Hahn RaceCraft 2.4 Cobalt TurboSystem
#352
#354
ricer lol pffffssssh! i wouldnt mind that sound either but not for our cars. i think making it quite would be cooler it would be like a sleeper car. no one would know theres a turbo till you raced them. its all quite then comes outta no were and kicks there ass.
ryan.
ryan.
#355
You guys, lol! Actually, there's no good way to make it loud, as it recirculates back into the intake tube, and opening up this valve would cause engine management problems. But don't fret...you'll hear it, it just won't startle the car next to you!
#357
yeah i figured itd cause some problems if we altered it. i think ill just buy the kit and then wait for the upgrades. no need to be messin with somethin thats brand new. even though ass soon as i bought my car i spent like 400 bucks in 2 days on it
ryan.
ryan.
#358
is there a way to make it just stand out instekad of making it recirculate?
#359
am I the only one that has decent insurance...
personally the loud BOV is over rated it sounds cool... i like the procharger BOV flutter but the loud PSSSHHHH just is like HEY I HAVE A TURBO ... sleeper FTW
personally the loud BOV is over rated it sounds cool... i like the procharger BOV flutter but the loud PSSSHHHH just is like HEY I HAVE A TURBO ... sleeper FTW
#360
sleeper? lol i dont really get that term, why pay all that money to make yours fast and try to be a sleeper? like honestly are you racing for pink slips? are you racing for tons of money? lol nope
#366
#367
You are missing the reason why it recirculates. These cars use MAF based engine management. If the MAF meters in air to the engine, which is then simply blown off into the atmosphere, then the air measured by the MAF is no longer what is actually going through the engine. It would screw up the air to fuel ratio.
#368
i understand that, im just saying he said the air fuel ratio can be fine tuned. and its not like other turbos dont have it shooting out.. it wasnt that dumb of a question, i know what your saying but thats not what i was getting at
haha no that is some kid that i was talking to in another thread. it was an inside joke thing lol dont worry.
haha no that is some kid that i was talking to in another thread. it was an inside joke thing lol dont worry.
Last edited by fbaero10; 06-15-2007 at 04:06 PM. Reason: Automerged Doublepost
#370
I'm pretty sure the reason Hahn plans to keep the PCM pretty much 'locked' is so that people don't blow their engines up..
That and the AFR can now be adjusted with just a screw turn, which is a hell of a lot easier than any other way.. so in other words, it makes the most frequently tuned piece super easy to access; and preserves their flash for engine durability.
And it's all that money for 100 whp, 1.5-2secs on the 1/4, and the ability to move up in Stages as time progresses (The 2.4L VVT isn't going anywhere anytime soon..). Doesn't sound like too bad for me.
And sadly, no, not available for purchase yet..
That and the AFR can now be adjusted with just a screw turn, which is a hell of a lot easier than any other way.. so in other words, it makes the most frequently tuned piece super easy to access; and preserves their flash for engine durability.
And it's all that money for 100 whp, 1.5-2secs on the 1/4, and the ability to move up in Stages as time progresses (The 2.4L VVT isn't going anywhere anytime soon..). Doesn't sound like too bad for me.
And sadly, no, not available for purchase yet..
#372
Honestly I'm sure that will likely happen anyhow. Now that it's been proven this can work, and once a few folks have installed and shown it has durability it is likely just a matter of time before someone reverse engineers or just all out steals this.
But, then again, you get what you pay for. And I personally - especially since I'll be losing my warranty - would rather from a respected name that will back up their work.
But, then again, you get what you pay for. And I personally - especially since I'll be losing my warranty - would rather from a respected name that will back up their work.
#374
people need to stop worrying about the speed limiter... unless you have better tires upping the speed limiter can just cause problems. plus if you beat him to 130 you beat him. the amount of danger between 130-150 is ridiculous ... and guess what... there will just be a car that can go faster than you once you race that fast...
plus most races happen from 60-120 or so or 40-100, if you haven't beat them by then you're not going to ... or if you're ahead by then you won.... unless they have a monstrous turbo that doesn't spool up till 110 i think you're safe.
I'm ecstatic about this package.. I just want to know how much stress the stock 2.4 can take over extended periods of time. so that way when I go F/i I'll have a better idea of where my limits are... since there's documentation on how much the 2.0s and 2.2s can withstand on stock internals but no one seems to know what the 2.4 can handle for the individual parts and what the weak point mechanically is
plus most races happen from 60-120 or so or 40-100, if you haven't beat them by then you're not going to ... or if you're ahead by then you won.... unless they have a monstrous turbo that doesn't spool up till 110 i think you're safe.
I'm ecstatic about this package.. I just want to know how much stress the stock 2.4 can take over extended periods of time. so that way when I go F/i I'll have a better idea of where my limits are... since there's documentation on how much the 2.0s and 2.2s can withstand on stock internals but no one seems to know what the 2.4 can handle for the individual parts and what the weak point mechanically is
#375
I'm ecstatic about this package.. I just want to know how much stress the stock 2.4 can take over extended periods of time. so that way when I go F/i I'll have a better idea of where my limits are... since there's documentation on how much the 2.0s and 2.2s can withstand on stock internals but no one seems to know what the 2.4 can handle for the individual parts and what the weak point mechanically is
LE5 has a number of 'gifts' from GM. I began dismantling, studying and comparing them over a year ago, and this is one fine engine internally! Some of the notable features:
- Forged connecting rods
- Friction coated pistons w/internal oilcooling passages
- Oil sprayers below pistons to move oil into the oilcooling passages
- Floating wrist pins with bushed rod small ends
- Tapered rod small ends and piston pin bosses for additional wrist pin support
It's not a reach to say that the LE5 is very similar in internal features to the LSJ, just 20% bigger! 20% is a bunch...in V8 parlance, it's equivalent to the difference between a 350 and a 427!