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 Ported Blower Photos and Stuff 1996 Riv PIC WORK now

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mrod7510
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PostSubject: Ported Blower Photos and Stuff 1996 Riv PIC WORK now   Tue Sep 07, 2010 8:39 pm

Here are some of photos of what i have done.








Just waiting on my tuner to send over my file:) I also ported the throttle body and installed a 3.1 Pulley. Hope it stays together.


Last edited by mrod7510 on Wed Sep 08, 2010 5:49 pm; edited 1 time in total
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L67
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PostSubject: Re: Ported Blower Photos and Stuff 1996 Riv PIC WORK now   Tue Sep 07, 2010 9:13 pm

mrod7510 wrote:
Here are some of photos of what i have done.








Just waiting on my tuner to send over my file:) I also ported the throttle body and installed a 3.1 Pulley. Hope it stays together.

A 3.1 shocked You don't have headers right? I believe 42.5# injectors are necessary below a 3.2. Be careful.....
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Karma
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PostSubject: Re: Ported Blower Photos and Stuff 1996 Riv PIC WORK now   Tue Sep 07, 2010 9:56 pm

The nitrous acts as a charge cooler and combustible, but yeah... might want something to help get things out of the engine again...

and, I see no pics?

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L67
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PostSubject: Re: Ported Blower Photos and Stuff 1996 Riv PIC WORK now   Tue Sep 07, 2010 10:07 pm

Karma wrote:
The nitrous acts as a charge cooler and combustible, but yeah... might want something to help get things out of the engine again...

and, I see no pics?

Right, I cant imagine he's on the funny gas 100% of the time though....
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mrod7510
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PostSubject: Re: Ported Blower Photos and Stuff 1996 Riv PIC WORK now   Tue Sep 07, 2010 10:19 pm

Your right I need headers frown
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L67
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PostSubject: Re: Ported Blower Photos and Stuff 1996 Riv PIC WORK now   Tue Sep 07, 2010 10:24 pm

mrod7510 wrote:
Your right I need headers frown

SSACs are only 350 shipped....DO IT!

http://www.ssautochrome.com/level.itml/icOid/1886
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mrod7510
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PostSubject: Re: Ported Blower Photos and Stuff 1996 Riv PIC WORK now   Wed Sep 08, 2010 12:14 am

Looks good. Will test and monitor my tune tomorrow on the freeway to work:)
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Abaddon
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PostSubject: Re: Ported Blower Photos and Stuff 1996 Riv PIC WORK now   Wed Sep 08, 2010 8:41 am

Yeah dude. You aren't going to run a 3.1" pulley. It just isn't gonna happen. You have quite a few more mods left to go before you even get down to a 3.3".

Pics aren't showing btw.
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mrod7510
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PostSubject: Re: Ported Blower Photos and Stuff 1996 Riv PIC WORK now   Wed Sep 08, 2010 9:45 am

So what will happen?
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L67
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PostSubject: Re: Ported Blower Photos and Stuff 1996 Riv PIC WORK now   Wed Sep 08, 2010 9:53 am

mrod7510 wrote:
So what will happen?

Chipped piston, or you'll get lucky and just be very slow running very low timing if your PCM can keep up with the knock or switch to the bad fuel spark table.
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PostSubject: Re: Ported Blower Photos and Stuff 1996 Riv PIC WORK now   Wed Sep 08, 2010 10:06 am

Your engine will produce excessive knock under a load, which may result in holes in the tops of the pistons. Judging by your mods listed in your sig, I'll bet you have spikes of about 8* or better of KR, WOT in the upper RPM band right now. You at least need AL104 plugs with a smaller gap and headers with your current setup to get the KR down.

