Finally installed my Variable Intake tonight. Thanks to Redmaxpa007 for supervising.

We started around 5PM and finished up around 2:30AM. We ran into some challenges with the rear bolts on the manifold as well as the coolant hoses right by the EGR down tube.

I do have a vacuum leak located to the upper right. There is a hose which normally plugs into the top of the US Intake Manifold and on the VI it sits on the side. The nipple is much smaller in diameter than stock so I am getting a hellacious vacuum leak using the stock hose.

I will fix tomorrow. We got too tired to test the RPM switch. We do have everything wired and will be testing it tomorrow.

THE GOOD NEWS

I drive an automatic and this thing pulls like a mother fcker.

Unbelievable! Best mod to date and the results are fricking awesome. I am anxious to feel it tomorrow after fixing the vacuum leak.

The cars pulls and pulls and pulls. It feels like it will not stop pulling.

An ECU upgrade would definitely maximize this mod.

For those of you who used the Pulsar SOHC MAP BARO switch:

Which one of the upper nipples is the vent?

I will post once we get the RPM switch running properly.

This thing kicks a$$.

Dave in York

 

If I recall correctly, attach your vacuum source (from the canister) to the outside nipple and the actuator hose to the one right next to it, and leave the nipple on the other end open to vent.

 

I used the MAP Baro off a the pulsar. That is how we did it.

How did yo handle the hose which need to be relocated to the side of the VI rather than the top?

The hose is now too big and iI have a hellacious leak.

Dave

 

I know which hose you're talking about. Just buy a hose adapator from an auto parts store and get a piece of (smaller) hose to adapt to the new intake. I apologize but I don't recall the exact sizes. It'll work out fine with the adaptor, though.

 

Thanks Kev...I think yo had posted that earlier and I could not find the post....
Thanks for saving me some time

 

i am glad we got all the bugs worked out in HIS install..

when we do mine it will be easy.. since we know what we are doing now..

 

good to know you got it working

 

 

I'm glad that you were able to finally get the VIM installed, and better yet I'm glad that your enjoying the mod.

-John

 

That's not good to hear. What's the RPM switch doing? How do you have it hooked up? And WTF won't half these things work


Dave

 

Because they're pieces of crap Dave, they're pieces of crap.

 

And I have on on the way. I hope someone can figure these crazy problems with the switch soon.

 

We rewired, checked and double checked. Turns out we had it set up right but our vacuum lines were reversed.


Now when I just came home, I reset to 2000 rpm's , tested it and nothing.
Light on the RPM switch came on and I heard the relay. Quite possible something could have come loose bu taI have the cover on and am tired.

I will have to recheck it tomorrow.

Dave

 

well it is done.. only cleaning up the install is left..

 

If it doesn't work 100% of the time, the something is messed up with the RPM switch.


Dave

 

If it doesn't work 100% of the time, then something is messed up with the RPM switch.


Dave

 

hmm..



damnit.... looks like i will be coming over later today dave..

 

I know that that is the reason we didn't use the relay. Because for some reason it would work off and on. And after about 2 hours of looking over wiring specs...and switching from coil to cylinder. it just wasn't working constantly...That is why we got rid of the relay switch all together. I mean I would her it switch over like you said Dave but nothing. My suggestion is to just get rid of the relay and give that a whirl. Just my thought though.

-John

 

dave..

take the #$@^%@$#&^#^$ relay and throw it out your garage!!


use the switched ground(white wire) from the harlem and wire it to the ground wire on the MAP. take a line from the battery and run it to the power of the MAP. that way when you hit the correct rpm the circuit will be completed and the MAP will have power.

i know what we have to do, but i might now be able to get to your house tonight..

 

Yeah exactly my thoughts. Personally I think that the relay is causing most of the problems that people are having with there RPM switch.

My friend and I almost gave up on the install because we could it get the fricking thing to work. But, after deciding to get rid of that piece of crap...it worked everytime.

-John

 

I would suggest running a fused line from the battery to the MAP switch just for safe measure.

How hard should I throw my relay across the garage? I've got a pretty strong throwing arm When I get my RPM switch back from Harlan, I will wire it up without the relay. I don't see why there should be any problems.

It's kind of fun running the VI with the toggle switch. I call it "hitting the naaazzzz..." Yesterday, I went out on a lone stretch of road to try and run the VI in all gear 3 gears including 1st. Usually I only switch the VI on in 2nd at WOT because by the time you try and hit the switch in 1st @5000rpm, you're coming up really quickly on redline. Anyways, I gunned it in 1st, hit the switch at ~4800rpms. With the switch "on" on the whole time, I shifted to 2nd right at an indicated 6800rpms (tach is off), got a huge spin into 2nd, rpms landed around 4300 and the car still felt strong and no apparant bog. I wrapped out 2nd and hit 3rd at 6600rpms and chirped 3rd as I entered the gear at 4800rpms!!! The car felt insanely strong. I let off shortly there after which was ~85mph. 0-85mph has never felt stronger. I came away thinking that with the JWT ECU, I could continue to run a toggle switch if needed because I'll only need to switch it in 1st. Every other gear I'll be entering will be near or above 5000rpms (ideal switchover).



Dave

 

agreed
i wanna see that bad boy in pieces after it hits the wall..

 

Whre might one get a fused line or do you run your wire into the fuse..LOL.

I assume you can buy a inline fuse and tap your wire the same way?

Dave

 

silly non electrical type..



yes you can..

 

autozone/napa/pepboys/radioshack

 

wait a minute wait a minute.
so are you guys saying the only way of dictating the VI to turns on and off at desired RPM's is with a manual toggle switch? Like we do with NOS?

 

One or two people had issues with their RPM switch. One user is using a toggle switch as a temporary activation device.......

 

No you can use an RPM switch to turn over at a certain RPM...but if you talking about having it switch over at like 4800 then the next gear turn over at 5000 and then the next gear turn over at 5100...Then currently the only way to do that is manually...but if you want it to switch over at 5000RPMs each time just set the RPM switch and your good to go.

-John

 

What kind of relay are you all using - or more appropriately, were using? Is it possible that the relay you were using had a higher current demand than the Harlan rpm switch could provide?

 

My variable intake is on the way. I'm looking forward to getting a dyno done especially since I have the Gforce ECU. We'll see...

 

You know what's crazy is, you'll get yours before I get mine. hehe