04-16-2009, 11:51 AM | #1 |
Drives: 2009 Cobalt SS Turbo 97 tahoe Join Date: Apr 2009
Location: Colorado
Posts: 25
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Forced Induction on a DI 3.6L V6
For all of you wondering about the DI v6 . I own a 2.0 LNF Turbo charged Chevy Cobalt as it states in my sig. I have a few mods. Mainly just a tune.
These 2.0's put out 260/260 Stock. With a tune and just a couple bolt ons guys are putting down 330 WHP + 360FT trq on a 2.0 with mostly just a tune running around 22.5 PSI on a stock K04 turbo. I have a tune. Some guys are running 13.5's and some are even dipping into the high 12's on a FWD 2900 lbs car with less then half the displacement of the 3.6 running drag radials . The compression ratio of the DI LNF 2.0 is 9.2:1 The 3.6 DI is 11.3:1. Provided we crack the ECU for the new 3.6 L DI and add a turbo to it we are going to see HUGE numbers. With some aftermarket support I am guessing the new 3.6 DI will be known as well as the 2jz Supra engine .. Which handles boost very well.. With a good tuner and turbo I Imagaine the v6 to push around 450 - 500 HP+ with no problems. I am at 300HP on 340 Lbs trq STOCK on a 2.0 LNF so 300 HP from the 3.6 IS VERY conservative .. tune it and I bet we will be seeing 350 HP. Add a turbo and you will be seeing a lot more ... Just my 2 cents. I am thinking about trading in my Cobalt for a 2010 Camaro v6 just to put the turbo on it and turn it into a tuner. The old school v8 muscle bound people I think need to be open to the v6 - I know of MANY supras that will pile drive any vette or cobra on the streets. the Supras 2jz is a very well respected powerplant and all I am saying is the v6 isn't going to be a slouch by any means.
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Last edited by 09CobaltSS/Turbo; 04-16-2009 at 12:12 PM. |
04-16-2009, 12:04 PM | #2 |
i wont compare the 3.6Di to a 2JZ quite yet. as we dont know what the internals of the engine can handle. the 2JZ has pretty strong internals, thats why it can handle boost with ease. so to say that the 3.6 DI can push 450-500hp is hard. can it handle it with forged internals yes. but stock internals, thats the big ??????. i'm sure it can handle some decent power. oh and i believe the compression of the LNF is 9.2:1 not 10:1
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04-16-2009, 12:22 PM | #3 | |
Drives: 2009 Cobalt SS Turbo 97 tahoe Join Date: Apr 2009
Location: Colorado
Posts: 25
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Adding 2 more cylinders just means you are going to need an even higher pressure fuel pump along with some other things but DI technology allows you to run a good amount of boost efficiently without requiring top of the line forged internals because the fuel is injected into the cylinder similiar to diesels . A lot of trq to be had from DI ...
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04-16-2009, 12:36 PM | #4 | |
Drives: police interceptor Join Date: Nov 2008
Location: Austin, tx
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04-16-2009, 12:47 PM | #5 | |
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ur statement just accounts for fuel, u need to take in account how strong the block and internals are. lots of factors in trying to achieve high hp. not just fuel. I know my shit. I do lots of research on the competition. |
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04-16-2009, 01:06 PM | #6 |
Okie doke
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The good thing about DI is the ablitiy to put some boost in with a higher Compression Ratio .. It will be interesting to see what the limits are with the 3.6L. I'm thinking it will put up some pretty good numbers with a good tune, but I don't think you will see just over 400rwhp as a standard max until more research is done into fuel delivery etc ..
Crowley
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04-16-2009, 01:13 PM | #7 | |
Drives: 2009 Cobalt SS Turbo 97 tahoe Join Date: Apr 2009
Location: Colorado
Posts: 25
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Features found on the 3.6-liter VVT DI include: Aluminum engine block and cylinder heads Dual overhead cams with four valves per cylinder and silent chain primary drive High-pressure, engine-driven fuel pump Advanced multi-outlet fuel injectors developed to withstand high pressure and heat Stainless steel, variable pressure fuel rail Four-cam phasing (VVT – see description below) 11.3:1 compression ratio Aluminum pistons with floating wrist pins and oil squirters Polymer coated piston skirts Forged steel crankshaft Sinter-forged connecting rods Structural cast-aluminum oil pan with steel baffles Electronic throttle control with integrated cruise control Coil-on-plug ignition Advanced direct injection capable engine control module (ECM) Optimized exhaust manifolds with close-coupled catalytic converters Fully isolated composite camshaft covers Outstanding noise, vibration and harshness control Maximum durability with minimum maintenanceCommon manufacturing practices for efficiency and exceptional quality These are going to be your 2 limiting factors everything else is pretty well accounted for as far as being stock. Like I said we cobalt guys are limited to around 400 WHP and thats with a HUGE garett gt28R kit. Still a 2.0, Aluminum pistons on the 3.6 and Fueling .. I am sure with aftermarket this motor will be hitting 600 WHP . The cobalt has cast pistons and guys are pushing 400WHP with no problems, same with the soltice guys. The lag and SURGE is because of the high pressure DI and only just a short window of time to spray the fuel in .
