496rwhp 20psi TD61( Gt35R comp )
Thread Starter
Joined: Dec 2001
Posts: 7,174
Likes: 236
From: Twin Cities, MN
496rwhp 20psi TD61( Gt35R comp )
Large Port 2nd gen
TD61( 1.15 P trim GT35R BB)
400cc 50/50 water alcohol with 91 pump
3" exhaust, open waste gate
HKS DLI, Greddy 10s
Ran out of fuel at 5200~ish rpms as you can see the torque curve drops off. Peak torque was 467. Pump is a rewired single walbro. Going to be adding a 2nd possibly, or lowering the boost pressure. Didn't really think this thing would make this much power. Probably following up with a completed dyno etc..
Turbo http://www.turblown.net/store/index.php?productID=10
TD61( 1.15 P trim GT35R BB)
400cc 50/50 water alcohol with 91 pump
3" exhaust, open waste gate
HKS DLI, Greddy 10s
Ran out of fuel at 5200~ish rpms as you can see the torque curve drops off. Peak torque was 467. Pump is a rewired single walbro. Going to be adding a 2nd possibly, or lowering the boost pressure. Didn't really think this thing would make this much power. Probably following up with a completed dyno etc..
Turbo http://www.turblown.net/store/index.php?productID=10
damn! something for me to look into. i'm trying to trade right now from a gt40r for something smaller because i have stock ports. i wouldnt expect this power but the potential would be nice
Thread Starter
Joined: Dec 2001
Posts: 7,174
Likes: 236
From: Twin Cities, MN
Haltech e6k.
Another interesting observation we made. This car has a HUGE ebay FMIC( put on by another shop) and our shop car used to have the same turbo, same water/alcohol injection, same psi, same outside temp the greddy 2 core fmic has 30 deg F lower inlet temps. I've heard this before, but never really used a ebay FMIC.
Another interesting observation we made. This car has a HUGE ebay FMIC( put on by another shop) and our shop car used to have the same turbo, same water/alcohol injection, same psi, same outside temp the greddy 2 core fmic has 30 deg F lower inlet temps. I've heard this before, but never really used a ebay FMIC.
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Thread Starter
Joined: Dec 2001
Posts: 7,174
Likes: 236
From: Twin Cities, MN
550/1680s, 40psi base plus 200cc of meth
Ambient temp was kinda high today, near 100 F.
Intake temps were 113 F during the pulls.
And yes it needs bigger primaries, or move to the ID2000s...
Ambient temp was kinda high today, near 100 F.
Intake temps were 113 F during the pulls.
And yes it needs bigger primaries, or move to the ID2000s...
Thread Starter
Joined: Dec 2001
Posts: 7,174
Likes: 236
From: Twin Cities, MN
Here is a good example;
https://www.rx7club.com/showthread.p...light=1Revvin7
Haltech e6k.
Another interesting observation we made. This car has a HUGE ebay FMIC( put on by another shop) and our shop car used to have the same turbo, same water/alcohol injection, same psi, same outside temp the greddy 2 core fmic has 30 deg F lower inlet temps. I've heard this before, but never really used a ebay FMIC.
Another interesting observation we made. This car has a HUGE ebay FMIC( put on by another shop) and our shop car used to have the same turbo, same water/alcohol injection, same psi, same outside temp the greddy 2 core fmic has 30 deg F lower inlet temps. I've heard this before, but never really used a ebay FMIC.
Thread Starter
Joined: Dec 2001
Posts: 7,174
Likes: 236
From: Twin Cities, MN
Yes. 8.5:1
It makes similar torque to hp because the run was ended early and the Rpms didn't go that high, this car with a bigger pump/injectors will probably make over 550 rwhp.
Using water/alcohol usually seems to make a lot more torque. I tuned a car 6 years ago with it off, turned it on and gained 30 ft lbs of torque. This was on a vehicle only making 350rwhp too.. I also did an evo years ago, and just by turning less than 200cc of water on it picked up 20awdtq @ 440~ishrwhp( don't remember exact power levels)
I believe the port style is helping power a lot too, but killing down low..
It makes similar torque to hp because the run was ended early and the Rpms didn't go that high, this car with a bigger pump/injectors will probably make over 550 rwhp.
