At what power level has people pushed water with a 4-bolt setup?
08-27-2008, 02:24 PM
#42
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sorry for my ignorance, but since I have never had an issue with pushing water what should I be looking for, or how do I know that I am pushing water. This will be the first car that will even be capable of doing it. all the other turbo cars were little VW's and MR2's
When your car goes sideways @ 160mph before the end of the track!
Also when you go to repack your parachute, it's wet. lol 
08-27-2008, 02:32 PM
#44
You can push water at 130mph if you try.
All depends on your definition of pushing water, moving a couple ounces or blowing a couple quarts into an overflow. Pretty safe to say that over 1000fwhp is when you are going to start having problems if you race the car often.
I'm starting to see some carbon between the head and block after last weekend, I havent ran much 1/4 mile this year either and its really not moving a lot of water, But when you see those marks between the head and block there its coming soon.
I have noticed that its a cumulative thing, more passes you make (or more you beat on it in general) its going to start doing it worse and worse. If you make 20 passes a year you can get away with a lot more than if you make 100 thats for sure. But I'm kinda used to it, kind of a bummer since when I see it I dont want to push it any harder..
All depends on your definition of pushing water, moving a couple ounces or blowing a couple quarts into an overflow. Pretty safe to say that over 1000fwhp is when you are going to start having problems if you race the car often.
I'm starting to see some carbon between the head and block after last weekend, I havent ran much 1/4 mile this year either and its really not moving a lot of water, But when you see those marks between the head and block there its coming soon.
I have noticed that its a cumulative thing, more passes you make (or more you beat on it in general) its going to start doing it worse and worse. If you make 20 passes a year you can get away with a lot more than if you make 100 thats for sure. But I'm kinda used to it, kind of a bummer since when I see it I dont want to push it any harder..
Exactly!! On the restrictor plate motors on aggressive tuneups, we can, and have pushed water. With the Bosch engine management, we can change timing based on water pressure
water pressure Starts to increase, timing will drop until its below acceptable levels, and then start to ramp timing back in. 
08-27-2008, 02:35 PM
#45
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Obviously you can push water at 130mph, but the topic is implying high hp setups. In the early days of the scene all the early FI cars pushed water even just going into the 130's, and it wasn't until folks like Matt Harlan debuted his TT hawk and went low 8's in 2003 that we saw folks really flying with turbos. I don't recall Ronnie Duke's history with his ATI setups but he did go 8's quite a while ago.
08-27-2008, 06:19 PM
#48
Exactly!! On the restrictor plate motors on aggressive tuneups, we can, and have pushed water. With the Bosch engine management, we can change timing based on water pressure water pressure Starts to increase, timing will drop until its below acceptable levels, and then start to ramp timing back in.
water pressure Starts to increase, timing will drop until its below acceptable levels, and then start to ramp timing back in. 
Obviously you can push water at 130mph, but the topic is implying high hp setups. In the early days of the scene all the early FI cars pushed water even just going into the 130's, and it wasn't until folks like Matt Harlan debuted his TT hawk and went low 8's in 2003 that we saw folks really flying with turbos. I don't recall Ronnie Duke's history with his ATI setups but he did go 8's quite a while ago.
Who is Matt Harlan?
08-27-2008, 06:48 PM
#50
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Just to chime in,
Last year we pushed water a tad bit, we were doing 120 in 8th and 146 in 1/4.
This year were running the same, but 2 more mph on the back half with less boost. No signs of water or head lift yet, stock MLS 6.0L gaskets.
We are changing some things up currently and should know whats it should handle very soon, poor blower will be a spinning
Last year we pushed water a tad bit, we were doing 120 in 8th and 146 in 1/4.
This year were running the same, but 2 more mph on the back half with less boost. No signs of water or head lift yet, stock MLS 6.0L gaskets.
We are changing some things up currently and should know whats it should handle very soon, poor blower will be a spinning
12-15-2008, 04:01 AM
#51
I have a noob question for this thread. After reading two and a half pages here I am still not sure exactly what you guys mean by "pushing water"
I ASSUMED that you were talking about running a lot of boost and high cylinder pressures and actually lifting the heads off from the deck of the block, but then I see a lot of posts about overflow tanks and such...
Are you talking about rising water temps and having water expand into an over flow or blowing water out the side of the engine if the heads and block seperate?
I ASSUMED that you were talking about running a lot of boost and high cylinder pressures and actually lifting the heads off from the deck of the block, but then I see a lot of posts about overflow tanks and such...
Are you talking about rising water temps and having water expand into an over flow or blowing water out the side of the engine if the heads and block seperate?
12-15-2008, 05:59 AM
#52
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I have a noob question for this thread. After reading two and a half pages here I am still not sure exactly what you guys mean by "pushing water"
I ASSUMED that you were talking about running a lot of boost and high cylinder pressures and actually lifting the heads off from the deck of the block, but then I see a lot of posts about overflow tanks and such...
Are you talking about rising water temps and having water expand into an over flow or blowing water out the side of the engine if the heads and block seperate?
I ASSUMED that you were talking about running a lot of boost and high cylinder pressures and actually lifting the heads off from the deck of the block, but then I see a lot of posts about overflow tanks and such...
Are you talking about rising water temps and having water expand into an over flow or blowing water out the side of the engine if the heads and block seperate?
12-15-2008, 12:12 PM
#53
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I have never pushed any water running 149-151 on pump gas in 80-90 degree days. This past weekend it was 48 degrees and I added 3 gallons of 112 since I didn't have my laptop with me. Still on the same 12psi I trapped 155 but on the 5th pass it was 260 coolant temp on the return road and wouldn't cool off even with the motor off and electric h20 pump and fans running. The over flow overflowed and was bowling.
12-15-2008, 12:58 PM
#54
Exactly!! On the restrictor plate motors on aggressive tuneups, we can, and have pushed water. With the Bosch engine management, we can change timing based on water pressure water pressure Starts to increase, timing will drop until its below acceptable levels, and then start to ramp timing back in.
water pressure Starts to increase, timing will drop until its below acceptable levels, and then start to ramp timing back in. 