Have anybody tried to experiment with moving the time of solenoid activation!?

The new 204HP VE only has one solenoid, so that the intake and exhaust cam activates at the same time!

Have anybody tried that on a 190HP VE to see if there would be any gain between 6000-6500? – I mean it is VERY easy to give the exhaust solenoid the same signal as the intake solenoid so that it activates at 6000 rpm instead of 6500 rpm.

Just one more question. Have anybody tried to move the activation time down to fx. 5000 rpm!?

I currently have my intake switching at 5000 rpm and my exhaust at 5200 rpm. Dyno tuning is the only way to really tell the optimum switch points but sotp tells me this is a pretty good starting point.

Take a look at this thread. Ignore the dyno sheet and look at the printout of the HP a couple post down.
http://www.sr20deforum.com/showthread.php?s=&threadid=26038
My intake cam was triggering at 4700 and the exhaust at 5000 rpm. You can see that my intake may be a tad to soon but not by much. My exhaust at 5000 really is a little early and needs to be moved to 5300 or so. Only another dyno day will really tell.

What are your impressions and opinions of the VE now that you've had some extended seat time?

When dio you plan to install the SR16 cams?

Originally posted by Shoes59
What are your impressions and opinions of the VE now that you've had some extended seat time?

When dio you plan to install the SR16 cams?

I am very happy. I still have not installed the SR16 cams, maybe in a week or two. The engine is smooth and powerful. I have autocrossed it once in the dry and I had the ability to spin my wheels at practically any point on the course (lots of sweepers/no straights to speak of). I have ordered some Kuhmo's to help put the power down. At the track a 14.6 may not sound that great BUT that is mostly my driving. I trap at 95mph which is faster then a built ITR that is running slicks in the 13's. If I wanted a drag car a turbo would have been a better choice but for what I wanted the VE was the way to go.

Jim, a question for you. Are you running an underdrive pulley on your water pump. I really want to do that for track driving.

yes, i beleive he has the water pump pulley

Originally posted by 98sr20ve
Jim, a question for you. Are you running an underdrive pulley on your water pump. I really want to do that for track driving.
I am but honestly I'm not sure if the UR water pump pulley is any different than the stock unit. I was under the impression that the crank pulley had a smaller diameter for the water pump belt and that's what underdrove the water pump.

If this is the case I'm not sure the UR water pump pulley is helping or hurting me. At the track my temps are OK so I really had no reason to question it...till now.

Originally posted by Shoes59
I am but honestly I'm not sure if the UR water pump pulley is any different than the stock unit. I was under the impression that the crank pulley had a smaller diameter for the water pump belt and that's what underdrove the water pump.

If this is the case I'm not sure the UR water pump pulley is helping or hurting me. At the track my temps are OK so I really had no reason to question it...till now.

Crank smaller = underdrive everything
water pump/etc bigger = underdrive just that unit.

So is the one on the pump the same size as the oem one. Andreas told me that the VE pump and the 2000+ waterpumps dont have the problem with cavitation that the older style pumps have.

Originally posted by 98sr20ve
So is the one on the pump the same size as the oem one. Not sure. I swapped pullies when I installed the VE and never thought to look.

Originally posted by TeamNISSAN
Have anybody tried to experiment with moving the time of solenoid activation!?

The new 204HP VE only has one solenoid, so that the intake and exhaust cam activates at the same time!

Have anybody tried that on a 190HP VE to see if there would be any gain between 6000-6500? – I mean it is VERY easy to give the exhaust solenoid the same signal as the intake solenoid so that it activates at 6000 rpm instead of 6500 rpm.

Just one more question. Have anybody tried to move the activation time down to fx. 5000 rpm!?

From the looks of it, your exhaust activation is around 6500 and your intake is at 5000. i'm thinking it might be too late in the powerband for that. youmight get a bit more power if you lower the activation to around 5000 for both. I'd say 4900 for intake and 5200 for exhaust.

