Dubcharged

Now how did you guess that one?? :lol: We've recently begun mapping for obd-2 applications. Supercharged VR6's are very tasty indeeeeed :D

Hi guys, Just would like to know how many of you have supercharged your VR6's or are thinking about it?? Reason i ask is cos we've got a special little something under development to compliment this major mod. :roll:

Jon: At idle the gauge should be cycling and will be erratic. When you come off ful throttle, the gauge will register your max fuelling for a couple of seconds until idle is stabilised again. So no, you dont have a problem :D

Munkay: You posted at 4:38am ?!?!? I check the forum quite often but you my friend take the biscuit (lol) Let me know if you want the gauge, i'll reserve it for ya :D

Hey Barrie, nice to hear its doing its job! Have you tried a non-SNS chip to see the difference with the No Lag coding?

Its not under normal driving but its when you go 80%-100% full throttle, the ECU will sense boost/map switch and the induce open loop mode. The fuelling would then go to the preset map value and if using the 3.5bar reg on a 3bar chip, the injectors will squirt more fuel per pulse than was accounted for. :( Oh, and the ecu will have a harder job adjusting under normal driving too since the idle map will be for 3bar fpr too.

Or you can get the FPR from me together with the chip :D

leew: Good on ya, i'm glad you're happy with your investment. There's nothing better than spending money on the car and feeling the difference! G60: Why don't you send your Charger to KK by post?

A 65 should be giving you at least 14psi. Just take a nice relaxed cruise to KK, maybe stick a bigger pulley on it first? Those guys are good at their game. :D

oooh, you're using a 65 with a chip you don't know much about!! You're a brave man :shock: Whats your peak boost at the mo? You're correct about the remap, it would be just an upgrade fee if you already have the Stage 5. You can get an SNS chip from Kompressor Kanada up there in your neighbourhood :D

Leew: Power figures vary from car to car. There's a dyno on the US SNS site http://www.snstuning.com/chiptuning.htm Bare in mind the figures at At the Wheels. Also this is from the older generation Stage 4 chips, we've moved on from there. :D Should have some new dyno's from a few G60's soon. As i've said before, its not just peak power thats important, its the delivery and response which is equally if not more important.

Well, with a cam and ported head you might get flow up to 6.2k. Depends on the amount of work done, i'm not one for flowing the 8v head, but a cam would be a good add on. As far as i'm concerned its all about Mid to top, not just top end. With a 68mm pulley, the charger can be taken to 6.5k engine rpm and it will remain within its design limits. Obviously age and condition plays a part, a ported charger is more reliable since internal pressure is relieved. Stick with the 68mm and with proper fuelling you'll be surprised at the response!

Thats true the head stops flowing past 6k, however if the power curve drops off with less magnitude than the power curve rises to 6k, then it would be beneficial in terms of eg 0-100 time to pull the car to 6.3k rpm. If you shift past 6k, you're higher up the power curve in the next gear. Best thing would be to time a quarter mile by shifting at 6k, then at 6.5k. The need for the 3.5bar FPR and matched chip isn't just for after 6k, its for the complete range since more aggression can be extracted from the motor, especially in the mid-range. It should be stonking from 4.5k upwards to 6k. Again, they way your car responds to taking it over 5k depends on the map used. I wouldn't advise you to go over 6k with a map made for the standard FPR, i wouldnt even be comfortable taking it over 5.5k since those injectors would be having a hard time coping. Save those pistons :(

Thats because most suppliers haven't taken the time to do some serious development work on the G60's. By using the standard FPR, the injectors will reach full duty cycle by 6k and the power delivery will not be as aggressive as is possible when the map is optimised for a 3.5bar FPR. Even if you "bolt on" a 3.5bar FPR to one of these chips, you wont gain anything since the map was written for the standard pressure. :?

If you reroute the bypass to under the car so it vents into atmosphere without obsruction then it wont be noisy. You'll get a nice blow off sound on gear change when booting it!

None, the throttle body has its own bypass butterfly which does the job! I've taken out the plastic bypass hose to the charger which the ISV and breather connect to. The small rubber u-bend is still on the underside of the throttle body, i've just turned it away from pointing to the engine bay.

That looks a lot better! Might have to try it myself!

8vg60 is correct, generic of the shelf chips aren't as good as custom remaps. However, the difference between a good "of the shelf chip" and a remap would probably be 5-10 bhp at most depending on engine mods. You have to remember that custom remaps are simply a base code tweaked at some load points to get the best possible from the motor. We write maps for specific mods and then tweak on customers choice and feedback. 8)

There's nothing quite like the howl of a G60 :D

Performance won't be affected since under Wide Open Throttle the ECU goes into Open Loop mode where the Lambda is not used. There are a few sites on the web which show how you can make your own, do a search with google.

Thanks G60Jet, i'll take a look.

Hi Guys, Just a quick warning to anyone with a short shift. I went out last night for thrash after getting my charger ported. Got to some traffice lights and went to take the car out of gear then.....pop! the cable came off the BBM short shift lever :shock: Basically the puny circlip holding the cable on just popped off. Easy to fix but a bit of an arse being stranded in the middle of a road waiting for my mate to tow me. :roll: Might be an idea for anyone who has a short shift to put a cable tie around the lever and Cable, so in the event of the circlip popping off at least the cable will be held back by the tie. Right, time to wax the car and then test out a generation 2 30lb injector map :D 8)

Another filter on the other side but i've rerouted it so that its away from engine heat. Just use a PTFE spray to lube the charger every now and then.

Check your blocked off aperature just in case. I've removed the complete bypass system, the oil vapours from the breather dilute the octane in the petrol while mixing. Also, the oil coats the insides of your intercooler and boost tubes. Its debatable whether or not the oil vapours are needed for the charger (it has its own oil feed line). But spray some PTFE spray into the charger every now and again just in case. 8) Secondly the recirculated air is pre-heated and so you're adding to the heat of the charger and heat soaking your intercooler. :cry: Just my two cents/pence

Ive removed the canister on my Rallye, took out the fog lamp and put a scoop there with some ducting routing up to the aperature where the canister was. The more cold air you have, the better it will be. You wont lose anything from trying it.