mattysupra Posted February 22, 2008 Share Posted February 22, 2008 Hello everyone, since i have a new project ( RS6 Twin Turbo 4.2 V8 ) i want more power. Its been mapped to 512bhp & 513ft lb. Now the car is restricted to go much more by the manifolds. ( i want 650bhp minimum! ) So i can have better manifolds made ( mtm want 30k! yes 30 grand )Now there is no way in the world i would pay this! I know things are very tight and the manifold would have to be something else and to be fair every one i have spoken to cant make one to fit! So my idea is to scrap the twin turbos, which will give me loads of room for my new exhausts ( V8 ,so two ) Instead of them i want to fit a proper supercharger on top of the engine. Now as the engine is low compression and my turbos are already pushing 17psi i guess i can run a safe 20 psi out of the charger. The problem is that nobody has run more than 600bhp out of a standard rs6 block and know one has supercharged one either, so i dont know how much it will take. But im willing to find out. Anyway what do you lot think? Good plan or should i stay with the turbos and mount them somewhere else? like under the car or something? Quote Link to comment Share on other sites More sharing options...
SteveR Posted February 22, 2008 Share Posted February 22, 2008 Adventurous!! I wish you luck! Quote Link to comment Share on other sites More sharing options...
n boost Posted February 22, 2008 Share Posted February 22, 2008 Personally i would stay with turbos and do something along them lines. Supercharger you will be going in head first if no one else has done it and so u dont know what that cost/results of that will be. Also pushing the block to its limits will be risky business as they ain't gona be cheap if something goes wrong. What about the value of the car with supercharger? 30k for manifolds is a joke, i'd rather buy the equipment and make them myself LOL! You could always do a engine transplant for that amount and supercharge another engine etc. Quote Link to comment Share on other sites More sharing options...
mattysupra Posted February 22, 2008 Author Share Posted February 22, 2008 Personally i would stay with turbos and do something along them lines. Supercharger you will be going in head first if no one else has done it and so u dont know what that cost/results of that will be. Also pushing the block to its limits will be risky business as they ain't gona be cheap if something goes wrong. What about the value of the car with supercharger? 30k for manifolds is a joke, i'd rather buy the equipment and make them myself LOL! You could always do a engine transplant for that amount and supercharge another engine etc. For 30k you can do alot normally, Anyway i have a spare lump to hand:) but nobody has done more than 600bhp out of one either so im a guinea pig either way. nboost your ony about 1/2 a mile away from me. Maybe you should have a look under the bonnet and see what im talking about? Quote Link to comment Share on other sites More sharing options...
JustGav Posted February 22, 2008 Share Posted February 22, 2008 Can you not get a set of turbo's which are slightly bigger, do you know what format the stock ones use? You may be able to get a bigger set of blowers in there. I personally thinking going along the lines of a supercharger could be interesting... stick with both and have a hybrid system Quote Link to comment Share on other sites More sharing options...
Gaz Walker Posted February 22, 2008 Share Posted February 22, 2008 Good luck. I don't know anything about RS6's other than I want one, so I wish you well Gaz. Quote Link to comment Share on other sites More sharing options...
mattysupra Posted February 22, 2008 Author Share Posted February 22, 2008 Can you not get a set of turbo's which are slightly bigger, do you know what format the stock ones use? You may be able to get a bigger set of blowers in there. I personally thinking going along the lines of a supercharger could be interesting... stick with both and have a hybrid system There is really no room. I cant get one finger between the engine and chassis anywhere. You cant even see the tubs from below or above! I would love to stick some bigger tubs under there but cant even get the exhaust gas out of the engine due to lack of space. Put it this way, you even have to take bits of the engine off to get to the oil fill. I will get a picy for you! Quote Link to comment Share on other sites More sharing options...
mattysupra Posted February 22, 2008 Author Share Posted February 22, 2008 Good luck. I don't know anything about RS6's other than I want one, so I wish you well Gaz. You fancy having a play with it? Quote Link to comment Share on other sites More sharing options...
JustGav Posted February 22, 2008 Share Posted February 22, 2008 What about looking at one of the W series engines... I'm going purely on ideas and not practicallity here. I do however find out something I didn't know about the bugatti engine As 18 is not dividable by 4, you know the W-18 is not derived from VR engines. In fact, it follows the old Audi philosophy of mating 3 banks of 6-cylinder, running the common crankshaft. The drawback is: among the 3 banks there are 2 large Vee angles. My estimation is 60° each, hence a total of 120°. For comparison, the W16 is just 15/2 + 72 + 15/2 = 87°, therefore the W-18 is a lot wider. In terms of length, the W16 has the same length as a VR8, that is, about the length of 5 cylinder. The W-18 is as long as an inline-6. As seen in the photo, the W-18 used by Bugatti EB-218 concept car is very big and complex. Two of the banks mate like a conventional 60° V6 while the remaining bank lays down to horizontal level. Complex induction manifolds and exhaust pipes run between the banks. (note that the exhaust pipes were not fitted to this prototype, otherwise it would have looked even more complex.) Obviously, W-18 is not as clever as W-16. Although there is no problem of fitting in the jumbo Bugatti saloon, I must question its purpose. Is it more powerful than a V12 can achieve ? No. Is it smoother than the theoretically ideal V12 ? No. Is it shorter than a V12 ? No. Is it narrower than a V12 ? On the contrary. Is it cheaper to be built ? Never. No wonder Volkswagen eventually decided to terminate the W18 project. Quote Link to comment Share on other sites More sharing options...
