timmyZ06

Im patiently waiting for my ECS S/C kit to come in
Now i will have a BAP, 60LBS injectors and alky control meth.
The big question is whether or not im using the restrictor plate? I know ill see more boost without it, but i question is if im taking away some torque as well? Anyone could shime in to help me figure out what is the pros and cons! I dot wanna give up torque/response for more HP, or it doesnt really change anything? Thanks in advance!

schpenxel

It limits boost on the top end. It's affect is less apparent on low end/midrange.

I personally have left it in but opened it up to about 2.9" or so. Stock LS2 here

timmyZ06

Well honestly why would someone with meth and enough fuel would leave it in place then?

DOUG @ ECS

Some guys just like things conservative, especially A6 guys. So even with meth some guys keep the restrictor in place for trans life.

I would pull it if it was my car, but that's just me.

schpenxel

Yep... exactly, on the conservative part. I'm sure I'll pull it at some point, but not yet

timmyZ06

Thanks Doug ! So absolutely no effect on low end power at all?

DOUG @ ECS

Nothing substantial.

Nosferatu

I can give you three from my personal stand point...

1.) The amount of stress being put on a stock block
2.) The lack of traction on a street car
3.) Causing other potential weak links exposed and develop a failure elsewhere

At 640 RWHP on a Mustang dyno, opening up the restrictor to push 700 RWHP + is just going to cause tire shredding up to triple digits. I can't exactly go around on a daily driver with MTs out back.

mch28

Doug, I had you all install and tune my SC kit with meth about a year ago. It has the restrictor in place now. Can I pull it without having it retuned?

Xtremespeed

Doug would know better than I, but I wouldn't pull the restrictor on the 60# injectors personally. I assume the only reason he would suggest it is because you will have the Meth for extra fueling which works fine I guess, I just prefer to have the required fuel without the Meth and then add it for safety. Both ways will work though. Just have to decide which way you want to go.

Xtremespeed

It will more than likely need at least some adjustments. You'll have to log and see.

FormulaLS1

So honestly I doubt the restrictor is really going to change much since you're limiting peak boost the smaller pulley is still making all that mid range torque which is killing the tires.

I don't run the restrictor on mine on RE11s 1st and 2nd would spin no issues but 3rd was fine(base gearing) and now with MT drag radials it hooks 2nd fairly often.

Nosferatu

you would think but I can typically hook and then it'll break up at the upper RPM band as the power ramps up

Either way, I'm going to have to up my tire even though it's a daily.

schpenxel

Yeah, mine breaks loose at higher RPM's in third too. Restrictor plate still in.. so I can only imagine it'd get worse without it. Maybe I'll try it for kicks

DOUG @ ECS

As already posted, it would definitely need to be looked over.

neutron82

it's tough having a daily with that much power and wanting to be able to use it, a tire that will last will not get good traction and a tire that gets good traction will not last very long... I would say maybe trying a toyo r888, they will do better in water than most of the other drag radials but they will not last as long as a regular street tire and are on the expensive side... in my experience they get better traction than any street tire I have used but not as good as a drag radial such as nitto nt05r's... depending on how much you drive I'd think you would at least go through a pair a year, maybe 2 depending on mileage and driving habits

neverstop

at 450whp I'd get >11k miles out of my nt555r with a pretty good amount of hooning on a daily basis and they hooked that power level up great even in 1st gear on the street without burnout, of course 650-700whp is a different ball game but i'd think 10k miles is not unreasonable and they worked great as a dd tire imo.

Chokeu

600 rwhp and 553 rwtq on my LS2 A4, stock block & trans, ECS kit and Alky Meth kit @ 11# of boost. All is well here!

timmyZ06

I guess ill see plus headers and x pipe finally. Go hard or go home they said!

timmyZ06

I dont get why everyone is afraid of meth?! With the proper failsafe, you could tune to make more power on meth. Then with multiple failsafe you could trigger timing cut back to get limp mode if whatever happens with the meth spraying.