Topgunz - air to air upgrade

milkcow500 · 03-23-2018, 03:00 PM

Quote:

Originally Posted by Jayhovah

the description says he was tuned at 'The Boost Creep' which is in Longmont, CO at an elevation of 5000'. Solved.

Ouch.

Sent from my Pixel 2 XL using Tapatalk

cupcakez · 03-23-2018, 03:33 PM

Quote:

Originally Posted by jayhovah

the description says he was tuned at 'the boost creep' which is in longmont, co at an elevation of 5000'. Solved.

dayum!

also. @Redondo:
Do you also have 1050x++ injectors?
And what is the difference between SC and SCi head units if I can ask?

redondoaveb · 03-23-2018, 03:44 PM

Quote:

Originally Posted by cupcakez

dayum!

also. @Redondo:
Do you also have 1050x++ injectors?
And what is the difference between SC and SCi head units if I can ask?

Yep, 1050x injectors. The Sci has a lower cfm rating. The new kit that Topgunz will be selling comes with the Si supercharger. When I bought mine from Stillen I paid a little extra for the Si unit.

cupcakez · 03-23-2018, 03:52 PM

Quote:

Originally Posted by redondoaveb

Yep, 1050x injectors. The Sci has a lower cfm rating. The new kit that Topgunz will be selling comes with the Si supercharger. When I bought mine from Stillen I paid a little extra for the Si unit.

Darn, if I knew that I would have done the same as you and pay a bit more for the Si unit

Seeing as I purchased the A2A kit which works with the SCi trim I have, I'm pretty stuck with the SCi trim so I will most likely send it to 928 sometime next year or toward the end of this year, to get the super vortech upgrade.

Live and learn

625 - 650 whp should be plenty enough before I crave more power after that anyway xD

redondoaveb · 03-23-2018, 03:57 PM

Quote:

Originally Posted by cupcakez

Darn, if I knew that I would have done the same as you and pay a bit more for the Si unit

Seeing as I purchased the A2A kit which works with the SCi trim I have, I'm pretty stuck with the SCi trim so I will most likely send it to 928 sometime next year or toward the end of this year, to get the super vortech upgrade.

Live and learn

625 - 650 whp should be plenty enough before I crave more power after that anyway xD

The super vortech mod is a better set up than the Si trim, you can push the sc further with that upgrade.

bcfromfl · 03-23-2018, 04:52 PM

You guys are so smart!

I'm so glad I found this board!

P.S. Glad I'm at sea level!

cupcakez · 03-23-2018, 07:26 PM

Does it also include the ceramic bearings upgrade as well or just impeller if true at all?

redondoaveb · 03-23-2018, 07:49 PM

Quote:

Originally Posted by cupcakez

Does it also include the ceramic bearings upgrade as well or just impeller if true at all?

No, it definitely doesn't include the ceramic bearings.

cupcakez · 03-23-2018, 08:01 PM

Oh, haha ok thank you for the information!

redondoaveb · 03-23-2018, 08:06 PM

Quote:

Originally Posted by cupcakez

Oh, haha ok thank you for the information!

When I change out my supercharger pulley to either the 2.85 or 3.00", I'm going to keep the stock bearings, we'll see how long they last.

cupcakez · 03-23-2018, 10:22 PM

Quote:

Originally Posted by redondoaveb

When I change out my supercharger pulley to either the 2.85 or 3.00", I'm going to keep the stock bearings, we'll see how long they last.

You already have 9psi pulley on serp side and a 3.47 pulley yeah?
If so, all you need is the 3 inch one since the 2.85 will overspin it xD

redondoaveb · 03-24-2018, 12:23 AM

Quote:

Originally Posted by cupcakez

You already have 9psi pulley on serp side and a 3.47 pulley yeah?
If so, all you need is the 3 inch one since the 2.85 will overspin it xD

I replaced the stock 8psi pulley with the 9psi on the serpentine side. I haven't replaced any others.

