The perfect power curve?!??!! Can't wait.
Discussion
I've been thinking about all the big power figures available. Which is fantastic.
I've also been thinking about how much torques and BHP a Chim can handle off a turn!
You can never have enough power but I'm thinking if I could get say 325 bhp and a good tork figure to match then I could nail things and get the perfect amount of grip off the slow stuff and thus hook the car up at it's physical maximum.
I'm talking track driving ( flat out ) the straights are never that long so it's more about drive ability and getting that all important grip.
See what I'm getting at, the best power figures to maximise the car rather than the driver.
I found with the Tvr going fast into the corners in the dry and then hammering the throttle it gripped well, I just needed a bit more power!
Or is it a case of the car can hack it if you can give it more power!
Just something to contemplate.
Now the all important question
If my car has say 290 bhp and runs standard ecu, Lucus and standard air intake, what's the easiest way to get 325.
Gas flowed heads? Stage 4/5
What's the cheapest way to get upto 325/330, I'm creeping up already!
I've been in other Chime and since I sorted the air intake pipe, it was crushed to a third it's size the car feels so fast I think it's 300hp already, the air intake roar after 4000 revs is like a monster shouting and I can get wheel spin in the dry in third at 80mph on Tap! I've done loads of race starts and timed em, it's at 65 on the speedo in 4.3!
Is it my imagination or am I racing past hundred much faster than this time last year!
I knew it wasn't quite there so go check your air intake pipe,
For those that are new, look inside the rad opening on the N/s of the car from the front. Find the air filter and you'll see how the original pipe twists to get through the hole into engine bay, I missed it at first but then found mine totally collapsed. When it's on full chat it must reduce to about an inch!
I've swapped mine around so the weaker end is at the AFM
I have loads of untapped power!
Even in 4th she chucks me up the road and says are you big enough!
Brilliant.
Did I waffle there,
So I think I'm answering my own question,
Would an ACT tripple Plenom offer me a good hp boost?
Thanks for waiting, Alun.
I've also been thinking about how much torques and BHP a Chim can handle off a turn!
You can never have enough power but I'm thinking if I could get say 325 bhp and a good tork figure to match then I could nail things and get the perfect amount of grip off the slow stuff and thus hook the car up at it's physical maximum.
I'm talking track driving ( flat out ) the straights are never that long so it's more about drive ability and getting that all important grip.
See what I'm getting at, the best power figures to maximise the car rather than the driver.
I found with the Tvr going fast into the corners in the dry and then hammering the throttle it gripped well, I just needed a bit more power!
Or is it a case of the car can hack it if you can give it more power!
Just something to contemplate.
Now the all important question
If my car has say 290 bhp and runs standard ecu, Lucus and standard air intake, what's the easiest way to get 325.
Gas flowed heads? Stage 4/5
What's the cheapest way to get upto 325/330, I'm creeping up already!
I've been in other Chime and since I sorted the air intake pipe, it was crushed to a third it's size the car feels so fast I think it's 300hp already, the air intake roar after 4000 revs is like a monster shouting and I can get wheel spin in the dry in third at 80mph on Tap! I've done loads of race starts and timed em, it's at 65 on the speedo in 4.3!
Is it my imagination or am I racing past hundred much faster than this time last year!
I knew it wasn't quite there so go check your air intake pipe,
For those that are new, look inside the rad opening on the N/s of the car from the front. Find the air filter and you'll see how the original pipe twists to get through the hole into engine bay, I missed it at first but then found mine totally collapsed. When it's on full chat it must reduce to about an inch!
I've swapped mine around so the weaker end is at the AFM
I have loads of untapped power!
Even in 4th she chucks me up the road and says are you big enough!
Brilliant.
Did I waffle there,
So I think I'm answering my own question,
Would an ACT tripple Plenom offer me a good hp boost?
Thanks for waiting, Alun.
Lights blue touch paper and magically graphs appear.
My old 5.0
Stage 4 Robs V8D heads
72mm plenum
Ported intake
Shortened trumpets
14cux
Slight ECU tweak by Austecs
Smooth bore, K&N, etc, etc
Running slightly advanced timing.
