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High rpm watepumps
- Thread starter 76zimmer
- Start date
I've got Moroso on the 355 in my 83 Camaro. It regularly sees 6500rpm. It's only available as a short style, so I had to use their spacers. It's part number 710-63500 at Jegs. I've got a Weiand on the 454 in my 82 Camaro. That does not run up to that high of an rpm though. Haven't had an issue with either one. I know a bunch of circle track guys running Edelbrock pumps, there must be a reason most of them are using that brand.
A deep groove pulley wouldn't be a bad idea either for that kind of rpm.
A deep groove pulley wouldn't be a bad idea either for that kind of rpm.
I have the Weiand on my Camaro. I turn it 7000 between the shifts. I also have a full set of deep groove aluminum underdrive pulleys (Mr Gasket I think).
I don't think I'd spend the money for an electric one for street use. I'm not sure the power savings would really exist after you count the fact that the alternator will have the added load on it. Plus it messes with your belts. I run a full accessory bracket set from a 82 Camaro minus smog pump. A/C, Power steering pump, alternator, and water pump.
I dunno then. I just trust the belt driven more I guess. If mine craps out along the highway I can walk in any cookie cutter parts store and be on my way in less than an hour.
Stomis
Professional Amateur
Why not just run underdrives and a stock pump? Reduce the speed it spins at and 7500rpms with normal pullys will be spinning more like 5000.
well my Stewart pump took to leaking, and I was thinking of lightening up some horsepower, and also getting rid of the belt driven fan at the same time.
Then I would only have the alternator to run. I hate the thought of a fan/clutch assy coming apart.
Then I would only have the alternator to run. I hate the thought of a fan/clutch assy coming apart.
79rustyk10
3/4 ton status
7500rpm... wow how built is that thing? we need specs and pics!
see this thread:
http://coloradok5.com/forums/showthread.php?t=247594&highlight=Zimmer+vette
It ran 12.65 in that config. mostly in the 70's though.
new specs are 327..+.030 forged rotating assy. 10:1 flat tops. 238/248 duration @.050;.512/.533 cam w/1.6 roller rockers. Double hump ported heads 2.02/1.60. Edlebrock rpm airgap. holley 750vac. sec.
1-7/8 hooker stainless supercomp sidemounts.
T400 full manual trans/ 2400stall
4.10 rear on Firestone Wide Ovals.
http://coloradok5.com/forums/showthread.php?t=247594&highlight=Zimmer+vette
It ran 12.65 in that config. mostly in the 70's though.
new specs are 327..+.030 forged rotating assy. 10:1 flat tops. 238/248 duration @.050;.512/.533 cam w/1.6 roller rockers. Double hump ported heads 2.02/1.60. Edlebrock rpm airgap. holley 750vac. sec.
1-7/8 hooker stainless supercomp sidemounts.
T400 full manual trans/ 2400stall
4.10 rear on Firestone Wide Ovals.
i think a good electric pump would be fine for you. I work at a vette shop right now and we have a 62 running a 592 big block with a electric water pump on it
WannabeRacing
Registered Member
If you are going electric, the Meziere water pumps are without a doubt the best. They are a high flow electric, but have ceramic bearings that will run forever without leaking/dying. They are a ton of money, but they will last for this engine build and the next one too.
A few of they copycat stuff off of the Meziere are decent and much less. Not the quality, but good if you really need to save some bread.
A few of they copycat stuff off of the Meziere are decent and much less. Not the quality, but good if you really need to save some bread.
speedfreekk
1/2 ton status
Electric water pumps are meant for drag racing only not for street use. Most of the time the electric motors don't last that long enough for street driving. If it where to go out while driving on the street you would not make it far. And have to change out the water pump to make it back home.
Now I am not say you can use one, I am going to use one on my car but it might only see 50 miles a month on the street.
Now I am not say you can use one, I am going to use one on my car but it might only see 50 miles a month on the street.
I go to around 6800 with stock pulleys right now with an edelbrock pump. Seems fine so far. It has hydraulic lifters so thats why it's only that, and the heads don't flow enough anyways.
The only thing about high flow pumps is that they don't flow enough at low RPM so you can't really drive around the street, I know of a few that have had this problem.
I don't think you can really expect a pump to last forever when you are turning high rpm's
Heres ours
The only thing about high flow pumps is that they don't flow enough at low RPM so you can't really drive around the street, I know of a few that have had this problem.
I don't think you can really expect a pump to last forever when you are turning high rpm's
Heres ours
that looks like it has fun written all over it.
So I definitely need lower mph cooling. It can run hot waiting in traffic. So if I get an efficient pump at lower speeds, then change pulleys for racing, that would kill 2 birds with one or two stones right?
So I definitely need lower mph cooling. It can run hot waiting in traffic. So if I get an efficient pump at lower speeds, then change pulleys for racing, that would kill 2 birds with one or two stones right?
4xcrazy
3/4 ton status
i could have sworn i saw a factory style GM electric pump on a SS Impala awhile back,,,it LOOKED factory anyways.
i dunno.
I think Lt1's have a cam driven water pump. I know an eletric is a popular swap for thoes motors.
4xcrazy
3/4 ton status
maybe that's what i was looking at then, dunno, know nothing of the LT1 brand name, but i know it wasn't a belt driven unit.