TopgunZ · 03-24-2018, 09:15 AM

Quote:

Originally Posted by cupcakez

You already have 9psi pulley on serp side and a 3.47 pulley yeah?
If so, all you need is the 3 inch one since the 2.85 will overspin it xD

Technically just the 9psi pulley alone slightly overspins the head unit unless you upgrade bearings.

cupcakez · 03-24-2018, 09:19 AM

Quote:

Originally Posted by TopgunZ

Technically just the 9psi pulley alone slightly overspins the head unit unless you upgrade bearings.

Gotcha. Didn't know that.
Ugh. Gotta wait til next year before I upgrade that

turtle64b · 03-24-2018, 07:05 PM

Would you guys mind sending me some of your data snippets that you send off to be used for tuning? I have an anomaly where one MAF (bank 1) is reading almost a volt lower than the other at times and I wanted to see if anyone else's car was doing the same. Thanks!

I'm at turtle64b@aol.com

EDIT: To follow up on this, it seems that there is not equal flow through the intake Y-pipe.

Swapping MAFs gave the same anomaly on bank 1, swapping the connection moved the anomaly to bank 2, and swapping the MAF while still connected to the same harness also moved the anomaly to the other bank. This means that at idle and light-medium acceleration, air flow through the two branches of intake Y, in my case, are significantly different. Since the Y pipe meets again in the manifold and the air mixes, the bank associated with the MAF that has the anomaly is getting much more air than sensed by its associated MAF and the other bank is getting less. This would explain my lean condition as well as the sometimes very rich condition that happens at idle.

Is anyone else experiencing this? If you look at your datalogs, it looks like one MAF reading out much lower than the other one. This can be dangerous for the engine as one bank will run rich and the other bank will run lean, potentially dangerously.

03-24-2018, 07:05 PM	#15 (permalink)
turtle64b Track Member Join Date: Jun 2015 Location: Granbury, TX Posts: 550 Drives: '11 SC Blue 7AT Rep Power: 3366	MAF Issue Would you guys mind sending me some of your data snippets that you send off to be used for tuning? I have an anomaly where one MAF (bank 1) is reading almost a volt lower than the other at times and I wanted to see if anyone else's car was doing the same. Thanks! I'm at turtle64b@aol.com EDIT: To follow up on this, it seems that there is not equal flow through the intake Y-pipe. Swapping MAFs gave the same anomaly on bank 1, swapping the connection moved the anomaly to bank 2, and swapping the MAF while still connected to the same harness also moved the anomaly to the other bank. This means that at idle and light-medium acceleration, air flow through the two branches of intake Y, in my case, are significantly different. Since the Y pipe meets again in the manifold and the air mixes, the bank associated with the MAF that has the anomaly is getting much more air than sensed by its associated MAF and the other bank is getting less. This would explain my lean condition as well as the sometimes very rich condition that happens at idle. Is anyone else experiencing this? If you look at your datalogs, it looks like one MAF reading out much lower than the other one. This can be dangerous for the engine as one bank will run rich and the other bank will run lean, potentially dangerously. Last edited by turtle64b; 03-25-2018 at 10:56 AM. Reason: Update on the problem

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03-23-2018, 04:52 PM	#6 (permalink)
bcfromfl Enthusiast Member Join Date: Nov 2016 Location: Youngstown, FL Posts: 256 Drives: 2015 PW Nismo 6MT Rep Power: 9	You guys are so smart! I'm so glad I found this board! P.S. Glad I'm at sea level!

03-23-2018, 07:26 PM	#7 (permalink)
cupcakez Track Member Join Date: Oct 2017 Location: California Posts: 635 Drives: 2009-7AT-Base-Coup Rep Power: 4836	Does it also include the ceramic bearings upgrade as well or just impeller if true at all?

03-23-2018, 08:01 PM	#9 (permalink)
cupcakez Track Member Join Date: Oct 2017 Location: California Posts: 635 Drives: 2009-7AT-Base-Coup Rep Power: 4836	Oh, haha ok thank you for the information!