I can vouch for your work, seen it myself in person.


All the best,


Mike

 

Here is my question, maybe I am completely wrong but i'll give it a wack anyways. I currently own a 2012 CTS-V and to my understanding the blowers are both 1900 twin screw eaton blowers on the V and the F type R/SVR etc. Now Years ago people per say wouldn't push these little blowers past 14psi in fear of overspinning them. Now a few years later here we are spinning these blowers to 17-19psi and making stupid power out of them. So in other words squeezing another 40-60whp out of these little suckers and they love the abuse, the only thing at that point was keeping IATs low with meth, ice tanks etc. To give people an idea, my built motor, stock blower just ported FBO is making roughly 815-830 to the wheel on a moderate tune. Now my question is, why do people think these blowers won't do the same? I'm not comparing hp numbers since I know it is not apples to apples but i'm thinking more just the blowers. Is it because of the limited availability on smaller pulley setups? I am going to be picking up a R over the winter and would love to do some R&D on getting some new setups going.

 

I think the concern is more the whole package. I don't think anyone said the blower upgrade couldn't be done, but obviously if a 2300 was able to be dropped in place, that would be much easier.

The real concern for me is the open deck cylinder block. From a design standpoint that is far from optimal, and no one knows how much this thing can take before popping the cylinder wall.

The CTS-V block is a semi-closed deck design from the factory and thus is naturally stronger from that perspective. We also do not have the aftermarket support to easily upgrade a vehicle the way the CTS-V does. To my knowledge there is only one F-type over 700 horsepower; and he has ported the blower and added meth specifically for cooling purposes.

 

I was more thinking about sticking to the stock blower. Sure the 2300 would be nice but like you said is a PITA to swap over. I wouldn't mind 700 to the wheel stock long block. I know the aftermarket isn't huge *YET* but with time I'm sure people will be getting 750+ out of unopened long blocks. It also doesn't help that the majority of R owners aren't really into squeezing as much possible out of the car

 

Years ago, the M series 1900 blower was a totally different design. The more recent TVS twin vortex line of Eaton blowers was designed to address the shortcomings of the earlier blowers.

 

So if I read that correctly you are saying the new design is a better design correct? If so even the better

 

Yeah, I think that last line about summed it up! I would guess based on weight and trap speed...I'm about 580rwhp on boost alone. There's probably some more in it, if we tuned for the methanol vs. just using it for cooling and then on spray, it's probably making 710rwhp. Again, probably some more in it, if you really wanted to get more aggressive in the tune.

I always thought the 1900 blowers were starting to get out of efficiency if spun much faster than we do with new pulleys?

But hey, if you're in the market...I put mine up for sale - great deal

Jay

 

Well I don't mind overspinning a blower, as long as it stays in tact and makes more power. LOL On the V the little 1.9L blower gets spun pretty hard and has held up a beating just fine but according to Unhingd it might be a different blower design.


I saw your vert, I need a coupe unfortunately but i'm sure that thing will fly! GLWS

 

These TVS SCs are designed to max out at 18000 rpm. With the 2 pulleys, we are already sacrificing adiabatic efficiency at 19,000 rpm (at engine redline). We're giving up a bit at the top end to maximize the midrange output (2800-4200 rpm).

 

Yea that is a big difference. Im spinning my 1.9L id say to about 26,000rpms by redline based on a chart we use. Now is it recommended, defently not, if im not mistaken the parameters are supposed to be under ~22,000rpms or in that ball park

 

So thinking logically the next car from the SVO division should be the "Project 9". I am curious to know which Jag model they will chose for the next bump to over 600HP. And also where will the AJ V8 Gen III engine eventually max out for HP in the coming years prior to Jag introducing a replacement engine?

 

I am going to bet dollars to donuts that it would not make that kind of power without upgrading head gasket, studs/bolts and cooling system.

 

You are aware that donuts generally cost more than one dollar these days?