Using water/alcohol usually seems to make a lot more torque. I tuned a car 6 years ago with it off, turned it on and gained 30 ft lbs of torque. This was on a vehicle only making 350rwhp too.. I also did an evo years ago, and just by turning less than 200cc of water on it picked up 20awdtq @ 440~ishrwhp( don't remember exact power levels)
I believe the port style is helping power a lot too, but killing down low..
Wow...this is on a mustang dyno too! The port work must be large indeed. Any info on the port work that was done?
What were the EGT at 20 psi? How much more do you think this turbo has in it? 25 psi capable? the standard 35r seems to top out at around 22-23 psi from what I have read.
What were the EGT at 20 psi? How much more do you think this turbo has in it? 25 psi capable? the standard 35r seems to top out at around 22-23 psi from what I have read.
Damn! Great numbers! How does this turbo compare to a T04Z?? I have a T04S on my car right now, but I'd like to eventually go with a T04Z or something similiar so I can try for 500+whp. I'm going to send you a PM..
Thanks!
Thanks!
talking head
Joined: Apr 2008
Posts: 2,775
Likes: 15
From: Perth, WA, OZ
no ,, its just that the greddy one has magic in it
113-30= 83 F,, whilst ambient was near 100
that magic greddy intercooler is 120% thermally efficient
and nobody has yet compared the pressure drop across the compared pair to give all the relevant comparisons
also,, using figures posted for only this china cooler
if the ambient is 100 F and the china cooler is delivering 113 F , and boost pressure is 20 psi
its working bloody well ,, i would be happy if i only had a 6 C ( 13 F ) rise with the stock 7 psi boost
Ambient temp was kinda high today, near 100 F.
Intake temps were 113 F during the pulls.
Intake temps were 113 F during the pulls.
This car has a HUGE ebay FMIC( put on by another shop) and our shop car used to have the same turbo, same water/alcohol injection, same psi, same outside temp the greddy 2 core fmic has 30 deg F lower inlet temps.
that magic greddy intercooler is 120% thermally efficient
and nobody has yet compared the pressure drop across the compared pair to give all the relevant comparisons
also,, using figures posted for only this china cooler
if the ambient is 100 F and the china cooler is delivering 113 F , and boost pressure is 20 psi
its working bloody well ,, i would be happy if i only had a 6 C ( 13 F ) rise with the stock 7 psi boost
talking head
Joined: Apr 2008
Posts: 2,775
Likes: 15
From: Perth, WA, OZ
maximum thermal intercooler efficiency matched with the lowest pressure drop equals the highest mass flow
the examples above,, have the sums skewed due to inlet charge volumetric displacement by the water methanol mix
comparing "ebay" V Greddy as you have above with only inlet temps and outlet pressure
-- is only part of the picture
with no direct comparison of pressure upstream and down stream of the intercooler in each example
then how do you know which intercooler outflows the other?
the china Ebay one has just made 496 rwhp !
it is very likely that--
because the turbo is only losing perhaps 2 psi across the china bar and plate / plate tube fin hybrid design
-- and not perhaps as much 5 psi like in some "branded " tube and fin jap ones
so,, in the lower PD intercooler example
the turbo is working at effectively a lower discharge pressure
( directly off the compressor )
for the same 20 psi inlet pressure at the engine
and conceding only ( ? 30 F ) in heat
--------------
the BIG difference,,
all this airflow is exerting a much lesser exhaust backpressure cost onto the engine
--hence that same turbo sits in the fat end of its efficiency envelope--
and the engine makes more power
the examples above,, have the sums skewed due to inlet charge volumetric displacement by the water methanol mix
comparing "ebay" V Greddy as you have above with only inlet temps and outlet pressure
-- is only part of the picture
with no direct comparison of pressure upstream and down stream of the intercooler in each example
then how do you know which intercooler outflows the other?
the china Ebay one has just made 496 rwhp !
it is very likely that--
because the turbo is only losing perhaps 2 psi across the china bar and plate / plate tube fin hybrid design
-- and not perhaps as much 5 psi like in some "branded " tube and fin jap ones
so,, in the lower PD intercooler example
the turbo is working at effectively a lower discharge pressure
( directly off the compressor )
for the same 20 psi inlet pressure at the engine
and conceding only ( ? 30 F ) in heat
--------------
the BIG difference,,
all this airflow is exerting a much lesser exhaust backpressure cost onto the engine
--hence that same turbo sits in the fat end of its efficiency envelope--
and the engine makes more power