost. My point is at your level the stock manifold with deletes and a port matched tb would show the same if not more gains than the jpc intake for alot less $. I agree calling jpc is great idea, straight from the horses mouth.

I still wonder how you think a bigger than stock tb wont have gains due to others reccommendations, yet decided on your own that a racing intake manifold was a good investment at your power level. That money could have went towards some forged internals! Just my opinion man, not trying to piss you off.

I hope we are both right. I'll call Justin this week, but even running CMC delete plates as I am now, I would think with the boost I'm running the manifold and TB together would provide some relatively worthy gains.

 

[Matt D]

I would stick with a ford racing twin 62mm T body

 

[Towelly]

A larger TB can in some cases lead to driveability/tune issues that aren't worth the gains. For a street car or even a street/strip car, alot of time is spent at tip-in and part throttle rather than WOT. It's not only the cost of the TB - it might mean extra time and cost in tuning or less enjoyment of the car on the street. Bigger isn't always better and a good understanding of the costs and performance tradeoffs in any build can maybe help avoid unanticipated consequences.

If you know how to tune the ETC this isn't a problem as long as the hardware is right.... If you or your tuner doesn't know how to tune for ETC you shouldn't be tuning or using that tuner...

 

[klaw]

 

[Towelly]

Don't be mad because your wrong.... Early BBK units had binding issues (Bad hardware) on top of this almost nobody had access to the ETC tables early on so a larger throttle body could not be properly compensated for in the calibration. Just because you read a story online about TB's being a bad idea doesn't mean they are, in fact, a bad idea.



Edit: Go back through the forum's... 90% of the drivability issues were either hardware or VERY early on in the S197's history when none of the aftermarkets had the ETC "Code" "Broken". Once both of these things were cured TB's became a good viable option. Look at the gains guys are getting with PD blowers. Are you telling me that those gains aren't worth a little extra time calibrating another table? Any drivability issues you hear about now are either a calibrator (Tuner) that doesn't know what he is doing or hardware issues elsewhere. Ask any big shops if they have any trouble tuning, even drivability, for the new crop of throttle body's out there.

Come to think of it, if you have trouble tuning for a T.B. you or your tuner shouldn't even be thinking about trying a intake manifold.

 

[klaw]

Where did I say once that they were a bad idea? I just said that there's more to consider than just the cost of the TB. Depending on funds availability and build objectives they might be worthwhile or not. My point is that someone should go into the decision with all the information - not just a "bigger is better" mentality.

 

[Towelly]

Where did I say once that they were a bad idea? I just said that there's more to consider than just the cost of the TB. Depending on funds availability and build objectives they might be worthwhile or not. My point is that someone should go into the decision with all the information - not just a "bigger is better" mentality.

Ok. Well my thinking is if your going to spend $1200 on a intake and then why not get everything out of it? If the proper research was done, someone should know that a intake manifold should be one of your last mod's if your going for the "bang for your buck" principle and should only be used if your trying to eek that much more our of the E.T. or the dyno sheet. In this case, it would stand to logic, that your trying to get everything out of your combo that you can right? So why cut yourself short when your at this point and not get a T.B. matched to the intake that, if tuned properly, won't cause any more drivablility issues than the intake manifold itself. If your at this point than any gain is a good gain right?

 

[Kuro!]

There are a lot of people in here with a lot of knowledge; but as it stands, the question asked was which throttle body works best with the JPC manifold.

So naturally, the people who have JPC manifolds should be the ones posting in here. This thread shouldn't turn into an internet knowledge pissing match. We have a lot of older smarter members, lets just keep this on topic.

Once again, with my JPC manifold i'm using the stock OEM throttle body.

 

[Towelly]

Because you own the part you know how the drivability tuning goes huh? Because I believe that is what the argument here is right? Gains vs tuning/drivablity issues... Not who owns the part's and who doesn't... Good try though.

 

[Jimmy k]

I use ford racing twin 62mm T body JPC intake, no issues
__________________

 

[Kuro!]

You need to stop getting a fucking attitude with everyone.

