Dynoed the 74mm - New Best 835AWHP @ 46psi!

[twicks69]

I'm assumming your running a 2G head to?

1G head, unported everything MINUS slight port work around the backsides of the valves for flow with 1mm oversize valves. Ports and chambers are OEM, casting isn't even removed.

Updated mod list can be found here:
TMZ Performance

 

[Blurred Talon]

The radiator design is in the "quarter master prototype clutch" thread on like page 5 or so. There is a .pdf of what I designed and had C&R Racing fabricate up for me.

I see it now. I think it's a bit more then I need now for my cooling set up, I'll make do with an AFCO rad. Now to figure out how to plumb in the cooling lines for my MHI turbo with the EWP.

Very nice set up Tim!

 

[twicks69]

I see it now. I think it's a bit more then I need now for my cooling set up, I'll make do with an AFCO rad. Now to figure out how to plumb in the cooling lines for my MHI turbo with the EWP.

Very nice set up Tim!

Thanks man! I have alot of time into trial/error with this car and this setup has been rock solid for the duration of time I have used it.

 

[coltboostin]

Sorry to bring back the dead horse-but

An upgraded TB isn't really needed. It would do him good but many people use stock TB's and run lhigh 8's with them.

?

Name ONE. I hate researching info and seeing misinformation. If I am incorrect-I woudl like to sees some facts to base my next set up on. Find me one, maybe 2 DSM's in the 8's on a 60mm TB and 2.5 inch plumbing. PLEASE! This will save me some time this winter.

All of the mathmatical information I have lends to going 3inch when you are getting over the 900CFM area.

 

[JusMX141]

Find me one, maybe 2 DSM's in the 8's on a 60mm TB and 2.5 inch plumbing. PLEASE! This will save me some time this winter.

Hopefully TalonDave this coming season. His 9.67 @ 151 pass was done with a non-turbo throttle body and 2.5" piping along with a heavy chassis and a poor 60ft using an intercooler that was designed for a 16G.

Now with the caged chassis and an ETS 5" core hung on the car, he still has 2.5" piping and the same unmodded non-turbo throttle body that was on the car in 2011. The weight savings alone over the previous chassis should put the car a few MPH faster...enough to get in 8-second pass if the launch is worthy.

I guess if you want to get technical a non-turbo throttle body is a tiny bit of a size upgrade over a 1G turbo throttle body, but still considered an OEM part. No sense using a giant throttle body if the turbo's only 60mm, right?

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[danielsl1999gsx]

^^ I was wondering what ever happen to him, glad the car is still around.

 

[RWD4G63]

Out of curiosity, what oil are you running?

Why no porting? Just because?

 

[twicks69]

Sorry to bring back the dead horse-but




Name ONE. I hate researching info and seeing misinformation. If I am incorrect-I woudl like to sees some facts to base my next set up on. Find me one, maybe 2 DSM's in the 8's on a 60mm TB and 2.5 inch plumbing. PLEASE! This will save me some time this winter.

All of the mathmatical information I have lends to going 3inch when you are getting over the 900CFM area.

I haven't gotten the elusive 8-second pass yet, but I did have a few 130-132mph 1/8th mile trap speeds on 50-55psi range. I was doing 9.4's with 123mph 1/8th mph on 40psi this year also. Highest mph complete pass this year was only 154mph, I had wrecked the cylinder head and was lifting it severely for the entire 2012 season. I was also seeing these issues in 2011 and didn't realise that I completely shifted the cylinder head casting and stretched out the 7-bolt L19 head studs, and elongated the head stud holes and crushed the head stud washer seating surfaces.

Overall, still damn good considering the problems I was having, especially on top of the other breakage of stuff this year at the track.

Still on 1g 60mm throttle body and 2.5" ic pipes.

It is doable, but I don't know more than a handful of people who hit low 9's/high 8's on this.

 

[twicks69]

Out of curiosity, what oil are you running?

Why no porting? Just because?

Valvoline racing synthetic 20w50 (blue stuff with high zinc).

The only porting that is really a major benefit with 1mm oversized valves is the bowl work and allowing more air to go around the backside of the valve. The runners are completely stock ports.

 

[killercolt]

Great result twicks69. Keep up the good work. Thank for posting your timing table and experience with us.


I have been dying to do tests to see if 2.5" pipe make less power than 3". My guess is no since most turbo outlet is only 2.5" on the outside diameter. A turbo like your might have an inside diameter of 2.5" at the turbo outlet. I don't see how 3" pipe can make much different when you have a restriction at the turbo outlet. We will see.

 

[JusMX141]

Tim's car is insane- one of my favorite 2G's for sure. All that power and torque and the car looks 100% stock on street tires despite a FMIC peeking out at you. Love it!