Before & after graphs are decatted and catted, (probably blocked main cat).
My old 5.0
Stage 4 Robs V8D heads
72mm plenum
Ported intake
Shortened trumpets
14cux
Slight ECU tweak by Austecs
Smooth bore, K&N, etc, etc
Running slightly advanced timing.
Before & after graphs are decatted and catted, (probably blocked main cat).
Cracking, ahh yours is a 500 mines a baby 4.6 Quinny.
I've yet to fit a decent air intake pipe, can't find one I like the look of??
Mine was also built by Powers but I've not had it on the rollers. Original pistons and bores but honed and new rings crank grind Kent 885 cam which is moderate I think?
It's pretty standard but Dom chipped it also, steel rockers etc, what is the difference with the Taraka and a standard re build, I sort of worked with him on the engine deciding as we found it rather than ordering anything. I was new to Tvr and didn't really check his web site before hand, err I said it's got to be fast but not lumpy down the bottom and he truly obliged.
Having worked on the chassis for months, the sweet sound of it and how quiet the motor runs is a joy.
Doing some test drives last week, I hit the power band around my local streets, the air intake sounds like a racing car, it's sucking like hell, fantastic sound and people have remarked how good it's sounding, must be true then!
So the thread. You've got the right amount of power for the car or do you fancy more when it's all hooked up Quinny?
Any more power and would you spend all day trying to make it stick, great fun but slower.
I've yet to fit a decent air intake pipe, can't find one I like the look of??
Mine was also built by Powers but I've not had it on the rollers. Original pistons and bores but honed and new rings crank grind Kent 885 cam which is moderate I think?
It's pretty standard but Dom chipped it also, steel rockers etc, what is the difference with the Taraka and a standard re build, I sort of worked with him on the engine deciding as we found it rather than ordering anything. I was new to Tvr and didn't really check his web site before hand, err I said it's got to be fast but not lumpy down the bottom and he truly obliged.
Having worked on the chassis for months, the sweet sound of it and how quiet the motor runs is a joy.
Doing some test drives last week, I hit the power band around my local streets, the air intake sounds like a racing car, it's sucking like hell, fantastic sound and people have remarked how good it's sounding, must be true then!
So the thread. You've got the right amount of power for the car or do you fancy more when it's all hooked up Quinny?
Any more power and would you spend all day trying to make it stick, great fun but slower.
swanny71 said:
320 bhp and 355 torques from a TVR Power Taraka rebuild, not sure I'd ever need more (that's not to say I won't chase a little more in the future though 
)
Close to the figures you mention Alun and it feels very fast, everywhere and in every gear.
That there is the perfect power curve for a road car, forget big BHP figures with f all torque that is only useful on track where you maintain high RPM. Torque is what makes a car feel fast and that has an nice flat torque band over 300 ft/lb at 2k RPM rising to almost 360 by 3k RPM! )Close to the figures you mention Alun and it feels very fast, everywhere and in every gear.
Seems the engine also offered that power much earlier Peter.
So on sticky tyres are you able to boot the 5.5 or do you have to always feed it in?
To me as soon as it sticks I want another 200 hp all of a sudden!
My other consideration is the drive train and standard clutch
Enough to rock yet keep together.
I get the feeling if you can master the entry speeds then the exits won't be so abrupt anyway, you could have more power and it makes less difference as the engine is screaming anyway.
All in my dreams,the idea of thrashing my car is getting harder to contemplate these days.
So on sticky tyres are you able to boot the 5.5 or do you have to always feed it in?
To me as soon as it sticks I want another 200 hp all of a sudden!
My other consideration is the drive train and standard clutch
Enough to rock yet keep together.
I get the feeling if you can master the entry speeds then the exits won't be so abrupt anyway, you could have more power and it makes less difference as the engine is screaming anyway.
All in my dreams,the idea of thrashing my car is getting harder to contemplate these days.
Mpoxon, these cars would pull a train, torque is a beautiful thing, frightens the living day lights out of me.
