A running pictorial of my monster Protomotive build
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From: In a Canyon - Really :)
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Totally cool stuff. Congrats man!
Didn't read all pages so forgive if it's a repeated question. Any idea why the TT springs are stiffer? I would think that the GT3 springs would have to be stiffer to avoid valve float at the extended RPM. If the TT has has higher lift, that might explain it since the springs would have to work hard over a longer range?
Didn't read all pages so forgive if it's a repeated question. Any idea why the TT springs are stiffer? I would think that the GT3 springs would have to be stiffer to avoid valve float at the extended RPM. If the TT has has higher lift, that might explain it since the springs would have to work hard over a longer range?
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From: Virginia, USA
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Totally cool stuff. Congrats man!
Didn't read all pages so forgive if it's a repeated question. Any idea why the TT springs are stiffer? I would think that the GT3 springs would have to be stiffer to avoid valve float at the extended RPM. If the TT has has higher lift, that might explain it since the springs would have to work hard over a longer range?
Didn't read all pages so forgive if it's a repeated question. Any idea why the TT springs are stiffer? I would think that the GT3 springs would have to be stiffer to avoid valve float at the extended RPM. If the TT has has higher lift, that might explain it since the springs would have to work hard over a longer range?
Good question, Ari. Unfortunately I don't know the answer. My springs are custom so it makes sense that they're stiffer...but I'm not sure about the stock springs.
I'll point Todd to this question.
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Totally cool stuff. Congrats man!
Didn't read all pages so forgive if it's a repeated question. Any idea why the TT springs are stiffer? I would think that the GT3 springs would have to be stiffer to avoid valve float at the extended RPM. If the TT has has higher lift, that might explain it since the springs would have to work hard over a longer range?
Didn't read all pages so forgive if it's a repeated question. Any idea why the TT springs are stiffer? I would think that the GT3 springs would have to be stiffer to avoid valve float at the extended RPM. If the TT has has higher lift, that might explain it since the springs would have to work hard over a longer range?
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Valve springs
Derboost is right on with the boost thing. Figure, if you have a 2" inlet valve, the surface area is pi r ^2, or 3.14159in^2, and at 1.5 bar of boost, you'll have 68lbs of pressure trying to force the valve open... Well, if you only have 80lbs or so of seat pressure, the valve is just barely sealed, where on a gt3, you'd have the full force of the spring applying to seating the valve.
However, the gt3's also have another advantage that allows for lighter springs. The lifters are maybe 1/4 of the weight of the 996tt's as they not only don't have the variable lift stuff going on, but also are smaller in diameter. The rsr's go even further and remove the hydraulics and have a mere shell as the lifter, so with the same spring, they have proportionately higher rpm capability just due to the lower mass of the system involved.
However, the gt3's also have another advantage that allows for lighter springs. The lifters are maybe 1/4 of the weight of the 996tt's as they not only don't have the variable lift stuff going on, but also are smaller in diameter. The rsr's go even further and remove the hydraulics and have a mere shell as the lifter, so with the same spring, they have proportionately higher rpm capability just due to the lower mass of the system involved.
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k24/18gs are good for 600 to the wheels but the car is more responsive then a gt30r turbo car. GT30.s require water cooling and extra fab work to fit them so the cost to benefit ratio should be considered as well. the 044 mm tial WGs are not cheap either. Looks liek the gt3076 is a good turbo.... no issues there...
Bobby has K24/20s in his white 996tt and hes produced 720 rwhp as well.
markski
Bobby has K24/20s in his white 996tt and hes produced 720 rwhp as well.
markski
Mark...I am confused how much power did Bobbys car made at the end ???
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I answered his many questions on other threads he started...
his questions are so loaded that I can spend a month answering... and I don't have time.
He want's the best of both worlds.. a reliable car in Russia without any mechanical local support putting down 800rwhp or more that will not break down and launch liek a bandit while not braking axles or tranny and beat some of the most powerful P cars in the world... ( 9ff, ruf, enzo, ect).
good luck..
markski
his questions are so loaded that I can spend a month answering... and I don't have time.
He want's the best of both worlds.. a reliable car in Russia without any mechanical local support putting down 800rwhp or more that will not break down and launch liek a bandit while not braking axles or tranny and beat some of the most powerful P cars in the world... ( 9ff, ruf, enzo, ect).
good luck..
markski
...So there is no such P-car made yet for my needs...
What set up does the 996TT need to have car has to beat Ford GT TT ???
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A ford GT TT engine in a Porsche
Are you nuts GT RUS?
Get a Viper GTS coupe, throw a couple of 74's on it and call it a day.
Making a Porsche that powerful is not cheap and will not run on pump
MK
Are you nuts GT RUS?
Get a Viper GTS coupe, throw a couple of 74's on it and call it a day.
Making a Porsche that powerful is not cheap and will not run on pump
MK
Last edited by WOODTSTER; Apr 2, 2008 at 06:24 PM. Reason: to clarify point
Exactly... I just found out that now he wants to do all this on pump gas... forget about it.... 3.6L motor with big turbos at 1 bar on pump gas does not make 700 rwhp....
__________________
2001 996TT 3.6L and stock ECU
9.66 seconds @ 147.76 mph 1/4 mile click to view
160 mph @ 9.77 seconds in 1/4 mile click to view
50% OFF ON PORSCHE ECU TUNING BLACK FRIDAY SPECIAL
2001 996TT 3.6L and stock ECU
9.66 seconds @ 147.76 mph 1/4 mile click to view
160 mph @ 9.77 seconds in 1/4 mile click to view
50% OFF ON PORSCHE ECU TUNING BLACK FRIDAY SPECIAL
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Ok so that is impossible then...cause some people here said that they beat mod FORD GT making over 800 HP...
OK what set I up do I need to have to beat ENZO, mod SLR or CGT
???
