Slo-Poc

Water pump pulley broke on me and seems to have taken out the water pump. Is there and direct replacement for it that may be a better option. Seems like the ls9 water pump would be more suited for our force induction needs but I'm not sure if I would have to modify anything to get it to work. Also can the pump be replace with out blower bracket removal?

08 ls3
A&A kit and bracket with procharger
Ati 8 rib kit

Ls3 pump to ls9 pump?
Or
Ls3 pump to electric?

realcanuk

By broke do you mean the pulley came off? I always tack weld them to make sure they don't. Never see many problems with the stock pumps.

turbotuner20v

I have an ls2/ls7 water pump with the wider pulley if you go 10-rib. $120

Slo-Poc

Well the pulley is smashed up against the housing and I lost all coolent.

lt1z

Yes always tack weld the pulley to the shaft with an SC. I'd just get an new LS3 and weld it.

Silver Bullet C6

Edelbrock water pump has worked well for me.

Arctic Vette

Evans Water Pump ( special milled for sc, must talk to evans about this) and then Meziere, ive had both.. You have to remove the entire sc bracket for install, the blower has to be pulled out the way at least... But the entire bracket will be removed to put on the new water pump.. Just did this a few months ago.. Get some water pump gasket maker to help hold the wp gaskets while you place the wp on the car.. Also make sure the wp is 100%

Arctic Vette

I think Mez is better at idle but Evans flows insane at wot..



Evans





Meziere

neverstop

hey arctic, do you have any numbers on flow rates of stock ls3/7 vs. the Evans at WOT that makes you say that? I'm just curious how big the difference is

Arctic Vette

Ask n you shall receive..

https://www.google.com/url?sa=t&sour...1D9m8fxfkrdvWw

I have had all 3 pumps obviously stock with FI mez and evans..

realcanuk

My original pump from 2007 is still on my car, and has no issues.

Arctic Vette

Lol love this forum asks for better option.. OP gluck

realcanuk

Point is not everything expensive is a better option. Sometimes things just work great as they are.

lt1z

Mine isn't the original but it is a stock 08 pump no issues.

Detoxx03

For the record he bought another stock LS3 unit.

NeedaC6

Have any insight on why LS3 water pump would start leaking? Seems to happen only on the dyno.

C6 CYAA

I picked up an Evan from ECS. They modified it to fit with the S/C and I installed it myself in about three hours. It took over an hour to get the belt on.

Arctic Vette

How are your temps after?

C6 CYAA

I never had any issues before. I have a "street" set-up and dynoed 559 WHP. If I "hot rod" around on a 85 degree day I might see 205 but it drops down to 175 ish as soon as I settle down...

Arctic Vette

Cool, tks i see good temps at hwy but idle overheats..