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04-16-2009, 02:57 PM | #8 | |
Drives: 96 Bronco w/ a 5 speed Join Date: Mar 2007
Location: PNW
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04-16-2009, 03:35 PM | #9 |
Does not have a Camaro
Drives: 99 silverado Z71/66 Chevelle SS Join Date: Apr 2008
Location: Long Island, NY
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All this talk gets me excited. I used to frequent the cobaltss.net boards. I know of one guy who swapped a turbo on a LSJ block, IIRC it was running 400+ at the wheels. Glad to know we can apply some of the LNF tech to our engine.
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04-16-2009, 03:42 PM | #10 | |
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04-16-2009, 04:17 PM | #11 |
Go Blue!!!!!
Drives: 2012 Cruze LT Join Date: Mar 2009
Location: Indiana
Posts: 23,290
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260hp/260hp stock is about 220WHP roughly. So with a tune and a couple of bolts ons you can get about 110WHP? Those are some amazing numbers.
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04-16-2009, 05:12 PM | #12 | |||
Drives: 2009 Cobalt SS Turbo 97 tahoe Join Date: Apr 2009
Location: Colorado
Posts: 25
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Who ever said DI can cause problems and is hard to work with just doesn't understand the nature of the technology ... In fact more HP can be had a lot easier out of a DI engine VS FI engines with the right tuning capabilities. We 2.0 LNF DI guys have come to the fork in the road and that is we cannot access the Fuel tables wee need to tell the Direct injectors to squirt the fuel in any faster and the stock LNF DI's are what is limiting us but no worries HAHN has come up with a solution to add another fuel rail to the manifold causing the turbo to be almost 50% more efficient. A lot is to be learned from the LNF carrying over to the 3.6 DI ... Basically all the foot work will be done for you 3.6 L guys and the more people following the tuner scene the better. HPTuners will have the Camaros ECU cracked in no time at all I am sure of this .. If new pistons are even required to crack 500 WHP I would be suprised. GM has recently thrown down the gauntlet and we will be seeing 600WHP Cobalts and Solstices by the end of this year . I promise you that. GM has put a lot into these new platforms with the "tuners" in mind because ultimately High performance cars is what gets recognition in this world. The SKyline GTR was an awsome car so many people thought the new GTR to be of the same Caliber only to find the transmissions grenading etc etc One guy reporting 2000 dollar maintenance fees just to change the fluids in the thing ... IMO the V8's should just be phased out of the economy sports car market and only for the High end muscles like Vettes and Cobras .. NISSAN lost their asses on that car and now say the new Spec V GTR will not be released to Amercian because we "Aren't Ready for it" Yeah well f off Nissan we don't want your transmissions and you just disrespected America and car enthusiasts across the Globe. Just because of that ignorant statement I will never buy any foreign car or even think about buying a foreign car no matter how cool it may seem ( like a genesis coupe.) speaking of the genesis coupe they are slow heavy pigs and the 4 cyl version has way more potential then the v6 being a 4b11 BLOCK and the rest of the car is pretty well Hyundais parts ( heads etc ) the world motor is also founf in the Caliber SRT4 and ofcourse the Mitsubishi Lancer and we all know the EVOs can be 500 AWHP + very easily from a 4 cyl so a lot of competition in the market right now. GM has stepped up their game and understand what we want and expect from a V6 performance car given the NISSAN 350z only comes with a v6 that a lot of people super charge ( the DE motors Blow up pretty easily) and I am sure that GM's 3.6 will haul more ass then that they are at around 450 HP supercharged on a stock v6 FI DE motor... Mustang v6 twin turbo - 600 WHP ...... More like that just look on youtube ... v6's are lighter and more efficient with boost. Think about the Grand National GNX Here is some food for thought And how old is this car ? v6 turbo 25 years ago 500 HP .. I Love spanking bigger dispacement cars with a FI car..
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Last edited by 09CobaltSS/Turbo; 04-16-2009 at 05:25 PM. |
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04-16-2009, 07:22 PM | #13 | |||
Banned
Drives: 2003 Cobra Convertible Join Date: Feb 2009
Location: CA
Posts: 2,925
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V6 TT's are the future replacements of V8's, and rightfully so. I mean, what's the point of a V8 with V6TT's running around that are stronger and more efficient. I know you can TT a V8 as well and be capable of more than a V6 can throw at it, stock bottom end'ed turbo cobras run ~800 rwhp on pump gas, and over 1000 rwhp with fuel, but that's just rediculous. I'd buy a factory V6 turbo car to replace my cobra, if I had the money that is . |
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07-10-2009, 12:48 AM | #14 |
TURBO HUNTER!!!
Drives: 2010 Camaro Lt Vin #1974 Join Date: Jun 2009
Location: West Virginia
Posts: 607
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somebody has to know where to find a tt or regular turbo kit for the 3.6. if you guys know let me know so i can put one on my car..enough talk about it..ill do it if you guys can help me look..alot of people keep saying..'There is a thing called the search button" but i wouldnt be asking this question if i hadnt already searched for two weeks straight for one.lol..if any of you know anything send me a pm or a link or whatever..i went to capa. sent them an email asking for some info cause thats where everyone is saying the turbos and superchargers are being built. seen some great stuff but i dont want to order without some info on them..like if they will actually work on my car. and an estimated hp increase..6k is a ton of money for something that only gives 100 hp..so im looking for some good increase in hp..let me know any buying info you guys can come up with for the v6, ill put it on asap.
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