trying to put togther a twin turbo setup...
#33
#35
#36
Rear mounted turbo setup for 2002 5.4
I recently purchased a kit that came off of a truck just like mine. It is a shop built kit that they ran on this truck for quite a while and, according to them, put out 476 hp to the rear wheels. The turbo is a borg warner, T5, if I remember correctly, and does have the oil pump and intercooler with it. My big concern is that I have 137,000 miles on the truck and am not quite ready to blow the s*** out of it.
What do you think I should do?
What do you think I should do?
#37
when I put a turbo on this truck I know I am going to need a new fuel pump, how strong of a fuel pump am I going to need for this project and how strong of injectors (I was thinking about 42# injectors), also what do y'all think about the magnaflow flow through exhaust and an xpipe
#38
I dunno too much about the exhaust half of the pluming just yet it is more of asking what I can and cant do but I am going to go and buy some of that tubing that you use for a cloths dryer and make a mock turbo set up so that I can see in a more hands on way what I am dealing with as far as pluming
#39
I recently purchased a kit that came off of a truck just like mine. It is a shop built kit that they ran on this truck for quite a while and, according to them, put out 476 hp to the rear wheels. The turbo is a borg warner, T5, if I remember correctly, and does have the oil pump and intercooler with it. My big concern is that I have 137,000 miles on the truck and am not quite ready to blow the s*** out of it.
What do you think I should do?
What do you think I should do?
do a compression test, leak test, if those check out OK back the boost down, get a good tune, and back up your transmission with a seperator plate or valve body at the minimum
#40
I dunno too much about the exhaust half of the pluming just yet it is more of asking what I can and cant do but I am going to go and buy some of that tubing that you use for a cloths dryer and make a mock turbo set up so that I can see in a more hands on way what I am dealing with as far as pluming
#41
I dunno too much about the exhaust half of the pluming just yet it is more of asking what I can and cant do but I am going to go and buy some of that tubing that you use for a cloths dryer and make a mock turbo set up so that I can see in a more hands on way what I am dealing with as far as pluming
#42
#43
Twin turbos (setup in parallel, or one one each manifold) will produce more cfm of airflow with the same amount of boost pressaure (psi). If they both put out 5 psi and a maximum of 300cfm each, then having them in a true twin setup like this will produce 600cfm while the entire setup stuill puts out 5psi. It's a good way to keep boost pressaures lower and keep high cfms. Believe it or not, psi is NOT the direct reason for power gains. It's the flow or cfm that makes the difference. PSI does factor in importantly, but it's not how much preasure you can stuff in there, it's how air you can stuff in there. Sounds tricky, but cfm is your key. Twin turbos simply keeps things in a lower psi level which is ultimately safer as well.
In the piggy-back setup (one small one pushing a larger one), you'll get the benefit of having some decent boost down low and having the larger turbo maintain a higher rpm boost level as well. And the lag is nothing to speak of really. It all depends on your setup and how well matched your components are.
I owned an 89 Probe GT (don't diss it, they are no joke) and it had a small turbo made by IHI. The motor was only 2.2 liter, but it had practically zero lag. It was small though and spooled way too fast. Extremely effective on the street (if I could get traction) because there was instant response. A larger turbo would have produced some lag, but unless I didn't know what I was doing, it wouldn't have been that noticable anyway.
On these trucks (mine is a 5.0) the turbo can be theoretically twice the size as the one on the Probe and still feel instantaneous upon boosting. Again, this is because there are twice the amount of cylinders here pushing out twice the amout of exhaust.
My recommendation for a turbo on these is a single medium or large turbo coming off of a Y-pipe from the manifolds. This would spool it up quick enough for street use and would maintain enough back preasure for a minimal muffler or none at all. Turbos do change the exhaust note some. They tend to mellow out and deepen them on large 4-bangers like the Probe had, v6's and v8's.
BTW, this is my first post. Hope it helped someone.