Want more power

8thsin

New member
Ok I have finally gotten around to moding the typhoon, here is the list thus far:

ngks v
conrad cap and rotor
manual boost controller
160 stsat w/watter wetter
2 inch drop for rear
Detroit turbo tranny cooler
homade ic scoop
upgraded fuel pump
upgraeded ic pump, hotwired
chip of some sort
new gauges
atr wires
new o2 sensor
data master
deep tranny pan
ic hardpipe with hks ss
hard ic line replaced
K&N 8" filter that replaes airbox
It already has a aftermarket boost gauge
I think it has a ajustable fpr (not sure yet)

Now the question is if I install all of the above can I run 3inch exhaust with no muffler and no cat leaving the downpipe stock 2.5 Everyone says there that i will be overboosting with the stock turbo wastegate, but if I have a mbc cant i fix the problem and the spikes. I have no emissions and I build my own exhausts, which should i do straight 3 inch pipe , or cutout or staright with a turn down, How do theese trucks sound with exhaust, Which one will give me the most power and not rattle everything inside like my other vehicles running open exhaust

I want to get it ready for the track next weekend, and put down a good time before they close it.

Thanks
 

smeagol

Active member
Re: Want more power

8thsin said:
Now the question is if I install all of the above can I run 3inch exhaust with no muffler and no cat leaving the downpipe stock 2.5 Everyone says there that i will be overboosting with the stock turbo wastegate, but if I have a mbc cant i fix the problem and the spikes.

MBC won't fix the spikes. Spend the money on an external gate if you want to run a completely free flow exhaust.
 

BOOSTED92TY

New member
I got a question for ya...i see you have a 8 inch filter on your truck is that conected to the end of the crosover pipe? if so what did you do with the other line that ran midway into the airbox?
 

dgoodhue

BuSTeD 4.3
BOOSTED92TY said:
I got a question for ya...i see you have a 8 inch filter on your truck is that conected to the end of the crosover pipe? if so what did you do with the other line that ran midway into the airbox?

Put a K&N breather on the drivers side valve cover, the function the air box connection was to filter air being sucked in the motor by PCV system. Do not put put a breather on the passenger side valve cover, this will disable the PCV valve system, which would shorten the life of the motor.
 

dgoodhue

BuSTeD 4.3
Do you own or have access to a scan tool? Adding more mods will not do you any good if the engine has massive knock retard.

What type of chip does it have? It is important. Unfortunately some chips are detrimental to the life of the engine.
 

dgoodhue

BuSTeD 4.3
BOOSTED92TY said:
and just leave that tube open? or plug it in the kn filter on valve cover?? sorry for hijackin

Leaving it open with allow dirt to get suck into the engine and oil (the engine crankcase is under some vacuum from the PCV system) That is not a good idea. If you didn't want to run K&N beather, you could take the K&N and drill it for a port to run a hose connection to it, (like the stock air box had.) You would connect the hose to that port.
 

InvisiBill

Active member
Re: Want more power

8thsin said:
Ok I have finally gotten around to moding the typhoon, here is the list thus far:

ngks v
conrad cap and rotor
manual boost controller
160 stsat w/watter wetter
2 inch drop for rear
Detroit turbo tranny cooler
homade ic scoop
upgraded fuel pump
upgraeded ic pump, hotwired
chip of some sort
new gauges
atr wires
new o2 sensor
data master
deep tranny pan
ic hardpipe with hks ss
hard ic line replaced
K&N 8" filter that replaes airbox
It already has a aftermarket boost gauge
I think it has a ajustable fpr (not sure yet)

Now the question is if I install all of the above can I run 3inch exhaust with no muffler and no cat leaving the downpipe stock 2.5 Everyone says there that i will be overboosting with the stock turbo wastegate, but if I have a mbc cant i fix the problem and the spikes. I have no emissions and I build my own exhausts, which should i do straight 3 inch pipe , or cutout or staright with a turn down, How do theese trucks sound with exhaust, Which one will give me the most power and not rattle everything inside like my other vehicles running open exhaust

I want to get it ready for the track next weekend, and put down a good time before they close it.

Thanks

What BG said. While the stock chip's boost control code may not be the best, part of the problem is that the wastegate flows poorly. It simply doesn't flow enough to control a turbo with reduced/no backpressure. Some people have better luck than others, but statistically speaking, you'll most likely have boost control problems. You can either get an external wastegate, or upgrade to something like a PTE turbo with a better internal wastegate (in case you're thinking about going that route eventually).

The fastest "stock" Sy's are mid to low 12s with basically that same list. A Ty will be a little slower due to the extra weight, but with a good tune (as opposed to just throwing parts at it) that list should get you solidly into the 12s.

BOOSTED92TY said:
and just leave that tube open? or plug it in the kn filter on valve cover?? sorry for hijackin

The K&N breather filter either replaces the hose at the valve cover, or goes into the end of the hose (depending on which you prefer). Either way, the idea is to put some sort of filter there to replace the now-removed stock filter.
 

sygirl#1763

Donating Member
I am running the sy for over 3 years now with no cat and I havenend had any problems with, it and it sounds like a V8, and my exhaust is on the passangers side of the truck and it sounds awesome.


Andre
 
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