n boost Posted February 22, 2008 Share Posted February 22, 2008 For 30k you can do alot normally, Anyway i have a spare lump to hand:) but nobody has done more than 600bhp out of one either so im a guinea pig either way. nboost your ony about 1/2 a mile away from me. Maybe you should have a look under the bonnet and see what im talking about? Where abouts are u mate? Woud'nt mind a peep. Have you thought about a single turbo as that would free up some space and the 4.2 v8 should spool the turbo nicely. Quote Link to comment Share on other sites More sharing options...
mattysupra Posted February 22, 2008 Author Share Posted February 22, 2008 Quote Link to comment Share on other sites More sharing options...
Gaz Walker Posted February 22, 2008 Share Posted February 22, 2008 That looks proper evil Quote Link to comment Share on other sites More sharing options...
mattysupra Posted February 22, 2008 Author Share Posted February 22, 2008 Where abouts are u mate? Woud'nt mind a peep. Have you thought about a single turbo as that would free up some space and the 4.2 v8 should spool the turbo nicely. You really need to see the engine to suggest a single! For one its a V8 and it has a turbo for each side of the engine! Anyway, im on redstone, top of gospal way. 3 doors from the off licence:eyebrows: Your near the dogs are you not? Quote Link to comment Share on other sites More sharing options...
mattysupra Posted February 22, 2008 Author Share Posted February 22, 2008 That looks proper evil o yes it is, but if i showed you the dino at over 500bhp and over 500 ft lb and then said take it out, you would bring it back saying the brakes are stuck on or somebody stole the turbos. Its just not quick enougth! I want faster. Or at least more power to the rear wheels! Still it will still leave a standard supra standing and i would guess any supra below 450 bhp. Apart from in the wet! Then the rs is in its own league:eyebrows: Quote Link to comment Share on other sites More sharing options...
AshBhp Posted February 22, 2008 Share Posted February 22, 2008 Is there appropriate room for the turbos to be mounted under the car? If so that would be an idea. Quote Link to comment Share on other sites More sharing options...
mattysupra Posted February 22, 2008 Author Share Posted February 22, 2008 ash, maybe a single! but that no good, and yes there is loads of room near the boot. But im not sure about the lag etc with them being 10 feet away from the engine:blink: And then im not sure if there is room for the exhaust and the charge pipes to run through the same gap upto the engine. We will have to see! Quote Link to comment Share on other sites More sharing options...
bignum Posted February 23, 2008 Share Posted February 23, 2008 And what about oil drain back to the sump, forget it, buy a faster car. Quote Link to comment Share on other sites More sharing options...
mattysupra Posted February 23, 2008 Author Share Posted February 23, 2008 And what about oil drain back to the sump, forget it, buy a faster car. what car would you suggest instead? Quote Link to comment Share on other sites More sharing options...
Si.Supra Posted February 23, 2008 Share Posted February 23, 2008 Hey matey just read the thread my friend is wanting to get one of these by the end of year, Thats quite a bit of horsepower already could you not utilise it better, shed a few pounds of that beast or change the gearing set up, I'll be honest I aint no mechanic but its what popped into my head lol. Quote Link to comment Share on other sites More sharing options...
tbourner Posted February 23, 2008 Share Posted February 23, 2008 Put the turbos in the passenger footwell. Quote Link to comment Share on other sites More sharing options...
AndyT Posted February 23, 2008 Share Posted February 23, 2008 http://www.monkfishperformance.co.uk/ These people did the outstanding work to JamieP's V8. Maybe worth a chat. Quote Link to comment Share on other sites More sharing options...
mattysupra Posted February 23, 2008 Author Share Posted February 23, 2008 Hey matey just read the thread my friend is wanting to get one of these by the end of year, Thats quite a bit of horsepower already could you not utilise it better, shed a few pounds of that beast or change the gearing set up, I'll be honest I aint no mechanic but its what popped into my head lol. If i lost some of the weight it would make a big improvement but i want to keep all the crap it has inside! And im thinking of putting a manual gearbox in and getting rid of the crappy flappy paddle things. Only problem is that i cant find a gearbox that is strong enough that will fit! Quote Link to comment Share on other sites More sharing options...
bignum Posted February 23, 2008 Share Posted February 23, 2008 what car would you suggest instead? A decent single supra should do it, Quote Link to comment Share on other sites More sharing options...
tbourner Posted February 23, 2008 Share Posted February 23, 2008 what car would you suggest instead? http://www.exoticcars.ws/cars/bugatti-veyron-front.jpg ? http://www.tencylinders.com/3/SRT10_RAM/2004_Dodge_Ram_SRT10.jpg + ? Quote Link to comment Share on other sites More sharing options...
bignum Posted February 23, 2008 Share Posted February 23, 2008 http://www.exoticcars.ws/cars/bugatti-veyron-front.jpg ? http://www.tencylinders.com/3/SRT10_RAM/2004_Dodge_Ram_SRT10.jpg + http://www.boatnerd.com/news/newpictures03/TURBO-83-22-03-al.jpg ? lmao, Quote Link to comment Share on other sites More sharing options...
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