Help me choose a supercharger

[4sdvenom]

So...I actually did purchase a supercharger, just not the one I was originally going to buy. I had my mind set on the Whipple 2.3L and almost bought it....however, knowing I will be going E85 and wanting more than 700-750+ I ended up with a brand new KB 2.8L. They are 12 weeks out. I'll start off 18-19psi and eventually go higher once I buy a fuel system (looking at Fore Innovations).

I would cancel the order for the KB 2.8 and go with a Gen5 Whipple 3.0. Kenne bell has not made any rotor design improvements since the 2.2 or earlier. Whipple continues to make improvements in their rotor design and the Gen5 has made monstrous improvements in horsepower and reducing IATs over the first Gen Whipples.
It will out perform the KB 2.8 as proven in the many dyno and ET threads posted over the years.
I’ll probably catch slack for those comments from some but I stand behind them from my own research I have been doing for quite sometime. I originally planned for a KB 2.8 5 years or so ago but wasn’t ready at the time for a blower and am glad I didn’t. I bought a Gen5 Whipple 3.0 last year and am looking forward to putting it to use.
In the end it’s your money and I’m sure you’ll be happy with your choice in the end. That’s all that really matters anyway.

Ken

 

[beefcake]

gen 5 whipple is the bad boy

 

[CobraSam]

To add to supercharger discussion.
What would be a recommendation for me or someone my shoes. Only looking for 650rwhp range and as much torques possible. Used VMP 2.3 or a Whipple 2.3?? I feel like it’s pretty much a coin flip. I highly respect you high HP seekers as I’ve been there myself. But, I’ve learned from that and realized in my area there’s really no application for it. Too dense. Shit, my current 515rwhp is boarder line usable, but like you guys, im addicted to boost and need MORE!!!
(Here I am going down the boost wormhole again, I’ll never learn)

 

[DCguy]

To add to supercharger discussion.
What would be a recommendation for me or someone my shoes. Only looking for 650rwhp range and as much torques possible. Used VMP 2.3 or a Whipple 2.3?? I feel like it’s pretty much a coin flip. I highly respect you high HP seekers as I’ve been there myself. But, I’ve learned from that and realized in my area there’s really no application for it. Too dense. Shit, my current 515rwhp is boarder line usable, but like you guys, im addicted to boost and need MORE!!!
(Here I am going down the boost wormhole again, I’ll never learn)

Id go TVS 2.3 over the whip 2.3 for sure. Badass blower….they make crazy power for the size…can do 750whp on E85 and will do over 800 with higher compression and cams.

Good street blower as their sweet spot is 18-19psi but will gladly spin 22-23

 

[CobraSam]

Nice! Reinforces the way I was planning on going. I’m only planning 93, due to 85 availability in my area. So my plan was about 18lbs of boost or so. Hopefully get to 650 safely on 93. It’ll be pushing it though. Thoughts on 93?

 

[CobraSam]

And sorry to steal your thread Redfire Vert. Not my intention

 

[2003RedfireVert]

And sorry to steal your thread Redfire Vert. Not my intention

No problem at all!

 

[1Kona_Venom]

....

 

[1Kona_Venom]

I would cancel the order for the KB 2.8 and go with a Gen5 Whipple 3.0. Kenne bell has not made any rotor design improvements since the 2.2 or earlier. Whipple continues to make improvements in their rotor design and the Gen5 has made monstrous improvements in horsepower and reducing IATs over the first Gen Whipples.
It will out perform the KB 2.8 as proven in the many dyno and ET threads posted over the years.
I’ll probably catch slack for those comments from some but I stand behind them from my own research I have been doing for quite sometime. I originally planned for a KB 2.8 5 years or so ago but wasn’t ready at the time for a blower and am glad I didn’t. I bought a Gen5 Whipple 3.0 last year and am looking forward to putting it to use.
In the end it’s your money and I’m sure you’ll be happy with your choice in the end. That’s all that really matters anyway.

Ken

agree saw it in person, local guy sold his 2.8 and swapped it out with the Gen 5 on E.
Drastic difference and not as much heat. Same car and tuner, worth it

 

[03' White Snake]

agree saw it in person, local guy sold his 2.8 and swapped it out with the Gen 5 on E.
Drastic difference and not as much heat. Same car and tuner, worth it

I agree, but the extra 3K for the Gen 5 is a hard pill to swallow. 3500 or 6500. Can buy 2 blowers of what the others are recommending for the cost of a Gen 5.

I make 824 with my KB 2.8 on 22 psi with corn. Higher CR etc. my tuner told me 100-150 more hp with the Gen 5. So even selling my blower for 2500, I’d still be into a Gen 5 for 3500. Is it worth it….. I don’t know yet. Keep tossing the idea around in my head.

