Guest prescience Posted December 19, 2006 Share Posted December 19, 2006 Just to give my opinion on the issues raised in the locked ForSale Vortech rev-up thread 1. IMO a higher flow than stock but NOT true dual is preferred for supercharging. This increases the overall flow at high revs but maintains sufficient back pressure at low revs to help with low down torque. Low down torque is not a major issue with TT, and back pressure is indeed bad news here, so it's best to maximise flow and minimise back pressure with a true dual. There's no need IMO to go overboard with anything larger than a 2.5" true dual for TT unless you are into super-high boost with a built motor. Jon, do you agree with this? 2. 10 hours labour or thereabouts with about 1 hours rolling road is what is required. At Abbey that equates to about £800. Bear in mind, Abbey and other similar installers will charge you a lot of hours to install gauges for some reason - not sure why, but they will Quote Link to comment Share on other sites More sharing options...
Baptist Posted December 19, 2006 Share Posted December 19, 2006 Yeah, I'd agree with that Dorian. Although with turbo's the bigger the pipe diameter the better really, zero back pressure is the aim. Although, 2.5" is plenty for lower boost applications. True dual isnt essential for superchargers, as stated. Best get the advice in as quick as possible, as this thread will no doubt get locked. Quote Link to comment Share on other sites More sharing options...
captint Posted December 19, 2006 Share Posted December 19, 2006 I trust you are getting plenty of deleting practice in these days bap Quote Link to comment Share on other sites More sharing options...
captint Posted December 19, 2006 Share Posted December 19, 2006 I know APS do a 2.5" zorst, I heard they do a 3.5" too, anyone heard it? Quote Link to comment Share on other sites More sharing options...
Baptist Posted December 19, 2006 Share Posted December 19, 2006 They do a 3" exhaust, and 3.5" turbo downpipes to compliment it. I hear it every time i drive my car, sounds amazing. Quote Link to comment Share on other sites More sharing options...
captint Posted December 19, 2006 Share Posted December 19, 2006 The 3.5"? Does it look similar to the HKS? Quote Link to comment Share on other sites More sharing options...
Baptist Posted December 19, 2006 Share Posted December 19, 2006 No, the 3". They dont do a 3.5", they do a twin 3" with optional 3.5" dowpipes that fit the turbo housing. Its a twin canister setup, slightly similar looking to the HKS I suppose. Quote Link to comment Share on other sites More sharing options...
captint Posted December 19, 2006 Share Posted December 19, 2006 Nice. What sort of sound, I assume loud, but is it a low growl or a high buzz. Dorian, whats the scoop with Gauges, how come the cost, surley it can't be that hard Quote Link to comment Share on other sites More sharing options...
Baptist Posted December 19, 2006 Share Posted December 19, 2006 Very very deep, gorgeous growl. Very loud as well. Quote Link to comment Share on other sites More sharing options...
captint Posted December 19, 2006 Share Posted December 19, 2006 Nice insight Cheers Quote Link to comment Share on other sites More sharing options...
Sarnie Posted December 20, 2006 Share Posted December 20, 2006 Just to give my opinion on the issues raised in the locked ForSale Vortech rev-up thread1. IMO a higher flow than stock but NOT true dual is preferred for supercharging. This increases the overall flow at high revs but maintains sufficient back pressure at low revs to help with low down torque. Low down torque is not a major issue with TT, and back pressure is indeed bad news here, so it's best to maximise flow and minimise back pressure with a true dual. There's no need IMO to go overboard with anything larger than a 2.5" true dual for TT unless you are into super-high boost with a built motor. Jon, do you agree with this? 2. 10 hours labour or thereabouts with about 1 hours rolling road is what is required. At Abbey that equates to about £800. Bear in mind, Abbey and other similar installers will charge you a lot of hours to install gauges for some reason - not sure why, but they will Is the DC zorst a good combo with the SC? Is the price for the SC a fair one or not? Quote Link to comment Share on other sites More sharing options...
