Im looking into doing a b18b turbo. my thing is that i want as much torque out of it as possible. When talking to a tech for subaru about the wrc wrx he says it makes 300hp and about 600ft/lbs tq. seems pretty outrageous for a 2.0L turbo car. I asked him how they do it, and his only answer was that they tune specifically for torque and alot of time tuning. Im thinking they use a pretty small turbo at high boost for responsiveness and just know how to lay fuel maps to make torque. has anyone here looked into or is tuning hondas for torque numbers instead of HP? any suggestions on how to make big torque on a turbo 1.8L? any special turbo application you think will work best? what about tuning method? thanx for all your help.

 

are you sure you want that?

it's going to be harder to use that power with fwd (gobs of torque vs smooth power)

but to start you want the biggest motor you can squeeze in there.

built, stroked h23 anyone?

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Sketch_hs &raquo;</TD></TR><TR><TD CLASS="quote">are you sure you want that?
built, stroked h23 anyone?</TD></TR></TABLE>

forget a mere 1.8....use a f22/vtec hybrid...pretty cheap to build...huge stroke and iron sleeves that loooooove boost...it end ups being about a 2.3l w/ a bigger stroke than a h22...

a motor is gonna make what it wants...and so you know HP is derived from torque...obviously everyone wants to make the most power/torque so regardless you tune it one way...to make power...

 

Im not saying I want 600ft/lbs but im just saying i want torque more than i want HP I guess. I want to keep it a B18b. just wondering if anyone knows what will be best for that setup. Im looking about 300hp with matching or a little more on the torque end.

 

I had a turbo GSR Motor, pretty stock, log mani, 2.5 downpipe. I made about 181tq to the wheels.

When I decided to do a build up, I changed to a LS crank, Full race mani, 3 inch exhaust and went with 2.25 intercooler piping instead of 2.5. Also switched the exhaust housing of the turbo from .63 AR to .48. Also had it retuned by Mase.

I picked up over 100lbs of tq to the wheels making these changes at same boost level.

Now I have 311whp and 295 tq to the wheels @ 10psi!!

 

The reason they make power like that is because they don't rev high. They are required to run restrictors and airflow is very limited. At low rpm it takes less airflow since there's less engine cycles happening, so they set everything up to work at low rpm, which makes alot of torque. They run out of breath at high rpm which is why the hp is very low.

 

How do you plan on putting all the TQ to the ground?

 

tony1 is right! i dont think that you no what torque/hp is! you want more low-end or a wider powerband or more top-end but you don't want more torque without making more horses!

 

well obviously i want torque and hp i just want to tune for higher torque in comparison to most people that just tune for a high end hp number that isnt as usable. i dont want to have to rev to 10,000rpm to make the same power i can make at 6,000 with a better hp/tq curve that is more usable.

 

well dont forget that you make torque in your gears. if you make 300wtq and shift at 6 you'll need an ls tranny to gear out, but you'll make less wtq with a longer gears. Dyno numbers = 4th gear. Wtq variation through the gears changes w/ different trannies, and a tranny has to be selected with regard to your redline. So your high torque short revving honda motor will probably end up with similar applied torque to a high revving 'low torque' car.

how much base tq do f1 motors make? It doesn't matter because they make gobs of 'applied' tq.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by mike1114 &raquo;</TD></TR><TR><TD CLASS="quote">I had a turbo GSR Motor, pretty stock, log mani, 2.5 downpipe. I made about 181tq to the wheels.

When I decided to do a build up, I changed to a LS crank, Full race mani, 3 inch exhaust and went with 2.25 intercooler piping instead of 2.5. Also switched the exhaust housing of the turbo from .63 AR to .48. Also had it retuned by Mase.

I picked up over 100lbs of tq to the wheels making these changes at same boost level.

Now I have 311whp and 295 tq to the wheels @ 10psi!!</TD></TR></TABLE>

Do you have your dyno sheet? You use t3/t04e? what trim?