groundedcivic91

are all t3 the same as far as bolt ups regardless of what car it came off of.

as well are they all the same specs the .42/.48 that is regardless of vehicle they came on?

projekteg

one of the t3's has a fucked up four bolt flange pattern, but as long as you see a pic of it before you buy it, you will see, it's not a perfect rectangle like reg t3 flanges, it has one bolt hole that is out of whack, other than that, yeah, all t3's have the same 4 bolt flange and there are a couple different styles of dp flanges for them too, but the most common is the 5 bolt (although there's two different 5 bolt patterns, one is more common than the other). a .42/.48 will be a good choice for you, especially with hondata, fuel pump, etc., you'll be able to run 10 psi safely all day as long as you have your hondata tuned. now that i confused the hell out of you, good luck

crx304

the ugly duckling y6ou are referring to are from daytonas and lebarons (tbo335)... AR is 42/48 on them... same as reg t-3's

mike

Reddy

Don't be scared of 10 pounds of boost. Treat your motor like your bitch, your gonna give it 10 pounds and its going to take 10 pounds and its gonna like it. This is my philosophy and its been working for years.

evosol

yeah like whitey said... i treat my bitches like whitey's engine, douple penatration.... ive been doing it for years and they love it!

gurusan

LOL good attitude

groundedcivic91

O MAN, this is TOOO Good,

You crack me up.

10psi it is then Gentlemen

you guys ROCK

scarecrowX

you're forgetting that there's exhaust pressure on the inside of the wastegate puck that is also trying to force the gate open. this will result in the wg opening earlier than what your gauge says with compressed air alone.

let's figure out what it's REALLY set at.
average streetcar engine has a pressure relationship of PE=2PI, PE being exhaust pressure, PI being intake pressure.

a few numbers:
F=P*A (force=pressure*area)
AD= area of wg actuator diaphragm= (going by what i've read, i don't have one handy) 1.227"
AH= area of wastegate hole= 0.994"
PE= 2PI
FS= force exerted by the spring in the wg can= 9.82lbs (8psi cracking pressure*area of diaphragm)
FD= force exerted on diaphragm= PI*AD
FH= force exerted by PE on wg puck thru hole= 2PI*AH

the point that the WG will begin to open is when FD+FH=FS.
"max boost" by corky bell states that cracking pressure is generally 1/3 to 1/2 full boost pressure. (that's where all these equations are coming from, in case you're wondering)

FS= 9.82lbs so FH+FD=9.8lbs
FH= 2PI*AH= 2PI*0.994
FD= PI*AD= PI*1.227

so (PI*1.227)+(2PI*0.994)=9.82

solve for PI and we get ~3psi as our cracking pressure. which means our max boost with that wastegate is between 6-9psi.

these numbers would be more accurate if someone could measure the wg canister diamter and the diameter of the wastegate hole and plug their areas into the formula (remember A=pi*r^2).

point is, what boost the WG is set at is not as simple as measuring the pressure needed to open it on a bench.

crx304

ummmmmmmm...........














ok!


mike