These are the mods I have done to our GTi-R: 600x300x76mm FMIC with 3" piping, Greddy TD06-20g and Trust manifold with Trust 45mm wastegate, Autronic SM2 ECU, SX fuel regulator, 800cc injectors on custom fuel rail and 3" exhaust...do you think it is possible to get 250kW atw on 18psi?
250 kw atw from a GTi-R
- Thread starter jap-jet
- Start date
P
purplemonster
Guest
what sort of spec is the Greddy TD06-20g ?
cheers
cheers
A
Ash
Guest
I think the only way you are going to find the answer to that question is to put the car on a dyno.
Results from modifications can vary quite a lot, so it is quite hard to estimate a cars power figure.
To give you an example, my GTI-R put out a peak figure of 186kw (249bhp) at the wheels just two weeks ago.
...and the modifications it has are 3 inch exhaust from the stock dump pipe, HKS air filter, 16 psi and (I am told by previous owner) rally spec ECU.
Results from modifications can vary quite a lot, so it is quite hard to estimate a cars power figure.
To give you an example, my GTI-R put out a peak figure of 186kw (249bhp) at the wheels just two weeks ago.
...and the modifications it has are 3 inch exhaust from the stock dump pipe, HKS air filter, 16 psi and (I am told by previous owner) rally spec ECU.
P
pschurr
Guest
What gear will you measure it in Adam? And does it have street or rally gear ratios. Do we know what gear the 270-odd kw was achieved in?
It's all gonna depend on the tuning, and by that - how hard on the edge of lean-out and combustion chamber temps you wanna go just to get the big number. The problem there is that if it gets too hot in there and you get a big pre-detonation, you'll destroy the block unless you've already forged pistons and strong enough rods to keep the piston under control.
I'd think, though, that without longer/higher cams and adjustable cam wheels, you are not gonna be able to get enough charge into the chamber to keep it going as the rpm raises.
It's my opinion that external wastegates are NOT performance upgrades, and they don't do jack shit to make you go faster. It is a safety mechanism because an internal wastegate wasn't big enough to blow-by enough exhaust to stop the turbo from OVER-boosting. On a 2ltr running less than 2bar, my opinion is that its overkill, and the best thing is to buy the turbo that will flow what you want to flow (considering capacity and rpm thresholds).
Seriously, has ANYONE suffered overboost because the wastegate couldn't vent enough gas around the impeller?
good luck though
peter
It's all gonna depend on the tuning, and by that - how hard on the edge of lean-out and combustion chamber temps you wanna go just to get the big number. The problem there is that if it gets too hot in there and you get a big pre-detonation, you'll destroy the block unless you've already forged pistons and strong enough rods to keep the piston under control.
I'd think, though, that without longer/higher cams and adjustable cam wheels, you are not gonna be able to get enough charge into the chamber to keep it going as the rpm raises.
It's my opinion that external wastegates are NOT performance upgrades, and they don't do jack shit to make you go faster. It is a safety mechanism because an internal wastegate wasn't big enough to blow-by enough exhaust to stop the turbo from OVER-boosting. On a 2ltr running less than 2bar, my opinion is that its overkill, and the best thing is to buy the turbo that will flow what you want to flow (considering capacity and rpm thresholds).
Seriously, has ANYONE suffered overboost because the wastegate couldn't vent enough gas around the impeller?
good luck though
peter
A
AVOGTIR
Guest
yes. :lol:
i also ran a 10.1
i also ran a 10.1
Peter the power output is usually measured in 4th gear,
I have street gears in it 4 now,
If i dont get 250kw i wont be that worried as the turbo isnt really that big and the motor is still stock but we'll see how we go at the end of the month but i'll definantly let everyone know the power output i produce...
Adam
I have street gears in it 4 now,
If i dont get 250kw i wont be that worried as the turbo isnt really that big and the motor is still stock but we'll see how we go at the end of the month but i'll definantly let everyone know the power output i produce...
Adam
O
Odin
Guest
You must be planning to change your sig to LAG-JET then :lol:jap-jet said:
A
antilag
Guest
lol at vpulsar yeh me and him had this discussion
expect to hit full boost at around 6000rpm
expect to hit full boost at around 6000rpm
A
Anonymous
Guest
jap-jet said:
it should be easy figure maybe. not too sure about that 6000 full boost tho. thats a little scary
W
whelanm
Guest
less talk - more action...
and no.
18psi on that turbo wont do it.
more like 220kwatw.
and no.
18psi on that turbo wont do it.
more like 220kwatw.
W
whelanm
Guest
lol,
so are you going to try and use the T67?
You'll see full boost at around 4500-5000rpm with teh t67 i think.
It'll boggey up there though.
Are you using Nitrous?
btw - I'd be worrying about teh stock pistons and Rods once you start going over 200kw atw
Are you actually doing these mods to the car or is htis just a wish list?
so are you going to try and use the T67?
You'll see full boost at around 4500-5000rpm with teh t67 i think.
It'll boggey up there though.
Are you using Nitrous?
btw - I'd be worrying about teh stock pistons and Rods once you start going over 200kw atw
Are you actually doing these mods to the car or is htis just a wish list?
A
Allan GTI-R
Guest
who needs 250kw at the wheels when you have 18 inch Enkei G Zero's ?
respect 8)
respect 8)