SD-Concepts 6 rib questions.....
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From: Albuquerque, NM
SD-Concepts 6 rib questions..... Just in case this cog set up doesn't work out.....
Maybe SD concepts can shed some light on this for me or a user or two.
Will the 6 rib SD concepts set up be able to push 14-15psi? I still have my MMS 7.785 crank pulley and a 3.4 s/c pulley that I could use with it to make some good boost.
What does everyone think?
J
Maybe SD concepts can shed some light on this for me or a user or two.
Will the 6 rib SD concepts set up be able to push 14-15psi? I still have my MMS 7.785 crank pulley and a 3.4 s/c pulley that I could use with it to make some good boost.
What does everyone think?
J
Nope this kit is for both 6 rib and 8 rib...... the 6 rib kit is just the new spring tensioner and a 90mm idler pulley. I believe the price went up on the kit.......... I should work Jer..... only one way to find out..... SD Concepts say they can max out the P1-SC so we will see....
Kyle
Kyle
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I made 14lbs of boost with a 6rib belt on my 93 LT1 car. There was no belt slippage and the car would have made more boost if it wasn't for the small twin high flow intercoolers. The tensioner does work very well and I am a huge believer that you do not need a cog belt setup until you try this tensioner out. 
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From: Albuquerque, NM
WIKDPSI, Thanks for the info
That is exactly what I wanted to hear. I will be calling Wendy@SD here shortly to see what they can do for me.
Bos, I'll try it and test it out, nothing like finding out what works and what doesn't
Heath, whats the max boost have you seen so far?
Kyle, hmmm, website says 350? maybe I can score a deal? From what I understand I can always upgrade to the 8rib for the difference between the two sets
J
That is exactly what I wanted to hear. I will be calling Wendy@SD here shortly to see what they can do for me. Bos, I'll try it and test it out, nothing like finding out what works and what doesn't
Heath, whats the max boost have you seen so far?
Kyle, hmmm, website says 350? maybe I can score a deal? From what I understand I can always upgrade to the 8rib for the difference between the two sets
J
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From: Bellevue, Wa
still taking it easy on mine due to not being finished yet but thus far I have seen 10psi by 4900 rpm where I let off. Thats with a loose 6 rib belt.
I will be letting it all hang out in 2-3 weeks. I don't get much time to work on the car (usually only 1 weekend day) so as you know it takes me forever to do anything
I will be letting it all hang out in 2-3 weeks. I don't get much time to work on the car (usually only 1 weekend day) so as you know it takes me forever to do anything
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Originally Posted by frcefed98
WIKDPSI, Thanks for the info That is exactly what I wanted to hear. I will be calling Wendy@SD here shortly to see what they can do for me.
Bos, I'll try it and test it out, nothing like finding out what works and what doesn't
Heath, whats the max boost have you seen so far?
Kyle, hmmm, website says 350? maybe I can score a deal? From what I understand I can always upgrade to the 8rib for the difference between the two sets
J
That is exactly what I wanted to hear. I will be calling Wendy@SD here shortly to see what they can do for me. Bos, I'll try it and test it out, nothing like finding out what works and what doesn't
Heath, whats the max boost have you seen so far?
Kyle, hmmm, website says 350? maybe I can score a deal? From what I understand I can always upgrade to the 8rib for the difference between the two sets
J
It was $275 a while back................ and the 8 rib setup went up a $100 also.......... Im going to call about mine today.
Heath,
What size blower pulley did you recieve and what are they saying its rated at boost wise???
Thanks
Kyle
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From: Albuquerque, NM
275
oh well, I called about 30 min ago, but the dude said to leave my number and someone will call me back. I hope they do.
I wonder what kind of boost I will see with the MMS pulley and a 3.4 pulley with this set up.
J
oh well, I called about 30 min ago, but the dude said to leave my number and someone will call me back. I hope they do. I wonder what kind of boost I will see with the MMS pulley and a 3.4 pulley with this set up.
J
Originally Posted by frcefed98
275 oh well, I called about 30 min ago, but the dude said to leave my number and someone will call me back. I hope they do.
I wonder what kind of boost I will see with the MMS pulley and a 3.4 pulley with this set up.
J
oh well, I called about 30 min ago, but the dude said to leave my number and someone will call me back. I hope they do. I wonder what kind of boost I will see with the MMS pulley and a 3.4 pulley with this set up.
J
I called just a little while ago also and i talked to Wendy. My bracket should be to them by wed. and then hopefully they can get it out to me that friday or the following monday....... they are going to call me back later today to discuss my pulley sizes and see what we can do to reach my goals.
Later
Kyle
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From: Bellevue, Wa
I asked for 10psi at 6,000 rpm they sent me the 3.4. They were a little off obviously as I see the 10psi 1,000 rpm before that. This is on a P1-SC.
So since J is using a D1 I would say he is looking at 16psi with a 3.4 and an even bigger crank pulley. The SD crank pulley is 7.250.
