GT350 Intake Dyno..ENJOY!

[sandeale]

The 5 to 8 ish hp/tq difference between the two runs in the bottom end I attribute to the dyno fudge factor....start to finish these runs were pretty much dead even

And it's possible that a full blown dyno tune could eek out a couple more for each setup but I'm positive the result would remain the same...the 5.0 motor doesn't need the 87mm tb...i would imagine a majority of the gains made from the PP2 package as tested by LMR is from the CAI and tune....Ford may even turn up the wick a little more in the tune to ensure the PP2 has a clear advantage over the PP1.....

Thinking about the PP2 from a business standpoint.....why redesign a new intake system for the gt when a ready made kit is already manufactured in house....but wait the TB end is larger, lets capitalize on that by pairing the correct size TB (also in house) for the CAI and charge even more......sorry im just playing devils advocate

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[GSLSE20B]

The 5 to 8 ish hp/tq difference between the two runs in the bottom end I attribute to the dyno fudge factor....start to finish these runs were pretty much dead even

Gt350 has a very noticeable 3k torque bump

 

[sandeale]

That's a lot smaller than it looks...9 lb/ft and again a toss up because it disappears shortly after....at 4500 the stock TB produces the same size bump over the 350

 

[GSLSE20B]

At full load the gt350 is making more torque than stock below 3k , the only thing that would keep it from holding that lead when higher flow comes into the picture is loss of load at the upper rpm . Cam timing needs to be adjusted for the extra flow .

 

[Gibbo205]

At full load the gt350 is making more torque than stock below 3k , the only thing that would keep it from holding that lead when higher flow comes into the picture is loss of load at the upper rpm . Cam timing needs to be adjusted for the extra flow .

My GT 350 IM, TB and CAI are due to be delivered next week, so I hope to get on the dyno to compare:

GT IM, GT TB, PMAS CAI vs GT 350 IM, GT 350 TB, GT 350 CAI, both setups tuned by Lund.

Cannot wait.

 

[angermgmt14]

My GT 350 IM, TB and CAI are due to be delivered next week, so I hope to get on the dyno to compare:

GT IM, GT TB, PMAS CAI vs GT 350 IM, GT 350 TB, GT 350 CAI, both setups tuned by Lund.

Cannot wait.

Sub'd

 

[bunk22]

Lots of good stuff in this thread. I ordered my GT350 IM and tb spacer today. Now I have the six-speed auto premium package, 3.55 gears with a JLT, 1 3/4" long-tubes and off-road x-pipe. My local tuner is very good and seemingly keeps up with the latest tuning and he has tuned about a half-dozen 350 IM cars......HOWEVER, all manual. I dont want surging or a noticeable loss of low end tq; also doing the E85. We shall see what happens.

 

[Lonmon]

I have to agree that the gt350tb does have better throttle response. I don't even miss my pedal max at all. I also agree that any power gain or loss is pretty well a toss up until cams are introduced. Other then some initial cold start issues with it, for the money the gt350tb is worth putting on if you plan to upgrade further IMO.

 

[Thoriniv]

I've been driving my setup for a few weeks now with the GT350 IM , e85 race tune from Lund, LT Pypes 1 7/8" off road headers, mbrp cat back, Steeda CAI.

I am absolutely loving this setup so far but am at a loss for which decision to make regarding injectors and the 350 TB

Quite a few people here with this setup and e85 have 47lb injectors versus our stock 39 lb hr. I see this quite often actually and now Lund is telling me that isn't at all necessary.

If the stock injectors don't lean out all the way up to 7800+ rpm then why do people switch to the 47s?

Also would switching from the stock TB to the gt350 really provide that much more throttle response. If so, how?

Thanks

 

[4V Mayhem]

I've been driving my setup for a few weeks now with the GT350 IM , e85 race tune from Lund, LT Pypes 1 7/8" off road headers, mbrp cat back, Steeda CAI.

I am absolutely loving this setup so far but am at a loss for which decision to make regarding injectors and the 350 TB

Quite a few people here with this setup and e85 have 47lb injectors versus our stock 39 lb hr. I see this quite often actually and now Lund is telling me that isn't at all necessary.

If the stock injectors don't lean out all the way up to 7800+ rpm then why do people switch to the 47s?

Also would switching from the stock TB to the gt350 really provide that much more throttle response. If so, how?

Thanks

I'm still wondering myself about the TB. I questioned it because of the difference the stock TB made over the GT350. But then the tune with the GT350 TB was questioned by others. So for now I don't think there is an answer one way or another. Although common sense would tell me that tuned properly, the GT350 TB should be better even if the difference is small.

As for the 47 # injectors. I think the stock injectors are fine if you do either LTs or the IM. But once you do both (LTs AND IM), I think that is when you want to upgrade. Because I don't think the stockers can handle that kind of power especially if you're gonna be shifting in the mid to high 7000 RPM range. Right now I have the stockers with the GT350 IM and TB and I shift at 7500.

 

[Thoriniv]

But once you do both (LTs AND IM), I think that is when you want to upgrade. Because I don't think the stockers can handle that kind of power especially if you're gonna be shifting in the mid to high 7000 RPM range. Right now I have the stockers with the GT350 IM and TB and I shift at 7500.

That's where I'm confused though as well, I have catless LTs and the 350 IM and even then Lund is saying going out and getting the 47s is a waste on this car and setup. Even from professionals there are so many varied points of view on pretty major components of any motor.

I did find a set of 47s for half price, so at least I have that going for me .

 

[Dominant1]

I did 47 lb injectors to leave open the possibility of going e-85 later!

 

[09jsw]

I did 47 lb injectors to leave open the possibility of going e-85 later!

Me too. I'm going in for a ported GT350 intake/Tb, #47 inj and Pmas soon then E85flex tune

 

[4V Mayhem]

That's where I'm confused though as well, I have catless LTs and the 350 IM and even then Lund is saying going out and getting the 47s is a waste on this car and setup. Even from professionals there are so many varied points of view on pretty major components of any motor.

I did find a set of 47s for half price, so at least I have that going for me .

Yea it seems to me that there are too many different POVs even among the "experts". And it even seems that they say one thing to one customer and then another thing to another customer. I know a few people who are tuned by Lund and they were told to go with 47s after LTs and the IM...smh. And then a few others, like yourself, were told the opposite. I think the problem is that these cars are still pretty new and not everyone is fully well versed in tuning them. Perhaps the tuners out there weren't as capable as they are now and so now they can tune it properly with the stock injectors. Maybe up until recently they were recommending the 47s as a precaution or something. Who knows. But it's getting a bit frustrating and confusing not being able to get consistent answers.

 

[GSLSE20B]

With my LTH ,gt350 IM and TB , my injectors couldnt hold .85 . I was hitting .90+ . 100% DC . With the LU47s I'm at about 50% DC max at 8k on e85 .

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