single vs twins please help im not trying to start a flame war

[mplv]

Im new to the board and have a previous thread titled "help me spend my money" and im looking at turbo systems and i need some help. There are several options and im just not sure what to go with, cheeta, the 4094vvt, mpi big twins? someone help. i rarely tow and when i do its 5k lbs but i drive the piss out of everything. I dont want to open the motor or do injectors yet and i wont be installing anything myself.

thanks for the help please dont start ww3

 

[Builtlngbd]

i would go with the mpi twins. You dont have to open the motor up Or put injectors or anything. and they tow Great! i have the basic kit that still uses the factory charger and am in the 11's. With all the mods in my sig. i will be going to the big twins later on to reach 10's. All in all these twins have held up great and trust me i drive things in the ground.

 

[Randy5.0]

Im building a 09 truck with a medium sized lift(7") and I want to go fast, keep my reliability and stock like driveability. I dont tow much, my boat is 5k lbs and thats about it.

I already put a 5" turbo back, EFI live from nick and a airdog 2 lift pump either on the truck or sitting in the backseat waiting install.

Im thinking of doing twins. I dont know why ive sub consciously chosen twins but I have yet I have no real clue about them. Im not the get it done no matter the cost guy but i appreciate quality and value and dont mind paying for it, i wont be doing any installs myself and currently dont know who will be but im in the begining stages of the planning process anyway. (im in NW georgia at the moment)

I know need a tranny and possible injectors also so if you guys could share some input I would GREATLY appreciate it. I guess what im trying to do is build a blueprint for my build and figure out how the truck will perform once build with a very close ballpark price guess as to what it will cost to not only buy the main components but all the supporting stuff as well and an approximate install time or cost.

I still think MPI twins are the best bet for what you want. You won't have to open the motor. You don't have to install injector tips unless you want to. With a single cp3 they are super reliable and they absolutely drive like a stock truck. It will be very fast and tow your boat or anything else with very low egt's. For the street, they are hard to beat, and pretty hard to beat at the track too.:thumb:

 

[Bako_Dmax]

Werent your questions already answered in your previous thread?

 

[mplv]

no a bunch of people suggested twins and some said a single and then it turned into a shit flinging fest.

no where can i find any reason to twin other than lower egts so im a little lost, i dont mind spending the extra money but if the performance is no better then i need a more valid reason than a little lower egts.

is the truck going to get to 60 faster, 60-100 faster, better mpg, sound cooler, i just need some selling points other than lower egt.

 

[TrentNell]

no a bunch of people suggested twins and some said a single and then it turned into a shit flinging fest.

no where can i find any reason to twin other than lower egts so im a little lost, i dont mind spending the extra money but if the performance is no better then i need a more valid reason than a little lower egts.

is the truck going to get to 60 faster, 60-100 faster, better mpg, sound cooler, i just need some selling points other than lower egt.

it takes a gt42 or larger to get you the same performace as twins............... on a single cp3........... and a turbo that large is not going to be very fun to drive untill it gets spooled up , and as far as torque goes twins are the clear winner , which equals a lot of fun factor in driving . twins have also ran the fastest times in the 1/4 on single cp3's . after owning a twinned truck i will never go back to a single turbo , all it takes is one ride in a twinned truck and people are hooked best of luck with your descision .

Edit : twins will also spool faster than any single turbo will ever buy far , including the stock one , taht is one of my favorite things about driving my truck after i put the twins on , and mine were even the "big" set .

 

[mplv]

THANK YOU! twins it is, i just needed a clearer explanation and thats what i was looking for.

 

[TrentNell]

THANK YOU! twins it is, i just needed a clearer explanation and thats what i was looking for.

here is a very good explanation of what i am talking about , it is clear as day in a dyno graph , that flat torque curve means very worn out tires :rofl: this is m very first dyno on my twins so not much dialed in tuning wise .

 

[mplv]

well its a good thing im running 37x24 toyos because they are real real cheap

 

[ChevyDieselLLY]

one thing you could always do is buy the htt 66mm to start with, than twin it later. that way you arent spending all the money at once, and you can see the difference when going from a good size turbo to a twin set up. by no means am i saying a 66mm is a big single but it is a turbo that can get you into the 11's from what recall reading. than you add the twins and watch the egt drop, tq go up, and speed go up. but driveablity stay the same.

 

[LBZ]

one thing you could always do is buy the htt 66mm to start with, than twin it later. that way you arent spending all the money at once, and you can see the difference when going from a good size turbo to a twin set up. by no means am i saying a 66mm is a big single but it is a turbo that can get you into the 11's from what recall reading. than you add the twins and watch the egt drop, tq go up, and speed go up. but driveablity stay the same.