With the mms combo he is looking at 56,000rpm on the blower at 6,000rpm. I assume he spins a bit higher so lets assume 6400rpm now he is at 60,000rpm on the blower. Only 2k shy of max impeller speed
So since J is using a D1 I would say he is looking at 16psi with a 3.4 and an even bigger crank pulley. The SD crank pulley is 7.250.
With the mms combo he is looking at 56,000rpm on the blower at 6,000rpm. I assume he spins a bit higher so lets assume 6400rpm now he is at 60,000rpm on the blower. Only 2k shy of max impeller speed
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From: Albuquerque, NM
Well, I won't be using the MMS pulley if I get this set up
SD was afraid that I was going to have clearance issues with the 6 rib s/c belt and water pump pulley....his reasoning is because the MMS pulley is so big? So I guess that will go up for sale.
Man decisions decisions.
J
SD was afraid that I was going to have clearance issues with the 6 rib s/c belt and water pump pulley....his reasoning is because the MMS pulley is so big? So I guess that will go up for sale.Man decisions decisions.
J
Originally Posted by Blackbird
I asked for 10psi at 6,000 rpm they sent me the 3.4. They were a little off obviously as I see the 10psi 1,000 rpm before that. This is on a P1-SC.
So since J is using a D1 I would say he is looking at 16psi with a 3.4 and an even bigger crank pulley. The SD crank pulley is 7.250.
With the mms combo he is looking at 56,000rpm on the blower at 6,000rpm. I assume he spins a bit higher so lets assume 6400rpm now he is at 60,000rpm on the blower. Only 2k shy of max impeller speed
So since J is using a D1 I would say he is looking at 16psi with a 3.4 and an even bigger crank pulley. The SD crank pulley is 7.250.
With the mms combo he is looking at 56,000rpm on the blower at 6,000rpm. I assume he spins a bit higher so lets assume 6400rpm now he is at 60,000rpm on the blower. Only 2k shy of max impeller speed
With SD Concepts spring tensioned 8 rib setup and were im going to shift my new motor i an just not sure what blower pulley size i want to go with....
If i am correct SD concepts doesnt make the blower pulleys ATI does and they only make the crank pulley and the spring tensioner. i called ATI today and they have quite a few pulley sizes to choose from.... 4", 3.85", 3.7", 3.4" and 3.2". They are the same price as the 6 rib pulleys so SD Concepts has them cheaper. I think im going to go with the 3.4" blower pulley also because i plan on shifting between 6600-6800 rpm's so i should see between 57,701 - 59,450 blower rpm's so it should work really well........... I hope this is it.......
Kyle
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From: Bellevue, Wa
8rib, stock motor with mildly ported heads, stage 1 if that, 212/218 .522/.529 114 cam, mac headers with cats. My blower will be at 52,500 at 6,000rpm so I am guessing 12psi.
can I ask you why you want to spin the motor so high? revs shorten the lifespan of the motor quite a bit. I would do the 3.2 blower pulley and only spin it to 6200 and enjoy the boost coming in even sooner than it will with the 3.4.
can I ask you why you want to spin the motor so high? revs shorten the lifespan of the motor quite a bit. I would do the 3.2 blower pulley and only spin it to 6200 and enjoy the boost coming in even sooner than it will with the 3.4.
Originally Posted by Blackbird
8rib, stock motor with mildly ported heads, stage 1 if that, 212/218 .522/.529 114 cam, mac headers with cats. My blower will be at 52,500 at 6,000rpm so I am guessing 12psi.
can I ask you why you want to spin the motor so high? revs shorten the lifespan of the motor quite a bit. I would do the 3.2 blower pulley and only spin it to 6200 and enjoy the boost coming in even sooner than it will with the 3.4.
can I ask you why you want to spin the motor so high? revs shorten the lifespan of the motor quite a bit. I would do the 3.2 blower pulley and only spin it to 6200 and enjoy the boost coming in even sooner than it will with the 3.4.
Kyle
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From: Bellevue, Wa
actually if I make good progress it may be just 2-3 weeks. I want to switch some stuff around and by then the clutch will be broken in.
bummer is I think I have some bad cats now
so that may delay things a bit or at the very least cost me some power on the dyno.
I will probably dyno it anyways even if I don't get them swapped by then.
J - it's sd-concepts@yahoo.com
BTW
a guy I know who just got the setup after seeing mine is making 10psi with the 3.7 pulley on a built 370 with stage III heads, pretty good sized cam, long tubes and no cats. I think it's safe to say he is getting no slip using that size pulley and still seeing 10psi
bummer is I think I have some bad cats now
so that may delay things a bit or at the very least cost me some power on the dyno.
I will probably dyno it anyways even if I don't get them swapped by then.
J - it's sd-concepts@yahoo.com
BTW
a guy I know who just got the setup after seeing mine is making 10psi with the 3.7 pulley on a built 370 with stage III heads, pretty good sized cam, long tubes and no cats. I think it's safe to say he is getting no slip using that size pulley and still seeing 10psi