Well mine also feels like far to much torque for the car also, I better bell Dom in the morning and thank him again. Lol.
It's time I found out what's it's really got and go from there.
Well mine also feels like far to much torque for the car also, I better bell Dom in the morning and thank him again. Lol.
It's time I found out what's it's really got and go from there.
The 5.5 is very progressive and not a killer 
Power is more urgent as expected and therefore 80 mph acceleration in top is phenomenal, (for an NA engine).
You can drive it like a pussycat or like at the sprint a couple of weeks ago, smoke the tyres from a power slide right on up the straights, (on triple 8s).
Power is more urgent as expected and therefore 80 mph acceleration in top is phenomenal, (for an NA engine).
You can drive it like a pussycat or like at the sprint a couple of weeks ago, smoke the tyres from a power slide right on up the straights, (on triple 8s).
phazed356BHP said:
The 5.5 is very progressive and not a killer
Power is more urgent as expected and therefore 80 mph acceleration in top is phenomenal, (for an NA engine).
You can drive it like a pussycat or like at the sprint a couple of weeks ago, smoke the tyres from a power slide right on up the straights, (on triple 8s).
Power is more urgent as expected and therefore 80 mph acceleration in top is phenomenal, (for an NA engine).
You can drive it like a pussycat or like at the sprint a couple of weeks ago, smoke the tyres from a power slide right on up the straights, (on triple 8s).
that torque curve!I think the Taraka uses a different trumpet base and a few other bits . There are some parts for sale from a Taraka engine on classifieds .
I have the older ACT induction kit with two air filters ,think they have increased the bore since .Tested on the dyno connected and disconnected with a short straight piece of pipe connected the figures were exactly the same ,just shows you it works .
I have the older ACT induction kit with two air filters ,think they have increased the bore since .Tested on the dyno connected and disconnected with a short straight piece of pipe connected the figures were exactly the same ,just shows you it works .
). Really quick motor Daz,
The Taraka is a 500 upgrade. I like the thermal break that Powers do, as I like my original Plenom I might have it bored out and eventually get a decent Ecu,
I see from Peters tweaks on his 4.6 there's a bit to do to get those figures.
Has anyone got some more graphs for other 4.6 engines, I'd like to study a standard set up, 285hp ish.
In fact has anyone got graphs for a good 4.0 litre engine.
I see Chilli has different pistons as well, top motor there too.
The Taraka is a 500 upgrade. I like the thermal break that Powers do, as I like my original Plenom I might have it bored out and eventually get a decent Ecu,
I see from Peters tweaks on his 4.6 there's a bit to do to get those figures.
Has anyone got some more graphs for other 4.6 engines, I'd like to study a standard set up, 285hp ish.
In fact has anyone got graphs for a good 4.0 litre engine.
I see Chilli has different pistons as well, top motor there too.
Nothing like Supercharger to give a power curve that has BHP rise alongside Torque in a smooth curve that isn't going to bite you in the arse (Cough #turbo crap)
Her is ours -
Red = BHP
Blue = Torque
It actually got remapped last week with a few other tweaks and were now at 380BHP (from a 4 litre) - all which would probably cost a lot less than 5+ different NA upgrades that will only get you 20% increase in power.
me, totally unbiased
Her is ours -
Red = BHP
Blue = Torque
It actually got remapped last week with a few other tweaks and were now at 380BHP (from a 4 litre) - all which would probably cost a lot less than 5+ different NA upgrades that will only get you 20% increase in power.
me, totally unbiased
Yeah that's really smooth Nick,
I'm bothered,
So when will the crank cry enough already, do you guys have worries of blowing the crank off or snapping it.
What is the concensus as to what a cross bolted bottom end could take?
Anyway we should be buying flat plain cranks and getting 440 hp at 8500 revs, nice.
Race engines for real.
I'm bothered,
So when will the crank cry enough already, do you guys have worries of blowing the crank off or snapping it.
What is the concensus as to what a cross bolted bottom end could take?
Anyway we should be buying flat plain cranks and getting 440 hp at 8500 revs, nice.
Race engines for real.
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