Vortec27 Posted March 4, 2013 Posted March 4, 2013 Hi all As I'm wanting a bit more boost I am thinking of change my pulley size to 3:12 or 2:87 what I need to know is on the v2 sc system is it the tooth cog one I have to change for more boost ? Ps any links welcome Thanks vortech Quote
Keyser Posted March 4, 2013 Posted March 4, 2013 No Mate it's the front ribbed pulley you change down to a 3.12 or 2.87 You can change the toothed pulley setup but most don't. About 1-2psi increase for each step down. Watch the jack shaft speeds at less than a 2.87 as they exceed manufactures spec at top rpm Quote
Sam Mcgoo Posted March 4, 2013 Posted March 4, 2013 No Mate it's the front ribbed pulley you change down to a 3.12 or 2.87 You can change the toothed pulley setup but most don't. About 1-2psi increase for each step down. Watch the jack shaft speeds at less than a 2.87 as they exceed manufactures spec at top rpm What he said. Quote
Vortec27 Posted March 5, 2013 Author Posted March 5, 2013 (edited) No Mate it's the front ribbed pulley you change down to a 3.12 or 2.87 You can change the toothed pulley setup but most don't. About 1-2psi increase for each step down. Watch the jack shaft speeds at less than a 2.87 as they exceed manufactures spec at top rpm Ok thanks bros lol. Anyone got any links / part numbers for the pulley that's needed ? Is it the Serpentine-6 Groove, 2.87 in Thanks vortec Edited March 5, 2013 by Vortec27 Quote
Vortec27 Posted March 5, 2013 Author Posted March 5, 2013 Also what size belt is needed for 2:87 / 3:12 Quote
Vortec27 Posted March 5, 2013 Author Posted March 5, 2013 Also are they safe to run on stock block ? Thanks vortec27 Quote
Keyser Posted March 5, 2013 Posted March 5, 2013 I use a few suppliers for Vortech parts and local car parts place can get the Gates belts, you could drop Tarmac a PM he may be able to help Also used these guys but delivery will take a while http://www.superchargersonline.com/index.php?main_page=index&cPath=510_1071_1073_1305_1310 Also what size belt is needed for 2:87 / 3:12 That depends on your setup, how many pulleys you have and Gen1 or Gen2 - http://www.superchargersonline.com/index.php?main_page=product_info&cPath=510_1153_1316&products_id=5012 http://www.superchargersonline.com/index.php?main_page=product_info&cPath=510_1153_1316&products_id=5011 Whatever belt you run on with the 3.33 you will need 0.5" shorter for the 2.87 pully (I Think thats correct) Also are they safe to run on stock block ? Thanks vortec27 Depends how far you push it, what supporting Mods and who / how it is mapped in, last year I bought a 350z with a blown engine, when we pulled the VQ lump out we found 5 smashed pistons That was just running an after market ECU with a bad a map - was really quick ..................................................... until it destroyed itself! So it's only safe if you do it right!! Quote
The Chubby Ninja Posted March 5, 2013 Posted March 5, 2013 According to the company i ordered mine from you will need a 79inch 6 rib gates belt for the 3.12 or the 2.87 pulleys Quote
Vortec27 Posted March 5, 2013 Author Posted March 5, 2013 (edited) Hi peeps thanks for the info my vortech is the V2Sc trim full system nontuner kit . I think lol will look later . Mgt racing fitted my vortech. Edited March 5, 2013 by Vortec27 Quote
Vortec27 Posted March 5, 2013 Author Posted March 5, 2013 Hi cubs who did you get it from post link plz ? Quote
Vortec27 Posted March 5, 2013 Author Posted March 5, 2013 Engine is stock apart from exhaust y- pipe & sport cats also about to order 5/16 space lol Quote
Vortec27 Posted March 7, 2013 Author Posted March 7, 2013 (edited) That depends on your setup, how many pulleys you have and Gen1 or Gen2 - http://www.superchargersonline.com/index.php?main_page=product_info&cPath=510_1153_1316&products_id=5012 http://www.superchargersonline.com/index.php?main_page=product_info&cPath=510_1153_1316&products_id=5011 Whatever belt you run on with the 3.33 you will need 0.5" shorter for the 2.87 pully (I Think thats correct) Also are they safe to run on stock block ? Thanks vortec27 Depends how far you push it, what supporting Mods and who / how it is mapped in, last year I bought a 350z with a blown engine, when we pulled the VQ lump out we found 5 smashed pistons That was just running an after market ECU with a bad a map - was really quick ..................................................... until it destroyed itself! So it's only safe if you do it right!! Hi mate I think its the 3 pulley setup Edited March 7, 2013 by Vortec27 Quote
Vortec27 Posted March 7, 2013 Author Posted March 7, 2013 According to the company i ordered mine from you will need a 79inch 6 rib gates belt for the 3.12 or the 2.87 pulleys Hi chubs what year is you z ? mine a 2004 Quote
Sam Mcgoo Posted March 7, 2013 Posted March 7, 2013 If you haven't already, read this thread - http://my350z.com/forum/forced-induction/270770-vortech-faq-read-this-before-asking-vortech-questions.html 1 Quote
Vortec27 Posted March 8, 2013 Author Posted March 8, 2013 I'm not sure what size to get gen1 or gen2 I think mine Is a 3 pulley setup so is that gen1 ? Quote
Vortec27 Posted March 8, 2013 Author Posted March 8, 2013 Anyone know if the 3 pulley bracket setup is gen1 ? Quote
Vortec27 Posted March 9, 2013 Author Posted March 9, 2013 Hi. All found out my setup is the first setup so it's gen1 . But from what I've been reading on belt sizes for the 3:12 pulley some say 93.5" and others say 93" is there anyone that can confirm ? Quote
The Chubby Ninja Posted March 9, 2013 Posted March 9, 2013 mine must only be 79" as its the v3 and must be a different setup. as for the 93 and 93.5 i dont think it will matter as the half inch can be taken up with the tensioner. Quote
Vortec27 Posted March 9, 2013 Author Posted March 9, 2013 It all about what way you route the belt Quote
wizard Posted March 10, 2013 Posted March 10, 2013 Think I use a 2034mm GATES belt for 3:13 pulley size. You will probably snap, shred and a pop a few belts before you get it right. I certainly did. Quote
wizard Posted March 10, 2013 Posted March 10, 2013 (edited) Some say 93.5" others say 93" lol Yeah it all depends really. I like it tight though... REAL tight! (disclaimer: do NOT overtighten, you will shred it!) Edited March 10, 2013 by wizard Quote
Vortec27 Posted March 10, 2013 Author Posted March 10, 2013 Some say 93.5" others say 93" lol Yeah it all depends really. I like it tight though... REAL tight! (disclaimer: do NOT overtighten, you will shred it!) Mate what setup you got Gen 1 Gen2 ? Quote
Vortec27 Posted March 12, 2013 Author Posted March 12, 2013 http://www.superchargersonline.com/index.php?main_page=index&cPath=510_1071_1073_1305_1310 That depends on your setup, how many pulleys you have and Gen1 or Gen2 - http://www.superchargersonline.com/index.php?main_page=product_info&cPath=510_1153_1316&products_id=5012 http://www.superchargersonline.com/index.php?main_page=product_info&cPath=510_1153_1316&products_id=5011 Whatever belt you run on with the 3.33 you will need 0.5" shorter for the 2.87 pully (I Think thats correct) Also are they safe to run on stock block ? Thanks vortec27 More info plz lol. so the 93 inch would that be the outer size or iner size for a Gen 1 v2sc ? Thanks Quote
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