For others not running corn and 22+ psi, the gen5 is a waste. The efficiency is high psi, not 93 pump gas boost levels. Goes with any large blower. They want boost.

 

[P49Y-CY]

gen 5 whipple is the bad boy

would you even recommend that for a street car on 91 octane? thanks

 

[MG0h3]

I agree, but the extra 3K for the Gen 5 is a hard pill to swallow. 3500 or 6500. Can buy 2 blowers of what the others are recommending for the cost of a Gen 5.

I make 824 with my KB 2.8 on 22 psi with corn. Higher CR etc. my tuner told me 100-150 more hp with the Gen 5. So even selling my blower for 2500, I’d still be into a Gen 5 for 3500. Is it worth it….. I don’t know yet. Keep tossing the idea around in my head.

For others not running corn and 22+ psi, the gen5 is a waste. The efficiency is high psi, not 93 pump gas boost levels. Goes with any large blower. They want boost.

Any of the holiday deals makes the GenV 5600


Sent from my iPhone using the svtperformance.com mobile app

 

[D-MANN]

KB 2.8 standard inlet is a capable blower for most people. A quick search will tell you how fast people have gone with that blower. For the price its hard to beat. For a street car with the occasional heavy foot don’t pass up on something thats worked for many for years.


Sent from my iPhone using Tapatalk

 

[MG0h3]

would you even recommend that for a street car on 91 octane? thanks

Most are going to say to just find a 2.3.

My car came with a Gen2 2.9 on 91.

Made 590/540

Put several cars on a C7 vette like that.

I’m sure the GenV would perform even better as it uses less HP to run. Several people reported a 50whp going from an earlier Gen to the GenV at the same boost. Maybe some of it is reduced IaTs.

I’m on E85 now so if I had had an Eaton car and went 2.3, I’d def be regretting it now.

So the question is, will a GenV outperform a 2.3 on 91. No idea. I’d poke around on FB.


Sent from my iPhone using the svtperformance.com mobile app

 

[2003RedfireVert]

KB 2.8 standard inlet is a capable blower for most people. A quick search will tell you how fast people have gone with that blower. For the price its hard to beat. For a street car with the occasional heavy foot don’t pass up on something thats worked for many for years.


Sent from my iPhone using Tapatalk

My thoughts exactly. The price for what I plan to do was a no brainer. This isn’t a balls-to-the-wall race car. I’m not making any money off my car. For $3,650, the 2.8L will be perfectly fine. There will always be something better, and thats true for anything in life. I’m content with the direction I’m going. Anxious to see the results.

 

[1Kona_Venom]

I agree, but the extra 3K for the Gen 5 is a hard pill to swallow. 3500 or 6500. Can buy 2 blowers of what the others are recommending for the cost of a Gen 5.

I make 824 with my KB 2.8 on 22 psi with corn. Higher CR etc. my tuner told me 100-150 more hp with the Gen 5. So even selling my blower for 2500, I’d still be into a Gen 5 for 3500. Is it worth it….. I don’t know yet. Keep tossing the idea around in my head.

For others not running corn and 22+ psi, the gen5 is a waste. The efficiency is high psi, not 93 pump gas boost levels. Goes with any large blower. They want boost.

good lord. I didn't do a price comparison good catch, I agree

 

[4sdvenom]

I definitely agree when price point is taken into consideration. Didn't realize the 2.8 KB's were priced nearly half of the cost of a Gen 5.
That makes a HUGE difference if you're not trying to squeeze every bit of power to the wheels.

As far as a 91 or 93 octane only Cobra, you definitely can't beat getting your hands on a 2.3 blower. Whipple if you want new. Personally though for me in a pump gas 91-93 octane only stituation it would be a VMP 2.3 TVS if you can find a nice used one. The torque they make on pump gas rivals anything else on the market.

Ken

 

[jbr03cobra]

I was always a whipple 2.3 fan for a street car. They spin up quick, will make 600-625 hp on 93 and are very reliable.

 

[Bdubbs]

Been rocking this little 2.3 tvs since 2014. No plans on changing it. I probably only have 8,000 or so miles on it.

But I feel I have it right at the "sweet" spot.

-21lbs boost
-23* peak timing
-ARH headers
-E85

Sent from my moto g power (2021) using Tapatalk

 

[2003RedfireVert]

It’s here. It was “12 week lead time” but they got it done in 6 weeks. I’m not sure when I’ll get around to installing it. I’m debating on getting a return style fuel system. This will probably turn into a winter project but waiting will be no fun.