[gogtogo]

Looking for helpful tips on the pro’s and con’s of the clover leaf cast into the Victor 4500 Intake. I’m on the fence of having it removed as I’m considering a Pro Systems SV-1 carb. The clover also tends to limit the use of tapered spacers as well.

[slowbird]

Tapered spacers won't matter if you run a SV-1 carb

[gogtogo]

Agreed, I just see more con’s than pro’s with the clover leaf. What is the benefit, as I’m sure it adds $$ to the casting process.

[PAUL K]

The clover leaf can help and hurt it depends on the application. If your engine needs more plenum volume and you can't get it somewhere else... Remove the cloverleaf.

[Mark G]

I had a few Victor professionally ported over the years all had the clover leaf removed.. my current combo I used a Northwind made better power ..

[steve25]

Without knowing how many cid your motor is , what heads your running , there ball park runner volume and what they flow, or to be more accurate how much of there flow potential you are making use of with your Cam lift and how high your spinning the motor to, then the your question your asking really can not be answered here!

Some things that you can count on is that both the NW and the Victor can use more Plenum volume with cams above 270 duration @.050" so even just a 1" spacer helps out a good amount with dampening reversion pluses and allowing air flow to take a bigger less restrictive arc into the top of each runner from the Plenum.

The longer runner of the Victor will produce more midrange torque then the NW so which Manifold may work best comes down to where the rest of the motor combo is built to make its Torque and hP peak .

[Mark G]

Originally Posted by steve25

Without knowing how many cid your motor is , what heads your running , there ball park runner volume and what they flow, or to be more accurate how much of there flow potential you are making use of with your Cam lift and how high your spinning the motor to, then the your question your asking really can not be answered here!

Some things that you can count on is that both the NW and the Victor can use more Plenum volume with cams above 270 duration @.050" so even just a 1" spacer helps out a good amount with dampening reversion pluses and allowing air flow to take a bigger less restrictive arc into the top of each runner from the Plenum.

The longer runner of the Victor will produce more midrange torque then the NW so which Manifold may work best comes down to where the rest of the motor combo is built to make its Torque and hP peak .

The Victor did not produce more midrange torque than the NW in my combo Also read this http://www.sdperformance.com/newsStory.php?newsID=53 I am talking from my experience NW for the win ..

[Murf]

Originally Posted by Mark G

The Victor did not produce more midrange torque than the NW in my combo Also read this http://www.sdperformance.com/newsStory.php?newsID=53 I am talking from my experience NW for the win ..

So is your combo “secret squirrel “ stuff or what?
More info would make the info you have shared more useful.

Thanks
Murf


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[Mark G]

Originally Posted by Murf

So is your combo “secret squirrel “ stuff or what?
More info would make the info you have shared more useful.

Thanks
Murf


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505 pump gas hydraulic roller E-heads 2.28 intake 1.71 exh NW intake
750 hp N/A 11.1 compression Motor was built for nitrous Rings gap etc.. 8.91 @ 157 mph 3280 lbs on small shot wrong converter .

[PAUL K]

At 3520 lbs. we went 5.20 @ 134 in the 1/8 with a pump gas 500ish cid engine. With and without the cloverleaf in place. On that combination it didn't make much difference. Fwiw

[Murf]

Originally Posted by Mark G

505 pump gas hydraulic roller E-heads 2.28 intake 1.71 exh NW intake
750 hp N/A 11.1 compression Motor was built for nitrous Rings gap etc.. 8.91 @ 157 mph 3280 lbs on small shot wrong converter .

Thanks for the reply! I didn’t realize you were talking over 500 cubes. Did you run spacers on either intake?

Thanks
Murf


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[Mike Davis]

Paul, is that a stock suspension car?? Looks like ladder bars but can't tell.

[PAUL K]

Originally Posted by Mike Davis

Paul, is that a stock suspension car?? Looks like ladder bars but can't tell.

Ladder bars

[janderson]

I run a 1 1/2” Wilson tapered, so squared up the intake to match the spacer and blended the clover leaf down about 1/2 way in the plenum. Didn’t get too crazy cause I switch to a ET Genie on top of a HVH when slowing the car down.

[gogtogo]

Thanks all for the conversations. Back in 2009 this site was very helpful with the build I’m referring too with clover intake question. Now a days we Pontiac guys seem to turn on one another rather than truly help. The Camaraderie walking through the pits at my first Norwalk Nationals 2000 made me happy to be a Pontiac guy. The Aftermarket was gain gaining steam but we where years behind everyone else. Pontiac was still in the game because everyone stuck together and was willing to help and share knowledge.
That being said, I’m just glad this topic didn’t head off in an unintended direction. I have pulled the engine to replace the aluminum rods. They have been in service since 2005 and have done a fine job as the bearings look like new. The combination works great and makes great power for what it is. I’m going to have some work done on the intake and looking for a Northwind 4500 for HP’s to compare against my Victor.

[slowbird]

Hang tight there was some recent dyno testing done that should shed light on this thread