I see that alot of trucks on this forum are running twins. Are there any downfalls to this setup? Is longevity an issue? Cost? Install concerns? Thanks for the help.

 

The cost is higher then a single, but thats it. I love my TWINS, even with everything turned off it still runs like a stock truck. But the EGTs are so much lower then any single out there

CRIS

 

Changing the oil filter is tougher.

 

Sorry, thats true. I forgot about that

CRIS

 

It ain't nothing that a remote bypass kit couldn't take care of though and for twins I'd do it.

 

No kiding!!! Can someone direct me to a complete remote kit?? I love mine though, they really kick but!

 

acook, check out the fs2500, not only can it be remote, but it also is supposed to clean the oil alot better than the stock filters

Kevin

 

I have no problems changing my oil filter without having to remove pipes etc.

However, a remote kit does sound pretty good!

I would have been $$ ahead buying the twins first rather than going the HTB2 62/12 -> HTB2 62/14 -> SPS66 -> SPS 62 -> BD twins route.

 

They do cost you a couple hp to drive them...but you save a melt down at a certain point.

 

For the couple of hp they cost to drive, they sure do make up for it with the extra HP they give ya.

 

I am not a "single" or a "twins" fan...I like what works!

But...there are advantages and disadvantages to both.

If you take a truck...and push x amount of fuel through it...lets say 500 hp with a large single...SPS 66 or Aurora 5000 or Silver Bullet.

Then switch to twins...and do not change the fueling...you will make less hp...period. Turbos do not make hp...period.

There is a point where temps become a concern with a single...and a nice set of twins can overcome that. There is a point where drivability is an issue with a large single...and twins can overcome that. Etc Etc Etc.

But...twins do not "make" more hp than a single. Fact.

That being siad...I really can't wait for the other turbo to go with my 5000. I am about done waiting.

 

Point taken. What I meant to say is that usually twins add power because your able to burn the fuel that you already had in the engine thus giving you more power. I'm still not a believer that a large single can as efficiently burn the same amount of fuel that a good set of twins can. But that's just my opinion.

 

Twins do normally add low end tq, especially over a laggy single. THAT is why I (will) have them, they pull hard from bottom to top, instead of going like mad from 2K RPM on up!

Not knocking the bigger singles, but they aren't for me and the way I use my trucks...it's a personal preference thing!

Chris

 

I agree with you...

I was touching on the comment about peak hp...and a single designed for the needed airflow will produce more peak hp than a set of twins...PERIOD.

Our engines operated over varying speeds...so that is where the advantages of twins show!

I am not knocking twins...or singles. I am simply explaining that there are more "losses" in the equation with twins than with singles. Dig up a few mechanics and physics/therodynamics books, go to school, get your engineering degree, and you will understand.

 

I will agree that a big single will make the biggest HP, or at least so far...but they needed help to do it (nitrous)

But Maddog's twins are hangin' with them, and on #2 still

Not arguing with you cquestad, but am bringing up another part of the argument! So far, all the big single users are using nitrous to make big power!

Chris