Turbo 4 cyl ECOtecs, taking on Blown V8s

[racy]

Full Link here: http://tunersource.gmblogs.com/blog/...-any-blown-v8s

First, let’s break down what Don went up against. The class he ran in is the Top Dragster class. Now this class is primarily dominated by old-school, big-block and small-block motors that are supercharged or spraying nitrous. Normally to qualify in this class with these big-displacement engines, you need something like a 7.10-second elapsed time.
Yeah … VERY FAST!

Now here comes Don's turbocharged ECOtec four cylinder. Not only did he raise some eyebrows, but he was definitely seen as a big underdog. By the way, this was the first turbocharged car to ever run in this class, let alone a turbocharged four cylinder! Qualifying took place Friday and Saturday and not only did Don come in and qualify, but he also did it with a 6.67-second run at 199 mph. This garnered him the number six spot out of 39 cars.

For those interested in drag racing and the pure power being produced by modern turbo 4 bangers - and in particular, GM's 4 banger.

[bouda]

Crazy.

[CobaltSScrazy]

attack of the 4cylinder bwhahaha lol.

CobaltSScrazy

PS: Can't wait for the TURBO!

[hrcslam]

No way Toyota and Honda would anialate anything GM has ever built or will ever will build, for ever and ever. I told you the V-8's suck, if a GM 4 banger POS ECOtec can run with them the Toyonda will kill them. All I need is a Supra and $1500 in mods and I'll be running 4's easy. . <---said sarcasticly imitating a riceburner racer.

This is impressive non the less. But, we must all remember the V-8's do have alot of restrictions that the ECOtec doesn't. This ECOtec probably has mods equal to top fuel rail and funny cars; it isn't running low 4's, it is running high 6's. This sounds about right. I still find it impressive. Go GM, eat that Toyanda

No pics? Come on! I would like more info about this car though, the article was extremly vauge.

The class he ran in is the Top Dragster class.

6 secounds is not the Top dragster class. Well, maybe in IHRA but not NHRA.

[CJ Thunder]

Imagine a twin turbo V8 corvette or TT DI V6 Caddy...

[big swede]

There are very few stock parts left in that engine but it's impressive what someone can do with an unlimited budget and some knowledge.

[racy]

Originally Posted by big swede

There are very few stock parts left in that engine but it's impressive what someone can do with an unlimited budget and some knowledge.

You bring up a good point: What needs to remain the same for the ECOtec to still be considered an ECOtec? I am guessing its the block. Sure, its probably honed and sleeved the extreme, but it would seem that's probably the only thing resembling stock in the engine. Maybe the heads too - although extrememly worked over.

[EldoFan]

Originally Posted by CobaltSScrazy

attack of the 4cylinder bwhahaha lol.

CobaltSScrazy

PS: Can't wait for the TURBO!

I want to see someone put that much time/effort/money into the LNF........oh man that could be SICK

[TJ95GAGT]

Originally Posted by racy

You bring up a good point: What needs to remain the same for the ECOtec to still be considered an ECOtec? I am guessing its the block. Sure, its probably honed and sleeved the extreme, but it would seem that's probably the only thing resembling stock in the engine. Maybe the heads too - although extrememly worked over.

Aren't the V8's just as worked over? Granted the 4cyl may have more work but I'm sure the 8cyl it was running against didn't resemble the stock engine either.

[racy]

Originally Posted by TJ95GAGT

Aren't the V8's just as worked over? Granted the 4cyl may have more work but I'm sure the 8cyl it was running against didn't resemble the stock engine either.

True. The Donovon blocks used by Top Fuelers look nothing like a Ford, Chevy or Chrysler big block. They are completely custom.

[big swede]

Originally Posted by racy

You bring up a good point: What needs to remain the same for the ECOtec to still be considered an ECOtec? I am guessing its the block. Sure, its probably honed and sleeved the extreme, but it would seem that's probably the only thing resembling stock in the engine. Maybe the heads too - although extrememly worked over.

Virtually nothing is left alone including the block and heads. Sure they started with the stock block but it was debored and fitted with iron cylinder liners to contain the boost. The heads are massively worked over so much that they wouldn't even work on a street car.

Let's call it what it is and that is impressive for a turbo 4. Let's not compare it to a top fuel motor that puts out 8000 hp because this ecotec puts out less than 1500. Can you imagine if they let top-fuel use turbos instead of superchargers. It takes almost 800hp to spin the supercharger to allow for 8000 total hp so imagine adding that 800 along with other efficiencies.

[Ramair-WS6]

Originally Posted by big swede

It takes almost 800hp to spin the supercharger to allow for 8000 total hp so imagine adding that 800 along with other efficiencies.

Too bad it doesn't work that way. A turbo is a HUGE restriction in the exhaust and robs power to make power, just like a supercharger.

There is no such thing as free power

[CobaltSScrazy]

Originally Posted by EldoFan

I want to see someone put that much time/effort/money into the LNF........oh man that could be SICK

There is a GM build book that you can download for free that shows you step by step how to create a 1400hp drag racing ECOtec very cool indeed. I'll prob turn my LNF Cobalt SS into an autocrosser later in life as opposed to a Drag car but its cool nonetheless. Keep a SS Camaro/Z06/Vette for dragging. Or a CTS-V 09!!!

CobaltSScrazy

PS: the last bit is more of a vision, the balt business is within the reach of reality.

[big swede]

Originally Posted by Ramair-WS6

Too bad it doesn't work that way. A turbo is a HUGE restriction in the exhaust and robs power to make power, just like a supercharger.

There is no such thing as free power

It's not free hp but it is a massive difference. A turbo will waste about 5% where a supercharger can waste 20%.

[SonofaUAWman]

People always talk about how turbos use power to make it. It is true but how much? Not as much as same motor S/C.