I have no drivability issues what so ever with my JPC manifold, and I built it myself, and I paid less for it than most people pay for a monoblade throttle body.

JPC kicks ass.

 

[SteveP]

This manifold on my car gained me 40rwhp. It was covered in MARCH 2010 MMFF and it was with the stock TB. Mike Dez (our tuner) has no problem with tuning as does many other tuners that post on this site. Their used to be an issue with tuning these cars because of the poor TB internals but times have changed and it's easy now and most companies fixed their issues. The FRPP that is made by ACCUFAB pretty much nailed it on the sport with the 62mm and the CJ for the shelby's.

 

[Towelly]

You need to stop getting a fucking attitude with everyone.

I have no drivability issues what so ever with my JPC manifold, and I built it myself, and I paid less for it than most people pay for a monoblade throttle body.

JPC kicks ass.

Not sure how you picking up an a "attitude" through the interweb's. I am stating facts and experience. If you taking any other way then you need to step away from the keyboard and breath. I'm not trying to pick on anyone or make anyone angry. Never said you had drivability issues, but how do you know that there would be any if you haven't even tried a larger throttle body? Let alone how much they gain or do not gain.

 

[Towelly]

This manifold on my car gained me 40rwhp. It was covered in MARCH 2010 MMFF and it was with the stock TB. Mike Dez (our tuner) has no problem with tuning as does many other tuners that post on this site. Their used to be an issue with tuning these cars because of the poor TB internals but times have changed and it's easy now and most companies fixed their issues. The FRPP that is made by ACCUFAB pretty much nailed it on the sport with the 62mm and the CJ for the shelby's.

Thats awesome! Congrats!

 

[klaw]

There are a lot of people in here with a lot of knowledge; but as it stands, the question asked was which throttle body works best with the JPC manifold.

The answer is that it's impossible to answer the original question without knowing the goals and budget of the particular build in question. There is no one right answer for all applications.

So naturally, the people who have JPC manifolds should be the ones posting in here.

Only if you've tested every possible TB on your JPC manifold.




When trying to chose the best part for a particular application it's important to define:

- what you're trying to achieve;
- how much time, effort, and money you're willing to spend; and
- what other performance tradeoffs you're willing to suffer.

It doesn't make sense to answer a question like the OP's with an absolute without considering the above.

 

[Towelly]

The answer is that it's impossible to answer the original question without knowing the goals and budget of the particular build in question. There is no one right answer for all applications.



Only if you've tested every possible TB on your JPC manifold.




When trying to chose the best part for a particular application it's important to define:

- what you're trying to achieve;
- how much time, effort, and money you're willing to spend; and
- what other performance tradeoffs you're willing to suffer.

It doesn't make sense to answer a question like the OP's with an absolute without considering the above.

Awesome post... I agree.

 

[eng943]

The answer is that it's impossible to answer the original question without knowing the goals and budget of the particular build in question. There is no one right answer for all applications.



Only if you've tested every possible TB on your JPC manifold.




When trying to chose the best part for a particular application it's important to define:

- what you're trying to achieve;
- how much time, effort, and money you're willing to spend; and
- what other performance tradeoffs you're willing to suffer.

It doesn't make sense to answer a question like the OP's with an absolute without considering the above.

Valid points, and I'm happy to clarify.

The goal for choosing a TB is to optimize the advantages of the JPC intake without hurting driveability.

I am not overly concerned with cost.

 

[Cobra SS]

you should ask Justin to get the flow data from L&M. they have flow tested the FR TB's and their 62mm can flow as much air as a 65CJ TB. I have the FR TB on a 08SGT that Justin sorted out for us. your spending the $$$ for his intake and a meth set up, look at your options on the TB's

 

[klaw]

The goal for choosing a TB is to optimize the advantages of the JPC intake without hurting driveability.

I'd think a the FRPP twin would be a good choice then. You'll probably want to have the tune tweaked a bit to make sure it's optimized to your liking. This isn't the cheapest solution but if cost isn't a huge concern it will certainly meet your performance goals.