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Forget all the other stuff in this thread your problem is simply you are no way spinning your car high enough.
If you are crossing the traps at 6K in 4th - you are way under-geared. For other set-ups, it may be different but you have a VORTECH - a centrifugal blower. You make power with rpm and you can EASILY spin your motor to 7K. Remember you have a MODULAR motor and these motors love to spin and make their power up high. When I had a vortech and manual on the bone stock longblock - I shifted at 7K for a year and never had any issues.
Want to see a major improvement cheap and easily? put 4.10's in the car, set your rev limiter for 7200 and make your shifts at 6800 rpm. If you are still crossing the traps under 6500 rpm - put 4.30's in there.
Just doing that - I'd lay money you'll come back and thank me...
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__________________
05 Sonic Blue Roush GT - 9.67 @ 141 Daily Driver!
On the cover and featured in the Dec. 09 MM&FF - Check it out!!
Forget all the other stuff in this thread your problem is simply you are no way spinning your car high enough.
If you are crossing the traps at 6K in 4th - you are way under-geared. For other set-ups, it may be different but you have a VORTECH - a centrifugal blower. You make power with rpm and you can EASILY spin your motor to 7K. Remember you have a MODULAR motor and these motors love to spin and make their power up high. When I had a vortech and manual on the bone stock longblock - I shifted at 7K for a year and never had any issues.
Want to see a major improvement cheap and easily? put 4.10's in the car, set your rev limiter for 7200 and make your shifts at 6800 rpm. If you are still crossing the traps under 6500 rpm - put 4.30's in there.
Just doing that - I'd lay money you'll come back and thank me...
Pretty much what i was thinking, you need better gears to help that centri in the 1/4th!
__________________
2005 Black Mustang GT
298 Stroker motor
TR-6060 6 speed transmission
Saleen SuperShaker
+ a lot more
600+ RWHP Crew
True, but at the same time the new problem has arising that I have my little s-trim maxed out. When I dyno it is peaking at 6500 rpm then going back down in hp after that which never made sense to me in the first place. I think what I need to do first is send my blower in to get the t-trim insides and see how much hp I make when I get that back and also see what rpm I trap at. You also have to remember that I still have the stock trans and I dont think it'll like me much if I'm shifting at 7000 rpms. I have already decided to call it a season and turn to getting ready for the spring. As I said b4 the first matter of buissness it getting a blower that fits my setup better.
True, but at the same time the new problem has arising that I have my little s-trim maxed out. When I dyno it is peaking at 6500 rpm then going back down in hp after that which never made sense to me in the first place. I think what I need to do first is send my blower in to get the t-trim insides and see how much hp I make when I get that back and also see what rpm I trap at. You also have to remember that I still have the stock trans and I dont think it'll like me much if I'm shifting at 7000 rpms. I have already decided to call it a season and turn to getting ready for the spring. As I said b4 the first matter of buissness it getting a blower that fits my setup better.
Dude - first of all you have been reading way too many auto trans failure threads...lol
You have a manual and your clutch is (and is always going to be) the issue and you WILL smoke clutches here and there and that's just the cost of making power on a manual. Shifting at 6800 is no harder on your trans than shifting at 3400 - it all depends on HOW you shift. The harder you shift, the less the clutch will last regardless of 'where' you are shifting.
Secondly, I HIGHLY DOUBT you have maxed out the blower. What size pulley are you running right now?
From what you described - you are not maxing out the blower, you are running out of fuel and spark - mainly FUEL. If you max out a blower - it doesn't 'lose' power - it simply reaches a peak where you don't get much more out of it with more boost.
I'd also lay odds you do not have an adeqaute fuel set-up for what you are doing? Let me guess - GT500 pumps? What injectors? What rails? what lines? What fuel are you running with your race tune? All of this (and more) come into play. You very well may need a T-trim - I don't know without looking at your set-up but I do know for sure you are not working that blower to it's potential at all. With centrifugals - you have to spin them...period.