BTW what computer do you have?

Originally posted by civicdragon
From the looks of it, your exhaust activation is around 6500 and your intake is at 5000. i'm thinking it might be too late in the powerband for that. youmight get a bit more power if you lower the activation to around 5000 for both. I'd say 4900 for intake and 5200 for exhaust.

BTW what computer do you have?

Thanx m8,

I have read a few other threads now and almost got answer to all my questions!! :)

The last thing that bothers me is that I can't hear when the intake cam activates!? Does it make as hard a sound change as the exhaust cam!? - I haven't been able to go thrue this very thoroughly because I have only accelerated the three times I have taped for the ftpfor you guys, but anyway I didn't succed in pointing out when the intake cam did activte or if it did at all! :( - How does it sound on all your VE's!? :)

My workstation is a +1800MHz AMD on an ASUS A7V-333 with 1GB PC2700 ram - 128MB GeForce3 TI200 - 400GB Harddisk

The intake is more sutle then the exhaust. Disconnect the exhaust and then see if you notice it better. I am sure it is fine. It takes a bit of driving to get over the excitement and just listen to the engine to hear these things.

Originally posted by TeamNISSAN
The last thing that bothers me is that I can't hear when the intake cam activates!? Does it make as hard a sound change as the exhaust cam!? - I haven't been able to go thrue this very thoroughly because I have only accelerated the three times I have taped for the ftpfor you guys, but anyway I didn't succed in pointing out when the intake cam did activte or if it did at all! :( - How does it sound on all your VE's!? :)

My workstation is a +1800MHz AMD on an ASUS A7V-333 with 1GB PC2700 ram - 128MB GeForce3 TI200 - 400GB Harddisk

It sounds like it gets a bit louder at exactly 5K on the tach, then at 6500 so I think it is intake, then exhaust.

I meant what computer are you runningin your car? The stock one or an aftermarket one?

Originally posted by 98sr20ve
The intake is more sutle then the exhaust. Disconnect the exhaust and then see if you notice it better. I am sure it is fine. It takes a bit of driving to get over the excitement and just listen to the engine to hear these things.

I hope so! :)

Thanx I will try. As you say yourself, I might pay more attention to it when I don't have to listen to strange noises anymore! :D

Originally posted by civicdragon
It sounds like it gets a bit louder at exactly 5K on the tach, then at 6500 so I think it is intake, then exhaust.

I meant what computer are you runningin your car? The stock one or an aftermarket one?

he he he thought you were talking about the ftp! :)

My ECU is stock VE ECU from a 6 speed CVT - The one that came with the engine! :)

Originally posted by civicdragon
It sounds like it gets a bit louder at exactly 5K on the tach, then at 6500 so I think it is intake, then exhaust.

I meant what computer are you runningin your car? The stock one or an aftermarket one?

BTW isn't it supposed to hit the intake at 6000 and exhaust at 6500 stock!?

Originally posted by TeamNISSAN
BTW isn't it supposed to hit the intake at 6000 and exhaust at 6500 stock!?

I'm not sure what the factory settings are, but that seems a bit too late...

And the reason why I think the points are where I said, was because in my Integra GSR, it has a dual stage intake manifold... So its almost like having two cam switch points... at like 4500 Vtec kicked in, and at 6750 the dual runners opened fully... so it was like vrromm, VVrrroo, then VRRROOOOMMM... kinda like yours, except its all on the intake side

the UR pulley is larger than the stock one. i can get a pulley that is larger than the UR pulley. it works really good.

Originally posted by civicdragon
I'm not sure what the factory settings are, but that seems a bit too late...


Hmmmmmm OK!! :)

Next time when I have it on the dyno, I will try to use the Nissan tester to see when it gives the signal to the solenoids! :)

Originally posted by bigtom
the UR pulley is larger than the stock one. i can get a pulley that is larger than the UR pulley. it works really good.

eeeeeehhhhhh what pulley are we talking about!? What is UR!? :)