boyracer 0 Posted November 13, 2008 Report Share Posted November 13, 2008 hello guys my first post on the forum, im from south-africa, but moving to the uk next year. ill be returning to SA and then i want to supercharge my vr6. What supercharge would you guys suggest? i red allot about the vortech chargers but looks like they not going to meet my power figures im looking for, as im anyways going to rebuild the engine with forged internals and ill be running standalone mangement aswell, but i don't know if the rotrex is the better option or if the vortech is?vortech seems to be giving problems running at high boost.what else should i look out for when building such a high powered vr6? thanks guys info much appreciated Link to post Share on other sites
H13VYY 0 Posted November 13, 2008 Report Share Posted November 13, 2008 iv never known a supercharged vr6 hitting 450bhp. you should go turbo if your looking for that much power. Link to post Share on other sites
Kelster 0 Posted November 13, 2008 Report Share Posted November 13, 2008 Speak to Storm they reckon their stage 2 kit is 310-450 BHP.STORM Link to post Share on other sites
craggsy 91 Posted November 13, 2008 Report Share Posted November 13, 2008 iv never known a supercharged vr6 hitting 450bhp. you should go turbo if your looking for that much power.You not seen Jakes then......all be it a 3.2 24v version its still a vr6 Link to post Share on other sites
boyracer 0 Posted November 13, 2008 Author Report Share Posted November 13, 2008 don't want to go the turbo route as i need power through the rev range want to do a bit of track racing, turbo doesn't work all to well round corners with the boost Link to post Share on other sites
boyracer 0 Posted November 13, 2008 Author Report Share Posted November 13, 2008 im planning on going to 3l 12v with a charger Link to post Share on other sites
Phat VR6 3 Posted November 13, 2008 Report Share Posted November 13, 2008 iv never known a supercharged vr6 hitting 450bhp. you should go turbo if your looking for that much power.You not seen Jakes then......all be it a 3.2 24v version its still a vr6If where honest its not, Its 400cc bigger, got 12 more valves and still short by 20bhpI think alex's was around 400-450 when he was running 20psi on the rotrex Link to post Share on other sites
rodney 17 Posted November 13, 2008 Report Share Posted November 13, 2008 yup rotex all the way for those figures......things to look at.. (in no order off my head, if you havent already of couse decided)Lower compression engine with Cams and PistonsGood Exhaust and manifold system for that level of flowintercooler vs charge cooler for your needsfuel pump and pipes4" MAF?standalone may be better than a remaptraction control4 wheel drive???clutch upgrade.Oil coolerBIG brakessuspension/bushes/mounts/braces/rollbarsso just build from scratch then.... Well as you go and discover stuff keep us all up to date Link to post Share on other sites
Eat this 2 Posted November 13, 2008 Report Share Posted November 13, 2008 i wouldnt go 3l personally the walls are just too thin + you wont gain much at all vortech arnt what your looking for if your after 450 hp mate im running 12 psi and 320 and thats on the limit due to belt slip i know of 1 12v vr6 running 400 hp with a rotrex but i dont know of any1 running a vortech at more than 320 hp the charger will take more boost but the belt tension would have to be stupid Link to post Share on other sites
boyracer 0 Posted November 14, 2008 Author Report Share Posted November 14, 2008 Thanx guys for the info, ive decided ill go with the rotrex charger, so you suggest to go to 2.9l? How much will forged rods and pistons set me back in the uk? Really appreciate the info think i found my new home truely awesome forum this Link to post Share on other sites
Eat this 2 Posted November 14, 2008 Report Share Posted November 14, 2008 id leave it at 2.8 mate its more relaible and long lasting than the 2.9l for the same reasonregarding price things are usually cheaper in the states not always but normally Link to post Share on other sites
boyracer 0 Posted November 14, 2008 Author Report Share Posted November 14, 2008 I came to that conclusion aswell you pay £800 for pistons and in the states you pay $800 for the same pistons, something thats always interested is a vr6 with itb's anyone on the forum got experience with it? Link to post Share on other sites
xyber 1 Posted November 14, 2008 Report Share Posted November 14, 2008 Bit of a one-stop shop here, their chargecooler setup and short runner well worth a look http://www.spturboparts.com/aftermarket/index.aspx Link to post Share on other sites
J5KE F 0 Posted November 14, 2008 Report Share Posted November 14, 2008 for the cost of spending on the 12v and imo unrelaibly enlarging the piston size, and extensive internal works you would do better with a 24v lump, in the 1st place. until my 3.2 engine i have had 2 vr's, 2x 2.8 lumps and 2x 2.9's and in all honesty, the decent 2.8 made more power.I would advise to sell the 2.8 & search for a 3.2 which is ultimately far more tunable and loves the rotrex Jake Link to post Share on other sites
rodney 17 Posted November 14, 2008 Report Share Posted November 14, 2008 of course if you are feeling brave then there is this........http://www.vr6oc.com/e107_plugins/forum/forum_viewtopic.php?255473.10#post_256565 Link to post Share on other sites
boyracer 0 Posted November 16, 2008 Author Report Share Posted November 16, 2008 thanks guys for all the info i think im going to go to the 24v motor first and then slap on a rotrex Link to post Share on other sites
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