Huge props to Tim to still have the drive and motivation to keep this car on the road and track despite all the driveline issues due to the weight of the car and the torque the stroker produces.

 

[coltboostin]

A turbo like your might have an inside diameter of 2.5" at the turbo outlet. I don't see how 3" pipe can make much different when you have a restriction at the turbo outlet. We will see.

Your thinking is flawed-for example the actual ID of the turbo outlet of a standard s cover is about 1.7 inches. In my research-I had a spare I cut up to measure. Where I took the measurement was at the end of the compressor discharge surface- highlighted here here as area

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with that line of thinking-you could run a 43mm TB on a 6766(S) and see no gain from going larger on the TB. That is obviously not the case, and simply not how fluid dynamics works. I hope that highlights where I am coming from.

Hopefully TalonDave this coming season. His 9.67 @ 151 pass was done with a non-turbo throttle body and 2.5" piping along with a heavy chassis and a poor 60ft using an intercooler that was designed for a 16G.

Now with the caged chassis and an ETS 5" core hung on the car, he still has 2.5" piping and the same unmodded non-turbo throttle body that was on the car in 2011. The weight savings alone over the previous chassis should put the car a few MPH faster...enough to get in 8-second pass if the launch is worthy.

I guess if you want to get technical a non-turbo throttle body is a tiny bit of a size upgrade over a 1G turbo throttle body, but still considered an OEM part. No sense using a giant throttle body if the turbo's only 60mm, right?

So, that answer is NO. Again, not trying to stir the pot, and I was not questioning that good power could be made on a 60mm TB-I juts did not like that someone said "a few cars have ran 8's" when that is 100% false. This is a ongoing debate, and there is no room for misinformation.

As for TalonDave-the 7 tenths of a second is a HUGE gap when talking about going from the 9's to the 8's, but I wish him luck!

I haven't gotten the elusive 8-second pass yet, but I did have a few 130-132mph 1/8th mile trap speeds on 50-55psi range. I was doing 9.4's with 123mph 1/8th mph on 40psi this year also. Highest mph complete pass this year was only 154mph, I had wrecked the cylinder head and was lifting it severely for the entire 2012 season. I was also seeing these issues in 2011 and didn't realise that I completely shifted the cylinder head casting and stretched out the 7-bolt L19 head studs, and elongated the head stud holes and crushed the head stud washer seating surfaces.
Overall, still damn good considering the problems I was having, especially on top of the other breakage of stuff this year at the track.
Still on 1g 60mm throttle body and 2.5" ic pipes.
It is doable, but I don't know more than a handful of people who hit low 9's/high 8's on this.

You car runs great- but I think you would also agree that going 8's in not a matter of make x HP, cut Y 60 foot, net Z time.

The reason I am looking into this is for the new Colt-goals for this year are 9.xx and to trap 160mph. On a budget setup-you have to look at every avenue for cutting corners to save money-one of which is the benefit of an upgraded TB, and what intercooler to run. Its an issue due to limited space up front, I have several intercoolers to choose from, but the lager units will require a ton of work-its set up with 2.5 in and out now, but at this point I am 100% convinced over 700whp (in terms of airflow-over 950cfm area-obviously whp numbers may vary), you will see a benefit in 3inch Cold side plumbing and TB. Mathematically speaking using equations designed for fluid dynamics.

I think at this point, I will try it with 2.5 cold side plumbing/stock TB since thats what on the car now- and see hwp and see how far that takes me. I am confident though once I am nearing 800whp that I will see a gain when I bump the size on the cold side.

 

[945liter]

Hopefully TalonDave this coming season. His 9.67 @ 151 pass was done with a non-turbo throttle body and 2.5" piping along with a heavy chassis and a poor 60ft using an intercooler that was designed for a 16G.

What do you consider a "heavy chassis" ? I'd imagine that car was 26xxlbs before cutting the front end.

Maybe heavy compared to Jeff or shep but i don't think heavy chassis is correct .

Curious on what it weighed.



Coltboostin I can't give any insight because my car is slow and doesn't run 8s. I was on 33psi with issues, but i run a 6266 with a 2.5 hotside into a 3inch cold side with a s90 TB.

 

[coltboostin]

Coltboostin I can't give any insight because my car is slow and doesn't run 8s. I was on 33psi with issues, but i run a 6266 with a 2.5 hotside into a 3inch cold side with a s90 TB.

Your funny.

Did you ever run it on a 2.5 and stock TB with that set up?

 

[crash89]

Name ONE. I hate researching info and seeing misinformation. If I am incorrect-I woudl like to sees some facts to base my next set up on. Find me one, maybe 2 DSM's in the 8's on a 60mm TB and 2.5 inch plumbing. PLEASE! This will save me some time this winter.

