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Old 12-19-2005, 11:47 AM   #1
VWGrk1
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Default SMC Users- What Size Nozzle Are You Running?

I am running a stage 4 setup w/ an 18G. I have the SMC kit ready to go, but I think that the nozzle that I am using is too big. My memory might be off, but the nozzle they usually send with the kit is a HAGO 7 or .07.

For some reason, I asked for a HAGO 10 or .10. With this nozzle, I think that I am spraying way, way too much booze and flooding the motor. I had the car on a dyno and the darn thing was mis-firing like mad. The tuner was Jorge, a well-known expert, so I highly doubt that there was something wrong with the tuning procedure.

So, what nozzle are you all running on a stage 4 setup?
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Old 12-19-2005, 11:50 AM   #2
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I was asked by Steve when I ordered my kit (purchased directly) what size nozzle and was given two options; WRX nozzle or STI nozzle. I choose the sti and run it on my stage-4 2.0L without problem (tuned accordingly of course). No idea what size the “STI nozzle” actually is…
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Old 12-19-2005, 07:05 PM   #3
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Yeah, I think that I might have the STi nozzle, but that is odd that it works for you just fine.

Anybody else?
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Old 12-20-2005, 05:15 PM   #4
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Anybody else?
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Old 12-20-2005, 05:54 PM   #5
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maybe you are running to much pressure through your nozzles?

dunno just a thought
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Old 12-21-2005, 01:21 AM   #6
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does your controller have a set of dipswitches on the side of it , if so then you can raise or lower the max pressure the pump pushes, as for nozzle size i'm at stage 2+ and run a #7 at about 100psi max on the pump with the stock td04 and at wot she pulls pretty hard but i could possible get away with a #5 or #6 at a lower max psi , but since i've got bigger turbo plans the #7 is ok by me.


mike
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Old 12-21-2005, 01:24 AM   #7
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Quote:
Originally Posted by VWGrk1
The tuner was Jorge, a well-known expert, so I highly doubt that there was something wrong with the tuning procedure.

So, what nozzle are you all running on a stage 4 setup?
I know Jorge recommended a 5-7gph nozzle before he tuned my setup...
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Old 12-21-2005, 09:30 AM   #8
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Quote:
Originally Posted by tribalwrx
does your controller have a set of dipswitches on the side of it , if so then you can raise or lower the max pressure the pump pushes, as for nozzle size i'm at stage 2+ and run a #7 at about 100psi max on the pump with the stock td04 and at wot she pulls pretty hard but i could possible get away with a #5 or #6 at a lower max psi , but since i've got bigger turbo plans the #7 is ok by me.


mike
The only dipswitch is me for ordering a #10 nozzle

It does have a rotating dial where you select the beggining and max spray points. We put the max spray setting to the max- to a psi that I would not be able to reach. This would, in effect, lower the amount of alky injected, but it was still too much.
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Old 12-21-2005, 09:34 AM   #9
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Quote:
Originally Posted by testes1010
I know Jorge recommended a 5-7gph nozzle before he tuned my setup...
Thanks, I'll order a smaller nozzle. You have a bigger snail and are making great power with the smaller nozzle. Wait, that didn't come out right
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Old 03-03-2006, 02:51 PM   #10
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I just ordered a kit..and I told him i have vf22 w/ fmic and going to be hitting 22 psi. He said I should get a STI nozzle..#10...so thats what I went with.
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Old 03-05-2006, 09:02 PM   #11
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Keep us updated on how that works out for you.
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Old 03-06-2006, 12:03 PM   #12
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It all depends how much air you are pushing.
There is nothing wrong with using a 10 on a WRX, as long as you are pushing a lot of air, and if you are feeling like you are flooding the motor, just pull more fuel out.
What A/F are you at?
I know a guy running like a 15 on his STI with his rotated mount setup with great success.
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Old 03-07-2006, 09:06 AM   #13
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Quote:
Originally Posted by Davenow
It all depends how much air you are pushing.
There is nothing wrong with using a 10 on a WRX, as long as you are pushing a lot of air, and if you are feeling like you are flooding the motor, just pull more fuel out.
What A/F are you at?
I know a guy running like a 15 on his STI with his rotated mount setup with great success.
I am running an 18G stg 4 setup. Not sure how to quantify how much air I am pushing, but on my non-alky UTEC map I see MAF voltage of 4.5 in the high rpm range. 20-21 psi peak tapering to 18.5 psi in the 6000+ range. I am having an odd issue with holding boost in the 6000+ range that I won't get into right now.

