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-   -   Whipple 2.3 is it too small for a 540 cid bbc? (https://www.offshoreonly.com/forums/general-q/364204-whipple-2-3-too-small-540-cid-bbc.html)

F-2 Speedy 12-13-2019 07:43 AM

Id put an 8L on a 540......they are pricey

dunnitagain 12-13-2019 09:24 AM

by the time you spin that 2.3 fast enough to make decent boost , it will have heated the air highly and will be very little gain.
Id atleast step up to a 3.3 or 4.0 . You can spin them slower and not heat the air excessively .

AusScarab29 12-13-2019 04:03 PM

Thanks
I guess I will be looking for a 3.3L .
Does a 3.3L compressor fit a 2.3 intercooler?

Blowncat 509 12-18-2019 05:26 PM


Originally Posted by AusScarab29 (Post 4718350)
Thanks
I guess I will be looking for a 3.3L .
Does a 3.3L compressor fit a 2.3 intercooler?

Thats the next question I was gonna ask- and the last one being- what would it take to add another 2.3 and make a quad rotor setup?

AusScarab29 01-17-2020 03:08 PM


Originally Posted by Blowncat 509 (Post 4718970)
Thats the next question I was gonna ask- and the last one being- what would it take to add another 2.3 and make a quad rotor setup?

I contacted Whipple,they said they no longer do the 2.3 quad rotor.
For the 3.3 L
‘You would need a Tuner kit less intake and intercooler They are about $5500.00’

mggdoors 01-20-2020 11:01 PM

It could work decently. Reduce the cam overlap to 0 if possible to maximized cylinder fill. That will allow it to be efficient as possible without having to spin it faster than needed due to boost going out the exhaust in overlap

sutphen 30 01-21-2020 05:53 AM


Originally Posted by mggdoors (Post 4722484)
It could work decently. Reduce the cam overlap to 0 if possible to maximized cylinder fill. That will allow it to be efficient as possible without having to spin it faster than needed due to boost going out the exhaust in overlap

it will be interesting to see what 0 scavaging has on higher rpm operation.I'm not a fan of 0 overlap,even on turbo motors.

mggdoors 01-21-2020 07:55 AM


Originally Posted by sutphen 30 (Post 4722494)
it will be interesting to see what 0 scavaging has on higher rpm operation.I'm not a fan of 0 overlap,even on turbo motors.

A turbo has is much different than a blower. A turbo has insane back pressure to deal with and needs help to get moving. A positive displacement motor does not require scavenging from the exhaust to get the intake moving because as soon as the valve cracks open the boosted charge is feeding the cylinder instantly. Opening ivo early blows it out the exhaust as well as creates pumping loss and closing the exhaust late reduces boost as it blows out the cylinder. Not a huge issue if the blower is large as it has the excess cfm to create good boost and power but with it being on the small side there is no room to waste the charge which requires a more blower specific cam. Will it make power with overlap. Yes. It will make more in this case by reducing overlap by allowing a lower ratio to meet the same boost

sutphen 30 01-22-2020 06:20 AM

sound good in theory,,we'll wait for real world results.good luck

mggdoors 01-22-2020 09:27 AM


Originally Posted by sutphen 30 (Post 4722607)
sound good in theory,,we'll wait for real world results.good luck

Well hey its your lucky day. I have cams coming in exactly as described and will be dynoing soon. 408 with 1.9l superchargers.


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