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Nelson Racing Engines?

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Old Jun 11, 2011 | 05:46 AM
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Default Nelson Racing Engines?

I've been lurking hear for some time while I plan my C6 project....Great site!

I've been looking at Nelson Racing Engines for a street functionable Texas Mile project. http://www.nelsonracingengines.com/p..._454lsx_tt.pdf
For the build quality 36K seems like a fair price?
Ignoring all the marketing BS what do you guys think?

From what I see it will costs a great deal more to pay a competent shop to assemble a good turbo setup?

I have an amazing collection of melted, twisted, and otherwise mangled paper weights (from past projects) to know DIY is not the right option for me.

Anyone you can suggest that can produce something similar?

Thanks in advance!
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Old Jun 11, 2011 | 06:24 AM
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Originally Posted by Snapoff
I've been lurking hear for some time while I plan my C6 project....Great site!

I've been looking at Nelson Racing Engines for a street functionable Texas Mile project. http://www.nelsonracingengines.com/p..._454lsx_tt.pdf
For the build quality 36K seems like a fair price?
Ignoring all the marketing BS what do you guys think?

From what I see it will costs a great deal more to pay a competent shop to assemble a good turbo setup?

I have an amazing collection of melted, twisted, and otherwise mangled paper weights (from past projects) to know DIY is not the right option for me.

Anyone you can suggest that can produce something similar?

Thanks in advance!
No engine builder does a better twin turbo setup than Nelson Racing. Their Symmetrical Twins are a knockout from an aesthetic point of view.

I don't how much Corvette experience they have, but I suspect they will when done.

The pricing is high, and you would be much better off with a Katech motor, built by them, forum sponsors, and the guys who helped bring the Gen IV motor to frutation with their R&D for GM years ago.

You rarely if ever see their motors go South. They make their own special bottom end for their TT and SC motors.

If Nelson is fabricating the turbo setup, I would have them do everything to their standards.

Forged pistons, rods and crank are a MUST, but the stock Z06 crank should support most any power level.

Jim
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Old Jun 11, 2011 | 10:24 AM
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Agreed with the above statement.If you can afford the 36K NRE is the way to go. This statement is in now way putting down the many other capable builders at all. Katech is also another way to go.
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Old Jun 11, 2011 | 11:24 AM
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That will definitely work...Tom Nelson will deliver. Feel free to PM me if you need any further info.


Originally Posted by Snapoff
I've been lurking hear for some time while I plan my C6 project....Great site!

I've been looking at Nelson Racing Engines for a street functionable Texas Mile project. http://www.nelsonracingengines.com/p..._454lsx_tt.pdf
For the build quality 36K seems like a fair price?
Ignoring all the marketing BS what do you guys think?

From what I see it will costs a great deal more to pay a competent shop to assemble a good turbo setup?

I have an amazing collection of melted, twisted, and otherwise mangled paper weights (from past projects) to know DIY is not the right option for me.

Anyone you can suggest that can produce something similar?

Thanks in advance!
Reply
Old Jun 11, 2011 | 12:05 PM
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I am retiring in September and will be running our turbo CBX out there for his fabrication on a new header system.

The one on our bike is old and I designed the engine engine to hold over 400 HP in the 6 cylinder bike back in 1989. The billet aluminum block was carved out of a 65lb chunk of 6061T6 aluminum, fins and all and I engineered special sleeves to bring the stock displacement from 1046cc to 1548cc.

The CBX bike back in 1979 was a simply amazing bike with the exact performance numbers of the old ZR1. 11.5s at around 118 in the quarter mile. My maiden run at Las Vegas was a 9.69 @ 150 mph with the rear slick lighting up all the way to the end of the 1/4 mile.

We are putting a GT35R turbo onboard, and taking off the original ATP setup. A long trip to be sure, but I suspect worth it.
Cycle World Article from 1989:
http://www.cbxclub.com/davespage/cw89-1.html http://www.cbxclub.com/davespage/cw89-2.html

Good luck. Can't wait to see the result.

Last edited by Halltech; Jun 11, 2011 at 12:07 PM.
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Old Jun 12, 2011 | 03:56 AM
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Thanks for the input all!

Halltech Jim,
I looked up Katech's turbo/blower long block and with stoch heads it is 21k. Does Katech build turbo systems?

I was sort of thinking the NRE turbos, BOV's, intake, ignition, trick headers, ported heads, dual fuel system, detailed polishing, engine management system, and a ready to go package would be hard to replace for $14k?

That said your experience is clear and I am all ears to your (and others) advice.
I am not gentle with my vehicles. If there is a weakness in the system I will find it.
By the school of hard knocks I have learned to like it done right the first time....Money saved is relative if you have to deal with smashed and smoldering parts.

The CBX was a bad *** bike!
96 hp IIRC!
I remember your build!
So far ahead of the normal build of the day...WOW!
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Old Jun 12, 2011 | 09:42 AM
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Originally Posted by Snapoff
Thanks for the input all!

Halltech Jim,
I looked up Katech's turbo/blower long block and with stoch heads it is 21k. Does Katech build turbo systems?

I was sort of thinking the NRE turbos, BOV's, intake, ignition, trick headers, ported heads, dual fuel system, detailed polishing, engine management system, and a ready to go package would be hard to replace for $14k?

That said your experience is clear and I am all ears to your (and others) advice.
I am not gentle with my vehicles. If there is a weakness in the system I will find it.
By the school of hard knocks I have learned to like it done right the first time....Money saved is relative if you have to deal with smashed and smoldering parts.

The CBX was a bad *** bike!
96 hp IIRC!
I remember your build!
So far ahead of the normal build of the day...WOW!
We were at an estimated 375 HP, and had NOS onboard that I never used. 22 PSI boost was plenty.

Yes they do, but they would use another Mfg. turbo setup. I would go with their SC setup.

They have one that is 50 State Legal now. Another cool option would be to build a Z06 motor bottom up for 900 HP, and slap on the Whipple SC or even a ZR1 SC. You would likely have to use different heads though to port match the blower.

Once you get past 600 RWHP it all goes up in smoke anyway, and is totally unusable power. I know.
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Old Jun 13, 2011 | 01:08 AM
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This will solve those traction problems : http://www.racelogic.co.uk/index.php...action-control

Will make all your horsepower very usable ;-)
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Old Jun 13, 2011 | 02:25 AM
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Thanks Jim,

What sort of power level can you realistically stick down with slicks?
In case you haven't figured it out yet I am going to ignore your 600 hp advice .

I've also been wondering about driveline issues.
What breaks first?
The 6 speed, short shafts, or rear end itself?

I know there are fixes for the clutch (so I left it off the list), but are there 1000+rwhp capable fixes for the other soft parts?

Your not going to try running the CBX in Pro Street are you?
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Old Jun 13, 2011 | 02:30 AM
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Originally Posted by SteveRiellyNZ
This will solve those traction problems : http://www.racelogic.co.uk/index.php...action-control

Will make all your horsepower very usable ;-)
Not sure how you can pull fuel like that without the motor going lean?
Sounds a bit edgy on a serious forced induction setup?

NRE offers a gear selected boost control system that should help, but I suspect there is little help for the first 2 gears....Even at the lowest setting.

Thanks again folks!
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Old Jun 15, 2011 | 12:46 AM
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I'm sure there is a doc in their showing how it all works, but from memory its spark control, not leaning the system...they go to great lengths to ensure people know the correct operation.

It would work wonders on forced induction, esp' in low gears. You literally plant it, and hang on for dear life.

From a vette point of view, its pretty straightforward to connect, and modify the ECU (misfire detection I think it is needs to be turned off )
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