Jorge, my tuner, was shooting for at least another 2-3 psi accross the board with alky, IIRC.
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Old 03-07-2006, 09:47 AM   #14
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Quote:
Originally Posted by VWGrk1
I am running an 18G stg 4 setup. Not sure how to quantify how much air I am pushing, but on my non-alky UTEC map I see MAF voltage of 4.5 in the high rpm range. 20-21 psi peak tapering to 18.5 psi in the 6000+ range. I am having an odd issue with holding boost in the 6000+ range that I won't get into right now.

Jorge, my tuner, was shooting for at least another 2-3 psi accross the board with alky, IIRC.
I bet its the boost controller...im having trouble holding boost over 18 psi. The stock solenoid is not strong enough, so I picked up a Perrin Boost Solenoid, now it holds boost perfectly...
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Old 03-07-2006, 03:17 PM   #15
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For clarification, SMC kits come with 7, 10, or 15 size nozzles. 7 is for most WRX setups and 10 for most STi setups. But those with heavily modified WRXs, Steve recommends a 10. A heavily modded STi will run a 15, as would a very heavily modified WRX.

In your case, I would think a stage 4 WRX running an 18G should be at least comparable to a Turboback STi like me. And Steve recommended I get a 10. Unfortunately I am waiting on a tune so can't tell you how my 10 size nozzle is running. But if you really think its not working give Steve a call and get a size 7.
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Old 03-07-2006, 03:53 PM   #16
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Steve @ SMC said he included the standard #7 nozzle in my kit and I am running an APS S/R30 turbo (263hp @ the wheels). I cant wait to get my '02 tuned with the alcy injection!!!!
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Old 03-07-2006, 03:56 PM   #17
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Quote:
Originally Posted by BVM
Steve @ SMC said he included the standard #7 nozzle in my kit and I am running an APS S/R30 turbo (263hp @ the wheels). I cant wait to get my '02 tuned with the alcy injection!!!!
You might need a #10...
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Old 03-08-2006, 12:49 PM   #18
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Quote:
Originally Posted by wrxraaca
You might need a #10...
#7 is fine. I have tdo5 18g with a FMIC and I am running #7 nozzle. Works great and gained 50/50 hp/tq.
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Old 03-08-2006, 01:43 PM   #19
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Thats a damn good gain...would any of you guys be able to post a log...I want to see what kind of timing you guys are getting w/ the 50/50 meth and water...
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Old 03-08-2006, 03:17 PM   #20
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Got to add like 5-6 degrees and the car still taking to more but we hit the limits of the stock WRX tranny and engine in terms of reliability....didn't want to take my chances.
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Old 03-09-2006, 10:09 AM   #21
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Quote:
Originally Posted by wrxraaca
I bet its the boost controller...im having trouble holding boost over 18 psi. The stock solenoid is not strong enough, so I picked up a Perrin Boost Solenoid, now it holds boost perfectly...
I have a GM solenoid in there, so I do not think that it is the problem. The tuner and I think that it might be the UTEC because boost drops off like a switch at about 6200 rpm and comes back, like a switch, at about 7000rpm. Very, very wierd.

I want to try using an MBC to see if it is the UTEC's boost control or not that is causing this issue.
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Old 03-09-2006, 10:39 AM   #22
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Quote:
Originally Posted by VWGrk1
I have a GM solenoid in there, so I do not think that it is the problem. The tuner and I think that it might be the UTEC because boost drops off like a switch at about 6200 rpm and comes back, like a switch, at about 7000rpm. Very, very wierd.

I want to try using an MBC to see if it is the UTEC's boost control or not that is causing this issue.
My tuner and I was seeing the same issue on another guys STi with FP Red turbo. IT would boost great then out of nowhere *poosh* boost drops and then climbs right back up. It is almost like the wastegate blew open and then closed back up. Tuning with EcuTek and very very wierd. We tightened the wastegate arm several times and it still did it. Another tuner also had the same issue with another car also with FP Red. Feels like the turbo is blowing the wastegate open.
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Old 03-09-2006, 10:45 AM   #23
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Yeah, we tightened the arm, but to no avail. This is the third turbo that I have had this issue with. The first was a modded stock turbo (kind of hard to blame the EM since it is a small snail) then a VF22 and now this one.
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Old 03-09-2006, 11:42 AM   #24
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Honestly I would look into the GM solenoid if it was there the entire time.
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Old 03-09-2006, 11:50 AM   #25
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I am upgrading to a fp green on my Sti and don't know whether to run a #10 or #15, anybody have an answer?
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