Removed Posted December 20, 2006 Share Posted December 20, 2006 you won't find a Vortech here in the UK for £3k. Even with shipping at £200 imo it's still a bargain. Quote Link to comment Share on other sites More sharing options...
captint Posted December 20, 2006 Share Posted December 20, 2006 Found one in the States for $3500 which is £1785 smackers Quote Link to comment Share on other sites More sharing options...
Sarnie Posted December 20, 2006 Share Posted December 20, 2006 Found one in the States for $3500 which is £1785 smackers Now your confusing things Quote Link to comment Share on other sites More sharing options...
ir_fuel Posted December 20, 2006 Share Posted December 20, 2006 and how much shipping? Quote Link to comment Share on other sites More sharing options...
Guest prescience Posted December 20, 2006 Share Posted December 20, 2006 Found one in the States for $3500 which is £1785 smackers Complete kit or tuner? i.e. EMS included? Quote Link to comment Share on other sites More sharing options...
captint Posted December 20, 2006 Share Posted December 20, 2006 Complete kit + pulley and injectors, 10K of use, good deal? Quote Link to comment Share on other sites More sharing options...
Removed Posted December 21, 2006 Share Posted December 21, 2006 we are talking new stuff here Quote Link to comment Share on other sites More sharing options...
Guest prescience Posted December 21, 2006 Share Posted December 21, 2006 I have checked out the link and note that it is for a G35. IIRC the G FMU has a different pressure rise rating compared to the Z one is 7:1 and the other is 8:1 I think. I think this is a simple change to make but you would need to speak to Vortech on ask on my350Z. Come to think of it, you'd need to check that the SS Box uses the same map for Z vs G - I suspect not. Personally, I would go cautiously Quote Link to comment Share on other sites More sharing options...
captint Posted December 21, 2006 Share Posted December 21, 2006 Dorian Did you use abbey to get yours done Quote Link to comment Share on other sites More sharing options...
captint Posted December 21, 2006 Share Posted December 21, 2006 So would an HKS True dual setup be a bad idea with a S/c Quote Link to comment Share on other sites More sharing options...
Baptist Posted December 21, 2006 Share Posted December 21, 2006 Not at all, I wouldnt get too hung up single or true dual for a supercharger, any good flowing exhaust will be fine. Its only really important on twin turbo setups. Quote Link to comment Share on other sites More sharing options...
Guest prescience Posted December 21, 2006 Share Posted December 21, 2006 Apparently it was only the older kits which had a different FMU set-up for G vs Z. They have now standardised (according to Booger - and he will know) at 6:1 .... see here http://www.my350z.com/forum/showthread. ... ost2723574 Yes, Abbey did mine and no tuning is required generally. However, mine had a corrupt map and they had one hell of a job getting their laptop talking to the SS box when they tried. I had told them several times that they needed a serial EXTENSION cable for the job since standard serial cables usually swap pins 2 and 3 and will not communicate. Make sure if you go there and want it tuned you get both types of cables for them Quote Link to comment Share on other sites More sharing options...
captint Posted December 21, 2006 Share Posted December 21, 2006 By tuned how do you mean, past the 400 mark or up to? Quote Link to comment Share on other sites More sharing options...
Guest prescience Posted December 22, 2006 Share Posted December 22, 2006 By tuned how do you mean, past the 400 mark or up to? Stock map, Voretch says, delivers 412 peak BHp at redline. I believe that is over inflated and 390-398 is about the range i.e. just less than 400. All the UK dynos I have seen support this - I adjusted my figures from Abbey down by 5% (i.e. fly == wheel + 12%) and that broguht me into that range. To answer your question, the stock map is very rich at the top end running a high 9 or a low 10 AFR. You can quite safely tune that to low-mis 11s (even with the Z's compression ratio) and reckon to achieve an additional 30BHp or thereabouts. Whether that is wise since you would be putting about 430 barake through a stock motor is debatable but since it is top end and torque is lower compared to TT, there is not the same risk as running that peak with TT IMO - lack of Vortech-related engine breakages worldwide supports this since you'd struggle to find a US guy who didn't tune the unit. The SplitSec box, although older technology, is quite capable of running the Vortech at those power levels despite what anyone else would have you believe. Quote Link to comment Share on other sites More sharing options...
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