I'm maxed out right now with my pulley size (3.25"). I need a Cam and/or an Intercooler (in addition to the mods already done) if I want to run a smaller pulley. I got the KR tuned down to about 4* at WOT @ 5500rpms now. I can't tune out any more without more mods.
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mrod7510
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PostSubject: Re: Ported Blower Photos and Stuff 1996 Riv PIC WORK now   Wed Sep 08, 2010 11:13 am

I drove it this morning and it feels stronger, I won't be able to put the wide band on it till after work, I did not hear any pinging? For what that's worth. I do have 104's gap @.030 for the Nitrous. Yes I need headers and I'll pick up a set soon. I figured that if I were really restricted on the exhaust side my boost would be higher. It's about 11lbs by the gauge, 1/2 a lbs less than before the ported blower throttle body and 3.1?
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PostSubject: Re: Ported Blower Photos and Stuff 1996 Riv PIC WORK now   Wed Sep 08, 2010 11:30 am

You are running a 3.1 pulley with no exhaust or vavletrain mods? You will chip a piston or blow a hole right through one. Stay away from heavy throttle completely. Even mid throttle with slight boost will be more than you bargained for. Do you have a scanner so you can see KR? Have you de-tuned, i.e. removed timing so you lessen your risk of piston damage? I say again, running a 3.1 piston with no valvetrain mods is going to pop a piston.
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PostSubject: Re: Ported Blower Photos and Stuff 1996 Riv PIC WORK now   Wed Sep 08, 2010 11:32 am

mrod7510 wrote:
I drove it this morning and it feels stronger, I won't be able to put the wide band on it till after work, I did not hear any pinging? For what that's worth. I do have 104's gap @.030 for the Nitrous. Yes I need headers and I'll pick up a set soon. I figured that if I were really restricted on the exhaust side my boost would be higher. It's about 11lbs by the gauge, 1/2 a lbs less than before the ported blower throttle body and 3.1?

You may not hear it, but trust me (us), it's there. The PCM will compensate for up to 15* KR (as far as I've seen). It will retard the timing as soon as hears knock, which is faster than you will ever hear it. I didn't think I had that much KR either (at first). I didn't see it all until the scan/tune. I had 0* KR until around 5000rpms. At that point, it slowly crept upward to almost 10* at the shift point. You may not notice it because the car gradually loses HP up to that point. It took quite a bit of tuning to get it (mine) where it's at now. I read that you're waiting for a "tune" from someone. A generic tune set up on a comp isn't going to help you completely. You should have it scanned, and then tuned to what your engine needs.

Also, the stock exhaust manifolds on this engine suck, and are a huge choking point. The front manifold has smaller primaries than the rear. This can result in the front bank of pistons failing on you under excessive boost i.e. they work harder than the rear. The more air you put in, the more air needs to come out. Now that I think of it, I should take a pic with my mic to show you. I have my stock manifolds in a box here at work. The headers were an awesome investment. They're fairly easy to install IMO, with only a few modifications to fit the Riv.

I'm a little on the crazier side than most of us on this site, but even I think a 3.1" pulley on your current setup is destined for disaster.......
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mrod7510
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PostSubject: Re: Ported Blower Photos and Stuff 1996 Riv PIC WORK now   Wed Sep 08, 2010 12:06 pm

I have cut the cat off and yes I my tuner pulled timing up high, I am learning the tuning so to make changes myself. Headers are next! Why do you guys think I lost boost?
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PostSubject: Re: Ported Blower Photos and Stuff 1996 Riv PIC WORK now   Wed Sep 08, 2010 12:29 pm

Guys, let's not forget N2O is a liquid intercooler in addition to being a liquid form of forced induction. The reason N2O works at all is because it chills the cylinders, keeping knock under control, even with extreme cylinder pressures - this assumes you are commanding the correct amount of fuel. So we may well be able to support a small shot of N2O in addition to the blower, but... the 3.1" pulley could cause another problem: fueling.

Can the fueling keep up? As mentioned by L67, stock injectors are pushed to their limits below a 3.2" pulley size. Now you introduce N2O (basically a 2nd supercharger). I'm not sure there's any way to deliver enough fuel for the amount of power this set-up can make. Talk to anyone who knows anything about using the bottle - they know the most important rule is to deliver the right amount of fuel to match all of that O2. If you can't get the A/F right, it's only a short period of time before things go "boom".

Get a scanner hooked up and see what's going on. It's an easy way to see what level of KR you have. Even if it was knock free, I would scan periodically to be sure things stay correct. If just one time something goes wrong with fuel delivery, it's all over. I would probably have an AeroForce gauge in my car before I tried doing something like this.

