WHAT'S THIS?! HTA35r is off the car??
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Joined: Jan 2008
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From: Gilbert
Put the car on the dyno today, again. I can see this engine being over 100 dyno pulls before March.
683 whp and 620 ft lbs. This is a new record for the car. 20 psi of boost at 4400 rpm, yes, this is on a 2 liter.
Now the car is going to sit until I get to this intake manifold testing. Hoping to find a few more HP there.
683 whp and 620 ft lbs. This is a new record for the car. 20 psi of boost at 4400 rpm, yes, this is on a 2 liter.
Now the car is going to sit until I get to this intake manifold testing. Hoping to find a few more HP there.
Wow those are some great #'s
I cant wait to see what the in/manifold nets you.J.
Evolved Member
Joined: Oct 2002
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Dave is there something inherently tough on an engine doing a dyno pull?
Controlled environment.. no heat soak.. seems to me pretty easy on engine compared to someone just terrorizing a car around a track or fast road use.
Controlled environment.. no heat soak.. seems to me pretty easy on engine compared to someone just terrorizing a car around a track or fast road use.
ifarted, it's already a record...on our dyno. No the torque peak is not at 4400 rpm. I said the car hits 20 psi at 4400 rpm. The 683 runs from about 6400-8000, it is on a slight climb but basically a flat line.
trevor, it made 713 actually on a Dynojet a month ago. The power here was then around 660'ish if I remember right. I'm just working this combination for all it's worth. I'm not one to just throw on larger turbos when I am looking for more power, that's the easy way out! haha
trevor, it made 713 actually on a Dynojet a month ago. The power here was then around 660'ish if I remember right. I'm just working this combination for all it's worth. I'm not one to just throw on larger turbos when I am looking for more power, that's the easy way out! haha
Boost and RPM are the two things that wear out an engine quickest. The more boost and RPM you want to run the sooner it is going to need to be serviced. So run after run at 40+ psi and 8,000+ rpm will eventually wear it out.
No way am I lightening the car, gutting this car is not in it's future.
lilrico, only difference between this engine and the two I just built for you are is my current engine is running aluminum rods. No other differences.
lilrico, only difference between this engine and the two I just built for you are is my current engine is running aluminum rods. No other differences.
Very nice #s David. Keep it up
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Joined: Apr 2006
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Nice numbers, David. Which fuel are beeing used? You can go realy fast down the strip with this awesome powerband, not only peak-hp that counts!
Did you logg your boostcurve? Does it go in surge alot?
Have you measured backpressure?
Did you logg your boostcurve? Does it go in surge alot?
Have you measured backpressure?
Last edited by EV0DRAG; Jan 23, 2008 at 07:30 AM.
David,
What all was changed through all of this testing?
If I'm following, you made 670 WHP on the full-race manifold and an FP GT3582HTR. Which turbine housing was this on though? The Garrett GT35 housing with the large diffuser and 3" outlet? Or the smaller 2.5" T31 4-bolt housing? 0.82 A/R, correct?
Then you changed to the custom straighter runner manifold with the 0.82 A/R Tial V-band turbine housing on the same CHRA. At this same time, you also changed to a completely new bottom end with aluminum rods and new pistons? Same head as before? Any head work (freshing up the valve seats)? On this combination, the motor made ~640 WHP correct? Was the motor broken in on the dyno or did the motor have a few heat cycles before this testing?
The most recent setup is the aluminum rod motor with an unnamed turbine housing and manifold, no other changes from the Tial V-band testing, correct?
What all was changed through all of this testing?
If I'm following, you made 670 WHP on the full-race manifold and an FP GT3582HTR. Which turbine housing was this on though? The Garrett GT35 housing with the large diffuser and 3" outlet? Or the smaller 2.5" T31 4-bolt housing? 0.82 A/R, correct?
Then you changed to the custom straighter runner manifold with the 0.82 A/R Tial V-band turbine housing on the same CHRA. At this same time, you also changed to a completely new bottom end with aluminum rods and new pistons? Same head as before? Any head work (freshing up the valve seats)? On this combination, the motor made ~640 WHP correct? Was the motor broken in on the dyno or did the motor have a few heat cycles before this testing?
The most recent setup is the aluminum rod motor with an unnamed turbine housing and manifold, no other changes from the Tial V-band testing, correct?
The turbo does not surge, none. I am using C16 for fuel. I am not currently measuring back pressure but the car is wired for the sensor and I have done a lot of back pressure measurement in the past on this turbo.
The car made (as printed on the dyno sheet) 669 and 603 ft lbs on the Full Race header and HTA35r. This was on the old engine/head etc.
I then changed the shortblock, BR header and multiple turbine housings.
The head was untouched, nothing done, just bolted back on to the new shortblock. Shortblock is identical except for the difference in the rod weight which is minimal. Turbo is identical too.
Engine was broken in on the dyno as always.
The newest turbine housing is also bolted to another header. Header is very similar to the header for the Tial housing but obviously with the V-band connection I could not bolt up anything other than the Tial housing to it.
Hope that answers everything.
The car made (as printed on the dyno sheet) 669 and 603 ft lbs on the Full Race header and HTA35r. This was on the old engine/head etc.
I then changed the shortblock, BR header and multiple turbine housings.
The head was untouched, nothing done, just bolted back on to the new shortblock. Shortblock is identical except for the difference in the rod weight which is minimal. Turbo is identical too.
Engine was broken in on the dyno as always.
The newest turbine housing is also bolted to another header. Header is very similar to the header for the Tial housing but obviously with the V-band connection I could not bolt up anything other than the Tial housing to it.
Hope that answers everything.