It sounds like your trying to drive it like a turbo or TS car - big difference.
Lastly, I don't want to be the bearer of bad news but if you want to run 10's - then you can't be afraid to replace things like clutches. That's just part of racing and goes with the territory on ANY car. Have to pay to play. If you are worried about stuff breaking now and then - stick to where you are at and don't go any further IMO.
__________________
05 Sonic Blue Roush GT - 9.67 @ 141 Daily Driver!
On the cover and featured in the Dec. 09 MM&FF - Check it out!!
Roger that. I am running dual GT500 fuel pumps with 60 lbs injectors and stock fuel rails. I would hope that that duel system is sending enough fuel into the engine. Its not like I'm pushing 800+ rwhp. Heres a picture of my dyno graph that is showing me that I am maxing the s-trim out. I am using a 3.12" pulley which should put me around 16 lbs of boost. If the s-trim was on a stock block with a higher compression ratio then 8.5:1 I think it would be fine.
Look how the hp levels out and then goes down, a centri should keep producing hp no matter what and the obvious reason being is the torque is dropping like a rock in a lake after 5252. I mean it should at least level out.
O ya, at the one track I use 112 octane and the other I use 116. At both places, when I have these fuels in the tank, I advance the timing 4 degrees.
Roger that. I am running dual GT500 fuel pumps with 60 lbs injectors and stock fuel rails. I would hope that that duel system is sending enough fuel into the engine. Its not like I'm pushing 800+ rwhp. Heres a picture of my dyno graph that is showing me that I am maxing the s-trim out. I am using a 3.12" pulley which should put me around 16 lbs of boost. If the s-trim was on a stock block with a higher compression ratio then 8.5:1 I think it would be fine.
Look how the hp levels out and then goes down, a centri should keep producing hp no matter what and the obvious reason being is the torque is dropping like a rock in a lake after 5252. I mean it should at least level out.
O ya, at the one track I use 112 octane and the other I use 116. At both places, when I have these fuels in the tank, I advance the timing 4 degrees.
Just so you know, multiple times i have seen the gt500 pumps max at 600rwhp or so, ive seen less than that before too and ive also seen 650.. not sure why it varies so much.
I saw 80% duty cycle using 60lb injectors and gt500 pumps at 547rwhp i decided to upgrade even more after that.
__________________
2005 Black Mustang GT
298 Stroker motor
TR-6060 6 speed transmission
Saleen SuperShaker
+ a lot more
600+ RWHP Crew
wtf..... are you kidding me? So what now, go add a boost a pump? I mean my air/ fuel ratio is great all the way through. I mean if there wasn't enough fuel going in wouldn't it be running lean? You dont agree with my theory at all that my blower is maxed out after looking at the dyno graph?
I added a boost a pump, yes. Some people dont like boost a pumps though. Ive never datalogged myself before so im not sure if you can check your own fuel pump duty cycles, so maybe someone else can chime in on how to do that.. that way you can check just to be safe.
__________________
2005 Black Mustang GT
298 Stroker motor
TR-6060 6 speed transmission
Saleen SuperShaker
+ a lot more
600+ RWHP Crew
the more i look at your graph and think about what you said.. your crossing the line at 6k in 4th gear? Its hard for me to read but that would be what, about 535rwhp/470rwtq? I can definately see switching to 4.10s helping, since you would be trapping at around 6500 which is your peak power pull it looks like, that itself could very well put you in 10's.
__________________
2005 Black Mustang GT
298 Stroker motor
TR-6060 6 speed transmission
Saleen SuperShaker
+ a lot more
600+ RWHP Crew
If I end up going with my insane build plan I will be going slushbox + Nitrous + Increased boost.
I thought the same thing but man your 60' times are great and very consistent!
Ever think about meth inj? Up the boost and lower intake temps.....that with 4.10's and your golden in the high 10's with those 60' times IMO. Or do you already have it? (meth)
check these out for some good info on meth with the vortech
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