A close buddy of mine went 5.91 @ 119 in the 1/8 this year on a stock tb and 2.5 IC piping. Never got a full pass in due to some small issues. Definitely good for 8s..

 

[coltboostin]

A close buddy of mine went 5.91 @ 119 in the 1/8 this year on a stock tb and 2.5 IC piping. Never got a full pass in due to some small issues. Definitely good for 8s..

Great pass, but potential is not reality.

Also-He would have to be on a miracle pass to get an 8 out of that in an AWD DAM-especially if its an Auto whoch wll not MPH like a 5 speed. It should like it gets out of the hole REALLY well, but I dont think he has the power (MPH) to get there

Check these out- 1/8 mile times and MPH noted

#38 Matos Jhojan 9.026 151.70 5.768 122.05 0.000 No
#39 David Buschur 9.041 159.64 5.886 123.14 1.426

#40 Brian Portilla 9.084 160.52 5.994 124.34 1.510 Precision

#41 Raif Fejzo 9.092 164.10 5.875 128.60 1.397 42R02 No

#42 Tony Powell 9.200 157.90 5.883 124.41 1.465 FP 3586 No

#43 Hector Cabrera 9.213 155.44 6.020 120.69 1.428 Greddy T88h

 

[crash89]

That particular pass, with blowing an IC pipe off just past the 1000' went 9.2 @ 144.

 

[95talongirl]

Not sure how I missed this thread, but nice work! Also did not know the Kia Optima ran a 4g64.

 

[rhamlinii]

A close buddy of mine went 5.91 @ 119 in the 1/8 this year on a stock tb and 2.5 IC piping. Never got a full pass in due to some small issues. Definitely good for 8s..

What's the Mod list for your friends car?

 

[little-razcal]

What do you consider a "heavy chassis" ? I'd imagine that car was 26xxlbs before cutting the front end.

Maybe heavy compared to Jeff or shep but i don't think heavy chassis is correct .

Curious on what it weighed.



Coltboostin I can't give any insight because my car is slow and doesn't run 8s. I was on 33psi with issues, but i run a 6266 with a 2.5 hotside into a 3inch cold side with a s90 TB.

I just talked to Dave the other day, and I think he told me 3050+ lbs was the weight of the old shell he ran 9.5 with. His new shell came from Nate Chrisman I believe, and he estimates it's a good 600# lighter. He has yet to make a pass in this car. Are you sure your not thinking of John Wigger?

 

[kp116]

Great pass, but potential is not reality.

Also-He would have to be on a miracle pass to get an 8 out of that in an AWD DAM-especially if its an Auto whoch wll not MPH like a 5 speed. It should like it gets out of the hole REALLY well, but I dont think he has the power (MPH) to get there

Check these out- 1/8 mile times and MPH noted

#38 Matos Jhojan 9.026 151.70 5.768 122.05 0.000 No
#39 David Buschur 9.041 159.64 5.886 123.14 1.426

#40 Brian Portilla 9.084 160.52 5.994 124.34 1.510 Precision

#41 Raif Fejzo 9.092 164.10 5.875 128.60 1.397 42R02 No

#42 Tony Powell 9.200 157.90 5.883 124.41 1.465 FP 3586 No

#43 Hector Cabrera 9.213 155.44 6.020 120.69 1.428 Greddy T88h

He is referring to my car. I know that pass wouldn't have been a 8 second pass but for a 3100lb auto car on only 36psi with a converter thats probably only 15% efficient or less and a shit intercooler that gains 80-90 degrees on a full pass its making some decent power and I believe the potential for a 8 second pass on that set up was acheiveable.

 

[crash89]

I was tryin to keep it on the dl kenny by not sayin who!! Cats outa the bag now

 

[twicks69]

Well, I already know that he is faster than me. Sort of our little own WI 8-second goal rivalry. Currently he is winning!

My porker 5-speed will get there, but I am taking my time.

 

[crash89]

I figured you already knew who I was talking about anyways Tim! haha! You big dogs kinda make me angry some times!! I havent been able to have a "good" pass in my spyder EVER! Havent ran a faster time than a 13.90.. and you guys are going for 8s! I hate you!!

 

[coltboostin]

He is referring to my car. I know that pass wouldn't have been a 8 second pass but for a 3100lb auto car on only 36psi with a converter thats probably only 15% efficient or less and a shit intercooler that gains 80-90 degrees on a full pass its making some decent power and I believe the potential for a 8 second pass on that set up was acheiveable.

Fair enough! Stock TB and 2.5 IC cold side? What intercooler were you running?