Offshoreonly.com

Offshoreonly.com (https://www.offshoreonly.com/forums/)
-   General Q & A (https://www.offshoreonly.com/forums/general-q-20/)
-   -   8.3l Whipple vs. 10-71 (https://www.offshoreonly.com/forums/general-q/368724-8-3l-whipple-vs-10-71-a.html)

frickstyle 10-08-2020 03:52 PM

So what are you doing about engine management, computer, EFI control, etc?

I thought you just went through this with the Holley conversion?

Are you starting all over again or do you use some of that system?

Where do the fuel injectors go?

hogie roll 10-08-2020 04:38 PM


Originally Posted by 47EXCALIBUR (Post 4760808)
My advise would be to buy new intake manifolds from Whipple for Port injection. This will help with fuel distribution. Running the fuel through the blower from the throttle body usually loads up the front 4 cylinders with fuel and leans out the back 4. I know bc of hours on the dyno with both set ups. This will also help docking manners and make programming easier

I think eddy young said it had problems side to side, but what you said seems intuitively correct due to the small discharge area compared to a roots.

F-2 Speedy 10-08-2020 04:44 PM

Frick, theirs a fuel rail under the hat, air inlet in the rear of the blower, I think the 8L has 10 injectors

frickstyle 10-09-2020 11:05 AM

Wow, nice. What's that package run $$$ - before I consider going the Holley route?

Do you run a whipple computer, or what's involved ont he electronics end of it?

F-2 Speedy 10-09-2020 11:17 AM


Originally Posted by frickstyle (Post 4760943)
Wow, nice. What's that package run $$$ - before I consider going the Holley route?

Do you run a whipple computer, or what's involved ont he electronics end of it?

Im running mefi 4b's on mine, ICD is running the HP Holley ?

Knot 4 Me 10-09-2020 07:35 PM


Originally Posted by ICDEDPPL (Post 4760803)
Not yet , going down to LOTO pto pick up .
The top mount is 2" taller than a 10-71 .. I don`t have the space

Saw the flat deck in Kingdom City around 10 this morning on way to lake. Looked good!

ICDEDPPL 10-12-2020 11:46 AM


Originally Posted by Knot 4 Me (Post 4761020)
Saw the flat deck in Kingdom City around 10 this morning on way to lake. Looked good!

Thanx!

We pulled in there about 3 am slept in the boat and finished the rest of the ride on Saturday .
It was a working vacation with prop testing from FJ and then getting the Whipples.
https://cimg9.ibsrv.net/gimg/www.off...5b70e42481.jpg




MILD THUNDER 10-12-2020 08:09 PM


Originally Posted by ICDEDPPL (Post 4760361)
I`m 4.4% over about 7psi

about 120* after a good run in the heat of summer.
109* when the water and ambient temps drops.

not sure where all the heat talk comes from. My NA 540ci in my car has IAT temps similar to your roots blower setup. Guys need to calm down with the heat talk. 🥴

ICDEDPPL 10-15-2020 05:08 PM


Originally Posted by MILD THUNDER (Post 4761386)
not sure where all the heat talk comes from. My NA 540ci in my car has IAT temps similar to your roots blower setup. Guys need to calm down with the heat talk. 🥴


You should get an intercooler , sounds too HOT!

https://www.tickperformance.com/comb...y-ram-intakes/

underpsi68 10-15-2020 06:03 PM


Originally Posted by MILD THUNDER (Post 4761386)
not sure where all the heat talk comes from. My NA 540ci in my car has IAT temps similar to your roots blower setup. Guys need to calm down with the heat talk. 🥴

My Vortech supercharged small block would have ait's in the 170-180+ just cruising around. Under boost would be 200+. Ran like that for awhile, than put meth kit on.

My single turbo setup on same engine would be cooler cruise temp but over 200 under boost. Put largest intercooler i could fit and now air temps are much better. 5-10* higher than ambient after 1/4 mile run.


All times are GMT -5. The time now is 10:59 PM.


Copyright © 2026 MH Sub I, LLC dba Internet Brands. All rights reserved. Use of this site indicates your consent to the Terms of Use.