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Dropped My car off

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2006YellowGT

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Discussion starter · #1 · (Edited)
Well as the title says I dropped my car off at Amazon Tuning today to get a Hellion turbo kit installed.

It is upgraded from the 62mm to the 76mm and comes with gt500 fuel pumps. Rick said I should expect about 450 rwhp from the kit. I will post pictures as soon as I get it back from the shop.

Do you guys think I will see much lag since the turbo is upgraded from the 62 to the 76?
 
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Discussion starter · #3 ·
I thought gears would hurt it since the gears will make my rmps rise faster which in turn shifts faster giving the turbo less time to spool up.
 
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Discussion starter · #5 ·
Yeah sorry should have made that clear.
 
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Discussion starter · #8 ·
Oh yeah I forgot to mention it comes with the race y pipe which is bigger then the standard y that comes with the kit. So, would that mean the exhaust would flow more easily?
 
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#10 ·
wait, is this a rear mounted turbo?
 
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Discussion starter · #11 ·
No it goes in front of the motor.
 
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#12 ·
in front of the motor? if it is attached to a Y pipe, that means it will be behind the motor.....
 
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Discussion starter · #13 · (Edited)
No, it is in front and has a y pipe. I am pretty sure, because there was an issue with the y pipe hitting the ground on lowered cars.
 
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#14 ·
From the Y-pipe it runs back up to the turbo.

Here's some food for thought though. You have to find the optimum size for the exhuast flow. Too big of a pipe and too much of an easy flowing exhuast may make it harder for the turbo to spool up. This thought is based on fluid dynamics. Exhuast gases act a lot like liquid in theory. The same amount of gas passing through a smaller pipe will have a greater velocity and more force behind it. But if you go small it will hinder the engines perfomance. It is a balancing act to get it to the optimum level where you get the best velocity with the least hinderence to the motor.

Generally with a larger turbo, yes it will take longer to spool up, but the benefit is more air being pushed through when it does. Like everything in life, you have to give a little to get a little. Bigger is not always better. It is a balancng act to optimize your set up for the best performance and what you want it to do. Like any other mod, if you go to big it might not help.
 
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#15 ·
you will notice the lag with that 76, but you will still have a **** eating grin on your face. You really wont "notice" it unless you go ride in a car with a 60 or 62mm on it.


*waits for steve to jump in
 
Discussion starter · #17 ·
you will still have a **** eating grin on your face
Click to expand...

That is what I am hoping for.
 
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#18 ·
I have heard the hellion kits are good for the power potentional, only bad thing I have heard about those kits are ground clearance on a lowered car as you stated. I honestly debated getting a hellion kit from brenspeed at one time. I think you will enjoy it.
 
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#19 · (Edited)
We went from 67 to 76mm. Definitely noticed a response difference for street use between the two. The 67 being more responsive. At the track there is no lag if setup correctly (transbrake, 2 step etc).

As far as the 450 rwhp expected, the 67 was good for about 650 rear wheel and we got up to 27 lbs of boost with the 76mm (usually stay at 22 lbs), so there are way more horses available with the 76mm.

Not sure why Hellion would put you in a 76mm, unless you plan on using all those ponies down the road. Powerhouse was actually not that keen on us upgrading to a 76, until we fully discussed plans and goals. Size matters with turbos and bigger is not necessarily better.

Anyway...turbo lag was designed to allow supercharged vehicles to catch up...lol
 
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#20 · (Edited)
This link will tell you alot about turbo sizing and such. I wish I had seen this thread sooner, but I've been staying away a little more these days since the moderators started using tactics to force us to the other areas of this forum...it's probably just a matter of time before this thread gets moved to the forced induction section and dies...rather than have to search all over the place for info regarding s197's ...I simply go elsewhere and try to help where ist's more convenient. This link should give you some helpful insight about turbo sizing anyway.... For whatever it's worth, I run a 60mm dual ballbearing turbo.

Ford Mustang Turbo Size Guide - Muscle Mustangs & Fast Fords Magazine

This site has a plethora of information regarding turbos as well...
The Turbo Forums.com

The Modular Forum
 
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