I have been tossing back and fourth between installing a Turbonetics kit and Greddy twin turbo kit. I am having a hard time making up my mind between twin turbo and or single. How hard is it to install a Greddy Twin turbo kit? Would I have to pull the engine out of my car? One of these kits will be going on a completely stock 2005 Z with Rev-up motor.

 

Both should be able to be installed with the engine in. As to which is more difficult I would suspect the greddy

 

thats a good question but from the research i have done , either way you need to rip half the engine out to install one turbo doing two turbos should not be hard; its that know you have a little more heat in the engine bay and a 2nd turbo you have to worry about failing down the road. i have a friend with a 3000GT VR4 fixed one turbo that failed a month later car had to get the 2nd turbo replaced. it also depends on how much power your looking for. if you want some serious power i would get the twin turbo because with that you can have alot less working on the turbo but yet make the same amount of HP that the single turbo at high level of boost. you might also want to think about supercharger with that it wont make as much heat as the twin turbo and no turbo lag. oh and dont belive anyone that says that have no turbo lag, no matter how good a setup is there is always that 1sec lag i hope this made you think about a few other things

 

TN kit is 10x's more easier to install, you don't even have to remove the manifolds! I'd pull the motor to install greddy's since some of the bolts are hard as hell to get to with the motor in. If you want more than 450whp, go TT. You'll regret it later when you want more power and have to spend so much to get there by getting a single.....

 

I actually like the turbo lag becasue I then know when its working. i am not looking for huge power, just an extra 125 HP. I am not going to mod the exhaust and plenum and what nots. I just want a bolt-in turbo and call it good. I do want to maintain a certain amount of reliability an minimize the added strain on the engine.

 

Many many people have said now installing the Greddy is only easy if the motor comes out... Turbonetics kits can be done on jackstands..

 

I am not pulling my motor out of my car so I guess I will be ording the Turbonetics. I see the Rev-up version has been finally released for the 2005. I am just not equipped to do that and I don't want to pay $1500 or more to have it installed. Well, that was an easy decision. Thanks.

 

I installed my Greddy kit on jackstands while customer cars were on the lifts. No problems at all.

 

I did my TN install, and now have a Greddy set-up. On stock block no huge difference, more midrange TQ for TN, less TQ drop-off for Greddy. If you were to blow your motor and build-Id do the Greddy, you need to think ahead, the TN + built motor combo for now anyways is weak sauce. Good luck.

 

Hey Alberto, do you have any trick to pass emission in Maryland?

 

Lag? someone said Lag?

 

I passed NA with test-pipes in place. OBDII scans are all that they look at. No CEL = PASS....

 

^^ damn. alberto. i just finished watching a couple of your vids. arent u scared driving like that? what tires do u have on? i mean with my stock bridgestones, i went ~ 135, but after i got some rims, and falken 451, i dont even wanna go past 80-90.. oh yeah ive been in 2 accidents too, with frame damage. my car just feels scarier to drive now..

 

Even if you blow the stock motor I see nothing wrong with going for a built motor with a TN kit. At least you'll have something stout to handle power for a long time to come. I'm to into the high HP power game. That's just my preference. You also wouldn't have to worry about traction problems as bad. But these are just little problems to help make your decision.

 

I run BFG KDW2's for now. The speed doesnt scare me as long as Im hooking up, spinning in 3rd or 4th is scary sometimes I hit the speed limiter on stock RE040's felt good to me, you know whatthey say about frame damage and the car never being the same again...

 

Go look at a dyno graph and tell me that, if you say it looks good, you dont know what your looking at. Why would somebody invest $$$ into building a motor if the powerband will be weaksauce, saying its (TN) a better option because you wont have traction issues is BS as well, the midrange TQ is nasty and in many cases close to or exceeding 500ft/lbs....Id invest $1000 more now and save the possible hassle of selling the kit and buying a TT kit later.

 

^^^
I have to agree with Alberto on this one and that is besides that fact that if the OP doesn't know that Alberto is speaking from experience since that is exactly what he did.

Started out with TN, blew motor, got motor built, sold TN and got Greddy.

 

Greddy is much easier with engine out. TN does not require engine removal, and engine removal doesnt make it any easier.

For mild boost, the TN is fine, but if you have plans for lots of power later, than spring for a nicely setup Greddy TT kit.

 

125 hp if thats what your looking for i would go with a single turbo run it at 8-10psi should be good. there will be a few things you might need to upgrade a few other things when you do that you kind of have no choice because if you restrict the breathing of the engine and run it with that power gain you might end up damaging something else remember more heat will be made so you need to cool it down might need to get a oil cooler also need a cold air intake and the exhaust will help you breath little easier. the last thing you want to do is burn out your cats. my boy did that on his talon TSI running psi

 

WTF? First off not everybody needs an oil cooler, I ran my car back to back to back (18 runs throughout the day) at a dragstrip in 90 degree weather and didnt see crazy temps or heat soak with no aftermarket oil cooler/radiator with my TN kit. Also, you obvioulsy have no clue what your talking about telling people they need cold air intakes with forced induction Also, please show me 1 person who has "damaged" anything running consevative boost with a stock exhaust system/cats? The TN kit air filter sits behind the front bumper, Greddy sits underhood, no issues with either one. Please do some more research before you go posting false info. Oh and from your earlier post regarding recommending a S/C over a turbo because of no lag-you go ahead and pick any S/C for the Z on the market vs a TN kit and you would get stomped given the same boost levels-your "no lag" wont save you there-thats just a silly, uneducated POV. BTW-you been in a turbo Z? Even with my TN kit I didnt have 1 full second of lag.