Hit the rollers again, 93oct, 25psi, TI trim - MY350Z.COM Forums



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Old 01-25-2017, 07:50 PM   #1
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Default Hit the rollers again, 93oct, 25psi, TI trim

Pretty sure most the OGs know my build. But it's also in this section. It's been running great on this new motor for over a year now. Many road racing track days, autoX events and a good bit of pulls in NOV at Wannagofast half mile where I managed a 160mph. Finally after a year got the car on the rollers. Here's how she did. Car was tuned by Ray at RZG motorsports, graph has a slight dip around 5k Rpm where my boost a pump kicks in which was not very visible in the logs but it's being addressed. Not bad for a remote tune. We will tweak it soon till it's perfect 👌🏽






https://m.youtube.com/watch?feature=youtu.be&v=fwyOkIaYy28

https://m.youtube.com/watch?feature=...&v=fwyOkIaYy28

Last edited by Colombo; 01-26-2017 at 03:07 PM.
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Old 01-25-2017, 07:55 PM   #2
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Old 01-25-2017, 08:33 PM   #3
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thats alot of boost for 93...running meth?
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Old 01-25-2017, 08:43 PM   #4
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Wonder what you could do on e85
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Old 01-25-2017, 11:54 PM   #5
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That's funny I literally just came across your video on YouTube last night.

I know by that do work rail and that open to open waste gate lol
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Old 01-26-2017, 01:54 AM   #6
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Wonder what you could do on e85
id estimate 750/610
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Old 01-26-2017, 03:19 AM   #7
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Originally Posted by nomyth46 View Post
thats alot of boost for 93...running meth?
no meth, I run a few gallons of race gas/gas additive for road racing just for det protection. Not tuned for the fuel/fuel additive. Tuned on pure 93
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Old 01-26-2017, 08:15 AM   #8
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I did not think the Ti trim would make that much on 93 octane, 706whp Woooooooo

That's 830 hp at the crank.

On VP C16 with a tune, you would make another 80-100whp or so.

Could you refresh me on the Blower Speed again, Serp and Cog Pulleys, and what the rev limiter is set at? Thanks.....

Awesome Job......
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Old 01-26-2017, 09:19 AM   #9
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Quote:
Originally Posted by OldManZ350 View Post
I did not think the Ti trim would make that much on 93 octane, 706whp Woooooooo

That's 830 hp at the crank.

On VP C16 with a tune, you would make another 80-100whp or so.

Could you refresh me on the Blower Speed again, Serp and Cog Pulleys, and what the rev limiter is set at? Thanks.....

Awesome Job......
yea she would be crazy on race gas,

off top of my head I cannot remember impeller speed,

3.12 pulley, stock cog setup, 7600rpm w ATI crank
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Old 01-26-2017, 09:27 AM   #10
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Quote:
Originally Posted by OldManZ350 View Post
I did not think the Ti trim would make that much on 93 octane, 706whp Woooooooo

That's 830 hp at the crank.

On VP C16 with a tune, you would make another 80-100whp or so.

Could you refresh me on the Blower Speed again, Serp and Cog Pulleys, and what the rev limiter is set at? Thanks.....

Awesome Job......
Do it!! Do it!!!

We need another 1,000 hp Z in this world
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Old 01-27-2017, 08:24 AM   #11
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Just awesome! The myth that you can't run big boost on high compression should disappear.

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Old 01-27-2017, 08:38 AM   #12
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Quote:
Originally Posted by Colombo View Post
yea she would be crazy on race gas,

off top of my head I cannot remember impeller speed,

3.12 pulley, stock cog setup, 7600rpm w ATI crank
Your impeller speed is 68137.7 btw.
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Old 01-27-2017, 08:51 AM   #13
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Originally Posted by BluestreamDE View Post
Just awesome! The myth that you can't run big boost on high compression should disappear.
I still never understood this...

I always knew low compression was the key for boost... but on reading lowering compression lowers the power output of that force. So to gain those forces back you need to raise the boost. Which I know a lot of people like this for boost because you can run higher boost levels.


