Bt injected tunnel ram with carbs ?

View previous topic View next topic Go down

Bt injected tunnel ram with carbs ?

Post  Johnnygofast on June 6th 2017, 2:10 pm

Does anyone know if it is possible to make a top for the blue thunder tunnel ram to fit carbs and it work properly ,instead of its intended purpose  (injection). Looking for a better tunnel ram than a Weiand . But dont want to pay for a hogan just yet. My engine has p51s on it.

Johnnygofast

Posts : 6
Join date : 2017-06-03

View user profile

Back to top Go down

Re: Bt injected tunnel ram with carbs ?

Post  Scott Foxwell on June 6th 2017, 3:26 pm

Which BT TR are you talking about?

Scott Foxwell

Posts : 391
Join date : 2011-06-23
Location : N/E Tennessee

View user profile http://www.straubtechnologies.com

Back to top Go down

Re: Bt injected tunnel ram with carbs ?

Post  Johnnygofast on June 6th 2017, 3:50 pm

Trying to look for other options before going to hogan

Here's the one I am referring 2 .goodvibrationsmotorsports. com/Blue-Thunder-BBF-Tunnel-Ram.aspx

I am a machinist and can make a top for but would it work with carbs .

Johnnygofast

Posts : 6
Join date : 2017-06-03

View user profile

Back to top Go down

Re: Bt injected tunnel ram with carbs ?

Post  Johnnygofast on June 6th 2017, 4:03 pm

Just looking for a manifold in between the weiand and a hogan . It's going on a 545 , with p51 heads . 12to1, bullet cams solid roller . Nitrous engine . In a jet boat sees rpms of around 7500 on the squeeze . I have a port matched trick flow mafia now with a 1150 dominator .

Johnnygofast

Posts : 6
Join date : 2017-06-03

View user profile

Back to top Go down

Re: Bt injected tunnel ram with carbs ?

Post  Scott Foxwell on June 6th 2017, 4:18 pm

You "could" make a top for carbs to fit that intake but it would never work very well. That's part of the problem with conventional head 385 series...not a very good performance manifold selection especially when it comes to TR's.

Scott Foxwell

Posts : 391
Join date : 2011-06-23
Location : N/E Tennessee

View user profile http://www.straubtechnologies.com

Back to top Go down

Re: Bt injected tunnel ram with carbs ?

Post  jasonf on June 6th 2017, 8:40 pm

IDK why they call it a tunnel ram. It is an injector manifold made for an injector hat. The runners are large but very short. To me it looks exactly like the BT blower manifold but without the blower mounting flange.

Mine had a top plate on it for what you described for use with two dominators. You have to mill the inside of the manifold as seen in my pics. I bought it from the guy that makes the other Boss 429 heads and I have never used it myself. Blake has seen it so maybe he would have some thoughts on how well it may work.














Last edited by jasonf on June 6th 2017, 8:53 pm; edited 1 time in total
avatar
jasonf
BBF CONTRIBUTOR
BBF CONTRIBUTOR

Posts : 2662
Join date : 2009-07-14
Age : 48
Location : Lafayette, LA

View user profile

Back to top Go down

Re: Bt injected tunnel ram with carbs ?

Post  Johnnygofast on June 6th 2017, 8:52 pm

Any interest in selling it ?

Johnnygofast

Posts : 6
Join date : 2017-06-03

View user profile

Back to top Go down

Re: Bt injected tunnel ram with carbs ?

Post  jasonf on June 6th 2017, 8:54 pm

Johnnygofast wrote:Any interest in selling it ?

No, my plan was to convert it to efi and give it a whirl.
avatar
jasonf
BBF CONTRIBUTOR
BBF CONTRIBUTOR

Posts : 2662
Join date : 2009-07-14
Age : 48
Location : Lafayette, LA

View user profile

Back to top Go down

Re: Bt injected tunnel ram with carbs ?

Post  Johnnygofast on June 6th 2017, 9:00 pm

Hopefully come one has done this with carbs and can chime in . Would be nice to plumb it for a fogger. If it works

Johnnygofast

Posts : 6
Join date : 2017-06-03

View user profile

Back to top Go down

Re: Bt injected tunnel ram with carbs ?

Post  Scott Foxwell on June 7th 2017, 9:07 am

It would be somewhat similar to the old FE Tunnel port wedge manifold...but not quite...



Last edited by Scott Foxwell on June 9th 2017, 7:56 am; edited 1 time in total

Scott Foxwell

Posts : 391
Join date : 2011-06-23
Location : N/E Tennessee

View user profile http://www.straubtechnologies.com

Back to top Go down

Re: Bt injected tunnel ram with carbs ?

Post  BBFTorino on June 8th 2017, 1:14 am

For carb use, it looks like you would have to do more than just make a top plate for it.
The short runners would be more oriented towards high RPM. You would have to somehow make some type of runner extensions inside to make them longer and lower the power curve to a lower RPM.
But how long??...what shape??....it would be kinda fun to just tinker with it and see what works best.

BBFTorino

Posts : 397
Join date : 2015-12-31

View user profile

Back to top Go down

View previous topic View next topic Back to top


 
Permissions in this forum:
You cannot reply to topics in this forum