Most of you SC guys are running the 3.125 pulley right??? that boosts at what 10-11 psi?

why dont more people use the 2.87...I mean...people have showed the VQ can handle loads of power so I dont see the reason being that people are afraid of blowing motors...whats the reason?

is 10-11psi enough for you guys?

whats the deal?

also whats the 2.87 max boost psi?

 

scared...I will be using the 3.125....Im scared enough running that pulley

-matt

 

I think it has more to do with overspinning the blower rather than being afraid of the power

 

Correct. A 2.87 will overspin the blower. Shouldn't be a major problem though as long as you don't hold it at the redline for a long time (top speed run or something).

I plan on getting a 2.87 once I get my current fuel issue worked out.

 

If you overspin the blower does that mean you totally destroy it??? how much is it to replace? or fix?


Hey ejj,

why engine number 2???

 

Im pushing my daily driver enough, why stress it anymore? Rather have a different car with a different drivetrain, whats the point of having more than 300hp in a fwd car? Basically its fast enough for what it is.

 

If I remember correctly one of the screws on his MEVI fell into his engine and it went boom?

 

The issue is not more over spinning the blower, more of the issue of detonating. You need to have a J&S to do the timing retard. Otherwise at 13-14psi you detonating (inaudible) which is damaging it already.

Dixit

 

whats J&S?

 

http://www.jandssafeguard.com/safeguard.html Boost related timing retard unit with knock detection retard.

Dixit

 

Correct. Nothing to do with the SC.



I'm not going to worry about the engine and just up the boost. I am however going to use race gas when I'm at the track and get a wideband before that.

I don't see the point in investing hundreds if not thousands on protecting an engine that only cost me $500. If I break it, I'll just replace it again.

 

how much is that?

and did Mardigrasmax have that?

 

Mardisgrasmax did have one. It costs about 550 i believe without the gauge/monitor, and 700 I believe with.

Dixit

 

what about psi??? going to see max boost at 15psi with 2.87?

 

At some point the ~$700 j&s would pay for itself


I understand what your saying, but I think most of us would rather have safe reliable power.

I am not one to talk, I blew my motor due to a lean condition

 

If you go through engine after engine, then yes. However, I'm going to see just what a stock engine with a stock computer (no J&S) can do. I don't boost much on the street. I think with race gas at the track and good tuning, you may be fine without a J&S.

 

Hey, for $539, you can tune your AFR and TIMING with a Split Second FTC1...if you have a laptop.

J&S Safeguard is better, but you still need an AFC, so add another $200-$300 on top of $600-$700.

 

is J&S needed with a 3.125 pulley ??

matt

 

You don't need race gas, just get Aquamist and run a 50/50 mix of water/alcohol.

 

Nah. Aquamist is expensive, and robs boost/power. Yes, its a good idea, but seems over the top.

If I were to consider that option, I'd go for a small shot of nitrous (wet kit) first.

 

Or just get an intercooler of some sort... an AWIC or a FMIC. That would help you lots when you are creating that much heat from boost. Then you can avoid getting the J+S until later on. The AFCs are definately reccomended to richen up the upper RPMs if you need.

<shameless plug> I have my ICed S/C kit for sale! </shameless plug>

 

Robs boost/power?

Nah, you're mistaken. Kev gained with his.

$420 and free refills is cheap IMO.

 

Are you a sales rep for them or something?

I'm not considering Aquamist an option. Just not a road I'm interested in going down.

 

No - more like 12PSI. That's what I hit regularly on my 2.87".

MardisGrasMax was running a 2.6" Pulley when he hit 13-14PSI, not a 2.87"

IanS

 

Matt had a V1. Do you have a V1 or V2?

 

V2 with a V1 Bracket.

 

What about overspinning with a 7200RPM limiter?

:>

I am too nervous to run a 2.87 with my 7200RPM limit, 100k engine, and the 220 PSI compression test.

Thanks, good game.

IanS: what PSI do you see at 7200RPM?

What were your compression test results?

Please convince me to run the 2.87 on my only car I own.

 

I hit my 7200 RPM limit all the time with only 1-step colder plugs even.

The compressor and engine both seem to be running perfectly.

IanS