GT350 Intake Dyno..ENJOY!

[Silver50Pony]

Great result!

I really am starting to believe all we need is the:
350 intake manifold
air-raid tube
adapter
high flow panel filter

Might as well keep the stock throttle body and stock air box setup, it is clear all the gains are coming from the tune and intake manifolds.

Go with a steeda cold air with insert removed or jlt. The more air pushed into that gt350 manifold the greater the gains and it will make much more gains then stock size tubing and air box .. Trust me. Don't forget were running extremely good flowing cylinder heads, boss 302 heads so power gains from more air flow are rather significant.

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[markmurfie]

So the upper end dive is more from the TB. Is that what I'm seeing here?

 

[sandeale]

I'll know 100% if thats the case when I redyno, I'm going to install a bored TB and dyno then install headers and dyno again....it's getting costly to keep you fellers in the know...tax time balling right now..lol

That and probably finding flow limits of the stock cams...those are on my short list, probably comp stage 2s

 

[Quiksilver15]

Very interesting, I appreciate all of you innovators that are testing the waters for us daily driver guys that want a solution that we can bolt on in a wknd. Then proceed to work on Monday.

 

[steph93lx]

Gt350 TB tested 1 1/2 month before this test today with the stock t.b. on a dynojet.
Sorry but we need to be cautious with that result. Also on the first dyno test comparing the stock intake vs gt350 the result was that the gt350 was equal or stronger everywhere. That's really surprising. JDM show a decrease in power and torque in the mid and lower range exactly like it was expected with a high rpm intake swap.

I appreciate all the effort but we need more test sample from others before jumping too fast to conclusions.

 

[sandeale]

It can be 10 months down the road look at the weather conditions and all results are standard no sae.....no being defensive just informative....there was a 2 degree difference 58 for the gt350 60 for today and a 10% humidity change 30 for the gt350, 40 for today, and baro was within 200ft of each other 29.84 for the gt350 29.99 for today...all conditions were more favorable for the gt350 run

Also 2 different tuners with their own cam/ignition settings, auto vs manual, different dynos...alot of variation between my car and jdms

 

[steph93lx]

It can be 10 months down the road look at the weather conditions and all results are standard no sae.....no being defensive just informative....there was a 2 degree difference and a 10% humidity change and baro was within 200ft of each other 29.99 for the gt350 29.84 for today

Close to 30 lbs/ft rear wheel torque is crazy. Like I said even the intake result is very strange just look at JDM dyno.

I no you've done everything right. I don't doubt you and thank you for all the effort. I just don't jump in right now! I will try to do a test same day on a Mustang dyno but that will probably be stock intake vs gt350 intake and TB as I don't have the adapter.

 

[sandeale]

Ok, good luck on the self tuning, im considering picking up hptuners as well. And please share your results

 

[Conedodger]

Does anyone have a picture of the oem tb and the gt350 tb?
I think the gt350 tb has a 45 degree transition on the inlet side and the oem does not. Could it be that the stock tb has better laminate air flow because of the smoother bore?

 

[sandeale]

Its not quite as extreme as 45 degrees but the gt350 throttle body does make a weird downward transition in its bore whereas the oem is straight through

 

[mustang_guy]

The dyno results are interesting even though the weather differences. Ive been told twice now that the stock gt tb is good for deep in the 8s. By beefcake and steve at upr. MMR claims the gt350 tb supports 1800hp. Deep into the 8s is already 1500-1600hp on 3400-3800lbs if i recall correctly. Makes me wonder why the gt350 has it all. I wonder what the benefit is, maybe its more helpful on their significantly better heads. Dont mind me just throwing out thoughts.

 

[sandeale]

Ill have a more definitive test next week when i throw my bored stock tb on there...me and a tuner friend of mine got into a discussion regarding velocity and thought maybe the gt350 was just too large to keep the velocity up in a 5.0 config but on the 5.2 with the added airflow requirements it works fine so maybe the bored stocker might be the sweet spot for the coyote, ill do back to back pulls of the stock 80mm and the bored version

 

[craigsix]

Man I already have the ported stock TB so all I would need to buy is the GT350 manifold and the adapter from MMR

me too! got my adapter yesterday. got my tb p&p for 30bucks.

 

[craigsix]

Great result!

I really am starting to believe all we need is the:
350 intake manifold
air-raid tube
adapter
high flow panel filter

Might as well keep the stock throttle body and stock air box setup, it is clear all the gains are coming from the tune and intake manifolds.

i think my jlt will start to shine in the upper rpms compared to my drop in k&n and airraid mit setup with the gt350 im.

 

[Conedodger]

Its not quite as extreme as 45 degrees but the gt350 throttle body does make a weird downward transition in its bore whereas the oem is straight through

I would be willing to bet that if you were to deburr the inside of the stock tb and knock the sharp edge off at the transition from the opening to the bore, the stock tb would be fine.

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