But why would you wanna do this? Why lower compression to run more boost to obtain the same amount of compression and output by having stock or higher compression with lower boost?

Can someone explain why lowering compression is good for boosting? If anything it just sounds like your making your turbo work harder to produce power due to lowered compression.

Example from what I've read..

10 psi of boost at 11:1 is 550 hp

But to get 550 hp at 9:1 you need to run 15 lbs

Why is that a good thing for boost? What benefit does lower compression do? Again it just sounds to me like your turbo and engine have to work a little harder by doing this. Idk how that's a good thing when typing to make power.

Last edited by CK_32; 01-27-2017 at 08:52 AM.
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Old 01-27-2017, 09:09 AM   #14
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From what I've read, your fuel octane lever has a big part in how aggressive you can run your timing on any car. If you run lower compression it helps reduce knock and detonation with boost but your low end power will be sluggish (less squeeze) so more boost is needed to make the same numbers a higher compression (more squeeze) motor would make running less boost. The higher the compression the lower the window of safety for knock/detonation. This is why higher rating fuels are needed to keep it at bay, like c16 e85 methanol etc. So you can get away with having more power on high compression safely as long as you use the correct fuel mixture. I'm sure someone with more knowledge than I can explain it better but I hope this helps you understanding this.
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Old 01-27-2017, 10:01 AM   #15
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Ohhh ok makes sense. I was always under the impression it was power related to produce more power this way. But for a safety to combat detonation makes complete sense why people would opt for this.

I was just thrown off after reading into all that before looking at what rods and pistons I wanted. This is my first non factory turbo build so a lot of new to me or just off base lol

Finally getting into the real good stuff going FI from scratch on my Z.
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Old 01-27-2017, 10:46 AM   #16
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How to you figure?

Show your math please

(My Blower Speed is 62,351rpm BTW)

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your impeller speed is 68137.7 btw.

Last edited by OldManZ350; 01-27-2017 at 10:57 AM.
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Old 01-27-2017, 11:51 AM   #17
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[Crankshaft pulley size Serpentine Pulley size] x [Jackshaft pulley size Drive cog pulley size] x [Step up ratio x Max engine rpm]

[6.780 (ATI Super damper) 3.12 pulley] x [32 Jackshaft 28 SC cog (stock pulley setup for DE Mon Rev)] [3.61 (Step up ratio for V2 Ti from Vortech site) 7600rpm limit]

(6.780 3.12) x (3228) x (3.617600)= 68137.75
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Old 01-27-2017, 05:45 PM   #18
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My Bad......

I had in my head 6-1/8" diameter for the Fluid Damper, thinking that's what the ATI was......

He is cranking on that Blower, but it's an HD so it shold hold up just fine.


Quote:
Originally Posted by BluestreamDE View Post
[Crankshaft pulley size Serpentine Pulley size] x [Jackshaft pulley size Drive cog pulley size] x [Step up ratio x Max engine rpm]

[6.780 (ATI Super damper) 3.12 pulley] x [32 Jackshaft 28 SC cog (stock pulley setup for DE Mon Rev)] [3.61 (Step up ratio for V2 Ti from Vortech site) 7600rpm limit]

(6.780 3.12) x (3228) x (3.617600)= 68137.75
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Old 01-27-2017, 06:41 PM   #19
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No worries. I'm happy to see Vortechs making as much power in here with some pretty mean and well put together setups. I really would like to see Aboodi post more on his Z with the YSI, 11.1 compression and e85 pushing almost 30psi. I don't have Facebook so I can't see his updates but saw his YouTube video recently.

https://youtu.be/oaKPGbEIo_s
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Old 01-27-2017, 08:38 PM   #20
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I will talk to him about that as we talk by phone at least 3 times a week.

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No worries. I'm happy to see Vortechs making as much power in here with some pretty mean and well put together setups. I really would like to see Aboodi post more on his Z with the YSI, 11.1 compression and e85 pushing almost 30psi. I don't have Facebook so I can't see his updates but saw his YouTube video recently.

https://youtu.be/oaKPGbEIo_s
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