Cobraeater

I wanted to test the Meziere EWP out back-to-back to see if there were any hp gains, so I went to MMT in Dallas on Saturday and dynoed with the stock water pump and then the Meziere.

I gained 0 hp and -1 torque going to the Meziere!

Here's the stock water pump dyno graph.
http://www.cobraeater.cz28.com/cgi-b...ump%20Dyno.jpg

And here's the Meziere dyno.
http://www.cobraeater.cz28.com/cgi-b...EWP%20Dyno.jpg

Here's a graph with the best runs from the stock water pump and the Meziere.
http://www.cobraeater.cz28.com/cgi-b...re%20After.jpg

As you can see there was no hp to be gained, but the cooling and looks are something most people would go for.

With the stock pullies instead of the ASP pullies I might have seen some small gains, but I would consider the ASP to be the better buy.

BoneSS

iTrader: (9)

Thanks for the great info!

KGSloan

muchos gracias

verbs

Do you by any chance know what your engine temperatures were on both dynos?

I've seen a lot of people that drill too big of a hole in their thermostat and have their engines run too cool....i.e. 150-160ish degrees. I'm willing to be if your car was running under 170 degrees with the Meziere vs. 200 degrees with the stock waterpump, that could be some of your missing power.

SStroked 410

damn what a waste of money if someone is expecting to gain hp

but the good thing is the car will run cooler

Cobraeater

Verbs, the dyno runs were done at 170-175 degrees. MMT made sure everything was as consistent as possible.

And I have a 160 thermostat with 1/8" holes in the Meziere for three weeks now which made it run at 168* on the highway instead of 165* with the 3/16" holes and it warms up a little quicker from a cold start.

Terry Burger

iTrader: (4)

I gained 10rw with mine on my old 2001 Z28, and went from 11.1 to 11.0 (at that time) at the track.. I'm sure it adds power, perhaps not all was equal.

Cobraeater

Everything was equal, I switched the stock water pump out with the Meziere and those are the results.

Don't you have the Meziere race pump, and not the street version, which might account for your 10hp gain since it's like a no belt mod?

Terry Burger

iTrader: (4)

In my case I had their "race pump", and I made my own tensioner so I could run power steering, and ran power steering on both tests. Perhaps the pulley on the front of your "street" pump is creating a lot of drag? Seems hard to believe though. EWP's are always worth 8-10rw in like the 4 applications I've used them on, something must be weird with your setup.

Cobraeater

Well I went from 324rwhp and 341rwtorque to 338rwhp and 348rwtorque with the Shaner TB, ASP Pullies, and a TSP Lid(switched to from a MTI Lid), so I think the ASP is working just fine.

NicD

iTrader: (7)

Dyno'd two cars with meziere street pumps and afterwards both cars gained ~6 rwhp.

Cobraeater

Did those cars have an ASP Pully?

Terry Burger

iTrader: (4)

funny aside though, on my car I also gained 0rwhp and 1rwtq with the ASP pulley. Go figure..

NicD

iTrader: (7)

yes..

SSactionLs1

i was under the impression you wouldnt see gains from an ASP on the dyno...wouldnt this also be the case for the pump?

Nickn20

you should see gains from both.