This is a very cost effective way to go. And alot less work. As long as you are ok with losing the VNT turbo.

 

[mplv]

why wouldnt i do a cheeta then twin it later with that logic?

 

[KEVINL]

why wouldnt i do a cheeta then twin it later with that logic?

that is going to be an expensive route to go depending what size cheetah you went with

from what I have read the VNT exhaust side becomes a restriction at high hp levels

 

[sweetdiesel]

after owning a twinned truck i will never go back to a single turbo , all it takes is one ride in a twinned truck and people are hooked best of luck with your descision .
.

Question do i get to drive or just ride shotgun?


Ive been on these sites for years and never once heard anyone complain about twins, If you can afford them then do it!

 

[TrentNell]

Question do i get to drive or just ride shotgun?


Ive been on these sites for years and never once heard anyone complain about twins, If you can afford them then do it!

I'll toss you the keys Simon

 

[othrgrl]

why wouldnt i do a cheeta then twin it later with that logic?

A cheatah costs about the same as an HTT does and won't put out as much power. The HTT will be just as streetable and able to tow, and when you twin it the turbine side won't be near as much of a restriction as the cheatah. HTT's stainless housing has the biggest internal wastegate ports you will find in a medium sized charger - which is what makes it so great for twins, the cheatah doesn't have any and any with the VNT vane's wide open won't flow enough air for a twin setup - you would have to add an external wastegate tapped into the up-pipes or turbine housing, putting you way over the cost of an HTT.

 

[McRat]

I have said, and continue to say, that twins are good choice.

And I also say they are not the best solution for all applications, which defies modern marketing thought.

With the first gen HTT66 or PPE 4088, I ran 11's, and it did not hurt the engine at ~650rwhp. No towing problems, good throttle response, fairly easy install, and low cost. This is about the highest amount of HP that is truly useful for street apps, and the upper limit of what is considered safe.

The most important thing is to have clearly defined goals before you start. That will determine which turbocharging system is right for you.

I never tested MPI twins simply because they were never available for me to purchase, so I cannot vouch for them. I had to wait for PPE to come out with a system. My PPE race system is for the lunatic fringe. Powerband is 2800-4800, and even at low boost levels makes over 900rwhp. Completely streetable, but way more HP than you can use for a street app.

As far as comments of "there are no unhappy twin customers", that is not accurate. There have been a number of trucks go from twins to singles. But I have never seen a public posting indicating why, which is why the internet perception is that twins are perfect for all trucks, for all apps. And when a customer tells me his reason, that is confidential info.

For me? I run both ways. But what I really want is a supercharged/turbo system. I have a feeling that's going to be a better solution than available systems.

 

[jrad12381]

You will love the twins for the way your truck is set up. I am very happy I went with the twins. For trucks that are lifted it gives you great driveability, and almost no turbo lag. Fuel mileage dropped about 1.5mpg though.

 

[770JOHNNYW]

There you go matt!!!:thumb:

 

[KEVINL]

I have said, and continue to say, that twins are good choice.

And I also say they are not the best solution for all applications, which defies modern marketing thought.

With the first gen HTT66 or PPE 4088, I ran 11's, and it did not hurt the engine at ~650rwhp. No towing problems, good throttle response, fairly easy install, and low cost. This is about the highest amount of HP that is truly useful for street apps, and the upper limit of what is considered safe.

The most important thing is to have clearly defined goals before you start. That will determine which turbocharging system is right for you.

I never tested MPI twins simply because they were never available for me to purchase, so I cannot vouch for them. I had to wait for PPE to come out with a system. My PPE race system is for the lunatic fringe. Powerband is 2800-4800, and even at low boost levels makes over 900rwhp. Completely streetable, but way more HP than you can use for a street app.

As far as comments of "there are no unhappy twin customers", that is not accurate. There have been a number of trucks go from twins to singles. But I have never seen a public posting indicating why, which is why the internet perception is that twins are perfect for all trucks, for all apps. And when a customer tells me his reason, that is confidential info.

For me? I run both ways. But what I really want is a supercharged/turbo system. I have a feeling that's going to be a better solution than available systems.

Thats very useful info pat I think a HTT is what I need twins would be awesome but I don't need more than 600-650Hp the low Egt's are cool but I don't tow and have not melted anything I was happy with the power the 4094 had but didn't care for the lag