Stock WASTEGATE Mod.. Cheap Spring Mod... Pics??
yall kill me with all the effort spent in bashing a simple mod..i did it and have no problem hold consistant boost...lol and it doesnt look ghetto at all...unless you did this mod stfu!...i had the forge wastegate and boost was all over the place..obviously with the ix turbo i gave the wastegate back to my friend
This is not about money or much less, about good old, American ingenuity and know-how. I wouldn't use this mod on a Turbo Porsche or a Turbo Neon either. This is a lame and tacky, useless, and potentially dangerous mod. There are much more positive and precise ways to adjust a turbo's boost level. Let's suppose that you want to raise or lower the boost level by just one PSI. How would you achieve that level of resolution with this hokie mod?
I'd like to see someone in the process of road tuning his/her car, pull over to the side of the road, pop the hood, and dick around with a set of needle nose pliers on a hot turbine housing and manifold attempting to remove one spring and then install another one.
Just to educate myself first, I read through the relevant thread on the How-To Forum and this has got to be the most Flinstonesque thing I've seen suggested on here to date. On my Turbo Diesel pickup truck I would just wire the turbo's wastegate shut with bailing wire and it boosted to 34 PSI. Two feet of bailing wire is cheap..
I'd like to see someone in the process of road tuning his/her car, pull over to the side of the road, pop the hood, and dick around with a set of needle nose pliers on a hot turbine housing and manifold attempting to remove one spring and then install another one.
Just to educate myself first, I read through the relevant thread on the How-To Forum and this has got to be the most Flinstonesque thing I've seen suggested on here to date. On my Turbo Diesel pickup truck I would just wire the turbo's wastegate shut with bailing wire and it boosted to 34 PSI. Two feet of bailing wire is cheap..
For that matter someone who just bought a new Forge Wastegate couldn't get out and change their boost by 1 PSI either. If i'm not mistaken the wastegate will get you to whatever your spring is set to, and even with an external wastegate this involves changing a spring, but the boost controller is what sets boost.
SteelEvo: I don't know why I should STFU concerning this topic. IMO, this is still, at best, a bandaid solution for a problem that doesn't even exist. Mitsubishi provides the Evo's 16G turbo with an ADJUSTABLE wga. The actuator rod comes threaded for the purpose of user adjustability of wg preload. Actually, if you could figure out how to operate it then you wouldn't need to jerry-rig the wga with a helper spring.
Last edited by sparky; Dec 25, 2007 at 05:43 AM.
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Joined: Dec 2007
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From: Princeton, NJ
1998 Ford Mustang Cobra: $25,710
2004 Mistubishi Lancer Evolution: $29,999
For arguments' sake, I took the numbers from the same source, which assumed both had about 75% of the options listed. Let's not even get into inflation, and please don't talk about insurance rates. The Cobra was special ordered by my father with leather, Mach460, and SVO side exhaust, and the total came to a whole lot more than $25K. He was the first owner, and as of 2001, my wife is the second. One of the other shop cars is an 05 STi, if you think that would be a more fair comparison?
Back to addressing your point, which I still am not sure what it was, is that the Cobra has gotten nothing but the best care and the best parts. Best parts as meaning, the best parts money can buy. Not necessarily the most expensive, or the prettiest, but the ones that offered the best performance and longevity. I'm not into tossing my money away just to have certain name brands, but I'm not afraid to pay to play either.
OP: You don't need any fuel management, a proper boost control, supporting modifications, timing adjustments, or breathing mods...just crank that **** up as high as it will go, you'll be fine!
I'd like to lay this thread to rest for 2007 and beyond. The helper spring mod is useful in certain situations, however, it is at best redundant on stock turboed Evos. Why?
Some turbos on certain cars other than Mitsubishi Evos come with non-adjustable internal wastegate actuators. I've owned a few of these cars in my time. They come from the factory with non-threaded actuator rods. Thus, the turnbuckle on the end of the actuator rod is fixed and cannot be rotated. On these turbos with non-adjustable WGA's, wastegate preload is, obviously non-adjustable.
In these cases, the usefullness of the helper spring mod seems like an easy solution to the need of the user to make changes in WG preload. However, even under these circumstances there is a preferable solution. Most of the non-adjustable WGA turbos can be converted over to being adjustable by merely extending the threads further down the actuator rod with a threading die.
Fortunately, Mitsubishi provides the 16G's on our Evos with adjustable WGA's which make the helper spring mod useless and redundant. It is still a jerry-rig solution for a problem which doesn't exist.
Some turbos on certain cars other than Mitsubishi Evos come with non-adjustable internal wastegate actuators. I've owned a few of these cars in my time. They come from the factory with non-threaded actuator rods. Thus, the turnbuckle on the end of the actuator rod is fixed and cannot be rotated. On these turbos with non-adjustable WGA's, wastegate preload is, obviously non-adjustable.
In these cases, the usefullness of the helper spring mod seems like an easy solution to the need of the user to make changes in WG preload. However, even under these circumstances there is a preferable solution. Most of the non-adjustable WGA turbos can be converted over to being adjustable by merely extending the threads further down the actuator rod with a threading die.
Fortunately, Mitsubishi provides the 16G's on our Evos with adjustable WGA's which make the helper spring mod useless and redundant. It is still a jerry-rig solution for a problem which doesn't exist.
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Turned the wastegate actuator down on my 9, make 36lbs of boost in 1st gear dropping to 26lbs and holding. I run an EBC as well, my car is dyno tuned on meth. Car rips all 4 tires loose from a roll in first and shifting into second. The torque is ridiculous. Can't wait to take it back to the track. Don't try this at home boys and girls on pump!
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From: Oskaloosa, IA
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