Last thing, you may want to back off the timing a couple degrees using a tuner. Just some insurance to protect against detonation. You can run a 3.1" all day long if you don't go WOT with it. It won't knock until the load increases. At that point, the N2O comes in and kills the knock, adds power. It might work. The thing I'd watch is those times you aren't at WOT but still under load (going uphill in OD). Need to tune timing to deal with that. And if you ever run the 3.1" WOT without N2O, it won't be good.

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DEMonte1997
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PostSubject: Re: Ported Blower Photos and Stuff 1996 Riv PIC WORK now   Wed Sep 08, 2010 1:08 pm

Where are the pics?
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mrod7510
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PostSubject: Re: Ported Blower Photos and Stuff 1996 Riv PIC WORK now   Wed Sep 08, 2010 1:23 pm

Yeah, air fuel with nitrous before my resent mods on the dyno were 10 o's or fat, I choose to keep it there with the jetting 25/41 nos jets for now. I'm eager to see the numbers now without nos and current mods, anyone have a tunercat tune on kill I can look at and compare to what my tuner has done ?
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mrod7510
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PostSubject: Re: Ported Blower Photos and Stuff 1996 Riv PIC WORK now   Wed Sep 08, 2010 1:26 pm

My pictures won't show up on my iPhone for some reason,need computer only to see them in the post . If not let me know I'll send them to ya
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PostSubject: Re: Ported Blower Photos and Stuff 1996 Riv PIC WORK now   Wed Sep 08, 2010 1:44 pm

None of the pics show up. We can't see them either.......
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PostSubject: Re: Ported Blower Photos and Stuff 1996 Riv PIC WORK now   Wed Sep 08, 2010 1:52 pm

The URLs you posted are not image links, they're links to a gmail-only area.

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'98 SC Riviera 268k miles 298 HP/370 TQ 0-60: 5.79s ET: 13.97 @ 99.28 4087 lb 20.1 avg MPG Nelson Ledges Lap: 1:30
3.4" pulley AL104 plugs 180 t-stat FWI w/K&N 1.9:1 rockers OR pushrods LS6 valve springs SLP headers ZZP fuel rails
KYB GR2 struts MaxAir shocks Addco sway bars UMI bushings GM STB Enkei 18" EV5s w/ Dunlop DZ101s F-body calipers
EBC bluestuff/Hawk HP plus SS lines Brembo slotted discs DHP tuned Aeroforce Hidden Hitch


'05 GTO 49k miles 0-60: 4.8s 16.9 avg MPG Nelson Ledges Lap: 1:26
Because fun
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mrod7510
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PostSubject: Re: Ported Blower Photos and Stuff 1996 Riv PIC WORK now   Wed Sep 08, 2010 4:30 pm

I'll fix tonight sorry.. Lame frown
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mrod7510
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PostSubject: Re: Ported Blower Photos and Stuff 1996 Riv PIC WORK now   Wed Sep 08, 2010 5:05 pm









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PostSubject: Re: Ported Blower Photos and Stuff 1996 Riv PIC WORK now   Wed Sep 08, 2010 8:13 pm

AA wrote:
Can the fueling keep up? As mentioned by L67, stock injectors are pushed to their limits below a 3.2" pulley size. Now you introduce N2O (basically a 2nd supercharger). I'm not sure there's any way to deliver enough fuel for the amount of power this set-up can make. Talk to anyone who knows anything about using the bottle - they know the most important rule is to deliver the right amount of fuel to match all of that O2. If you can't get the A/F right, it's only a short period of time before things go "boom".

It looks like it's a wet shot so fueling should be ok provided nitrous on and set up right. That is assuming the fueling without the nitrous is on track with that pulley. I've heard over and over that a wet shot is bad for the supercharger rotor coating but those are cheaper to replace than pistons.
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PostSubject: Re: Ported Blower Photos and Stuff 1996 Riv PIC WORK now   Wed Sep 08, 2010 11:39 pm

How did you plug up the silencer ports on the outlet of the blower? It is hard to tell from the pictures, but the plugs look like they are not in there very secure.

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