b16_destroyer

The only way I could excuse your lag is if that things pulls like a motha. If your car is "OH MY GOD, OH ---- FAST!!!", then I would not mind the lag.

Bigger displacement and higher boost levels always makes up for lag. I say if your going to go 63AR you better plan on boosting 15+psi to get the full potential of the bigger 63AR.

Todd

Are you calling LAG the time it takes till you reach full boost? Turbo lag is the hesitation you get when you hit the gas and nothing happens till the turbo catches up. The ported .63 ar keeps that from happening because it can flow enough gas around the turbo. My car has no lag. When I step on the gas it performs just like when it was NA and then when boost comes on it just goes faster. To be perfectly honest I see no reason to make full boost any sooner on my car. Any time I am rolling I can downshift and instantly be in full boost and from a launch I don't want full boost right away. Although I am already through first gear like its not even there.

On an ls or some other little engine that does low rpm then a .48 would probably be better.

HMT-Admin

The little .48's are ok for street use, they spool really fast but on each setup I have ever had, they always stop pulling good after 10psi on the top side (above 5000rpms). I really like the .63 on my car right now, and am even considering something a tad bit larger.

Its finding that fine line of a good turbo match, something that doesnt spool to fast, and something that doesnt take the living ---- to rev out of to make power.

Todd

you think you might go bigger than a .63? I guess becuase mine is all ported and stuff it probably a little larger than the normal .63.. Not sure on the stage either.. Pretty sure mine has a 2.5" oulet off the turbo. What does that equal?

J-SMITH69

i doubt the porting makes very much of a difference.. the fins are still the same

b16_destroyer

porting just gives you a little more flow for a few more horses, but it doesn't increase spool time significantly.

Back pressure will give you a quicker spool time, no exhaust will give you quicker spool time, ball bearings will give you quicker spool.

48AR is good for Dseries and LS engines, 63AR's are good for B20's and H22's. GSR's would work good with a stage 3 clipped and ported exhaust side.

ZexRex

yes if you want to have a little more torque and horsepower but a slow car. you need to put something bigger than a .48 to break into low 13s/12s.

89dxhunchback

I have no worries about putting my T3 .60/.63 A/R 60-trim on my D16Z6/A6... should be VERY effective in the higher RPMs, and lag is a good thing too me, so I can have at least half a chance of hooking up. Another member has this in his sig.: "Lag makes the traction, the snail makes the action."

stevecivic

I have a delsol with a gsr and a .48/.60 t3 @ 5.5psi. That thing spools really fast. I have not taken it past 6k so far because of trying to tune it. still had no tracktion in third gear. Do you guys think that this is too small for street use?
thanks
steve

b16_destroyer

I have an 1800 pound car that should weigh 1600 pounds with everything I have gutted from it. I chose the 48AR with the clipped turbine wheel so it won't die out so soon in the power band.

You can talk all of that smack but you know whomever gets the 2Fast 2Furious hole shot will win the race. Yeah, your big laggy 63AR is effective in racing from 80mph on but that is the gayest thing I have ever heard and a quick way to get a stupid ticket or flip over.

Think of it this way, if you could get traction from 1st gear on with the 48AR; don't you think your 63AR would lose.

Think about it.