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M62 Swap...

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IMO the TVS is a much better options for us than an M112 and people jizz their pants when someone swaps one of those. The preliminary estimates put the cost of this right about what the average GenV swap cost just a couple years ago.
 
m112 has higher parasitic loss due to rotor mass.

So yes, lighter rotors would be nice.

I've seen some auzzies drill their rotors for around a 1/3 weight reduction.
 
98GrandPrixIraqVet said:
Still say injectors retune and an IC will spank anything this TVS is gonna do!!
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I may not pickup 1 horsepower from injectors, this is just a theory right now. Sure I was knocking a little when I was commanding 20 degrees of timing... but down at 16-17.5 it almost never knocks.

The TVS will be non-intercooled and I firmly believe it will rival numbers from full size intercooled GenV's.
 
You realize a full size IC can gain 40-50 WHP pretty easy? Gaining 40-50 WHP from that TVS is not going to happen.

Mark those words and I'll be happy for you if you make me eat them and prove me wrong!

Until then Im saying told you so
 


98GrandPrixIraqVet said:
You realize a full size IC can gain 40-50 WHP pretty easy? Gaining 40-50 WHP from that TVS is not going to happen.

Mark those words and I'll be happy for you if you make me eat them and prove me wrong!

Until then Im saying told you so
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Well we are on polar opposite ends of the spectrum here because 40-50whp is exactly what I'm aiming for with apple to apple comparisons vs my GenV setup. I figure I'm going to make 15-20whp right off the bat with the less drag.
 
And im still saying I highly doubt 40-50 HP from a TVS compared to the Gen5.
Their is nothing apple to apple about this when your comparing a TVS vs a Gen5
 


SnowFlake said:
I'm saying the only difference in my setup will be the blowers.
Just curious... what do you think I'll pick up for power?
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On the same pulley as now? LOSE power With out adding injectors LOSE power, Tune will be needed no doubt so I'll give you that. We already know the TVS should be spinning 1/3 faster than the Gen5 to compensate for the smaller size. Throw the effeciency thing out the window for a min no matter what it will have to spin faster. I seriously do not think over a 30 HP gain.
 
SnowFlake said:
No I'm JuniorN316 from RegalGS.org
The guy who was doing free tuning for anyone who wanted it.
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No offense but I wouldnt let you tune anything I drive because the fact yours knocks. Temperature and altitude alone would make a difference on the knocking.

On another note I live in ND and I can get 89 91 93 112 and E85. Sucks to live else where huh ?

Matt I said throw the effeciency thing out the window for a min like I said the effeciency has to do with the temp I got that but its simply not going to move the same volume of air with the same pulley therefore it HAS to spin faster no way around that!!!!!
 
98GrandPrixIraqVet said:
No offense but I wouldnt let you tune anything I drive because the fact yours knocks. Temperature and altitude alone would make a difference on the knocking.

On another note I live in ND and I can get 89 91 93 112 and E85. Sucks to live else where huh ?

Matt I said throw the effeciency thing out the window for a min like I said the effeciency has to do with the temp I got that but its simply not going to move the same volume of air with the same pulley therefore it HAS to spin faster no way around that!!!!!
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The scan I posted was from an all out shot at the track looking for 20 degrees of timing on nearly 12lbs of boost from an non intercooled m90 on 93 octane gas. I tuned roughly 50 cars over that summer, for free... everyone was happy and without knock.

98GrandPrixIraqVet said:
On the same pulley as now? LOSE power With out adding injectors LOSE power, Tune will be needed no doubt so I'll give you that. We already know the TVS should be spinning 1/3 faster than the Gen5 to compensate for the smaller size. Throw the effeciency thing out the window for a min no matter what it will have to spin faster. I seriously do not think over a 30 HP gain.
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It's an 80.5CI blower... not a 62. It barely has to spin any faster. To get the airflow from the TVS that I'm getting from an M90 I'll have to go from a 3.2 to a 3.0.
 


Yes I got that and I know their close to the same size even on a 3.0 and non IC'd with a retune and better injectors Id be suprised to see you gain 40-50 hp that an IC would pretty easily do.
 
Look at what its rated to spin at in the performance map....

And your numbers for the revised scale are a tad off by my calculations, but still in the right ballpark.

The whole point is the thing compresses the air instead of forcing more air out in pulses.

Lower charge temp, 15-20% higher efficiency... on top of the fact that you lowered your rotor mass which means less parasitic loss....


I like this idea the more i think of it, but you're not going to magically find any answers here unfortunately.

I'd suggest a good fabricator who can work with aluminum.
 
98GrandPrixIraqVet said:
Yes I got that and I know their close to the same size even on a 3.0 and non IC'd with a retune and better injectors Id be suprised to see you gain 40-50 hp that an IC would pretty easily do.
Click to expand...

I plan on seeing how things go with how much timing I can pull out of it vs how much boost I can run.

My theory is that I'll be able to run a 2.8 pulley on the TVS which will yield me about 12psi. Delta temps should be roughly 50-75 degrees lower than a GenV at 10psi which will allow for more timing. Additionally the drag on the motor will be substantially less, something like 30%. And of course I'll be going to 42lb injectors.


matt5112 said:
Look at what its rated to spin at in the performance map....

And your numbers for the revised scale are a tad off by my calculations, but still in the right ballpark.

The whole point is the thing compresses the air instead of forcing more air out in pulses.

Lower charge temp, 15-20% higher efficiency... on top of the fact that you lowered your rotor mass which means less parasitic loss....


I like this idea the more i think of it, but you're not going to magically find any answers here unfortunately.

I'd suggest a good fabricator who can work with aluminum.
Click to expand...

Thanks for the input... not really looking for magical answers but I definitely got some good info out of here despite all the **** that was flying.
The calculations I did for the maps were done really quickly and I wasn't being precise... just trying to show roughly how much better the TVS is. They're close enough lol
 
I agree with matt the more I dig into it the more Im seeing what Shoflakes seeing. I wouldnt be surprised honestly if you dont get over the 360 whp hump
 
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