Slant *        6        Forum
Home Home Home
The Place to Go for Slant Six Info!
Click here to help support the Slant Six Forum!
It is currently Mon Dec 02, 2024 10:27 am

All times are UTC-08:00




Post new topic  Reply to topic  [ 18 posts ]  Go to page 1 2 Next
Author Message
 Post subject: HyperPak EFI
PostPosted: Sun Jul 13, 2008 4:00 am 
Offline
TBI Slant 6
User avatar

Joined: Fri Apr 18, 2003 1:29 am
Posts: 101
Location: Sydney, Australia
Car Model:
It's done, finally.

Image

Image

Image

Image

Much thanks to my mate Dale - his patience and advice stopped me from setting fire to her and walking away earlier today.

_________________
Image


Top
   
 Post subject:
PostPosted: Sun Jul 13, 2008 5:01 am 
Offline
Board Sponsor & Contributor

Joined: Thu Oct 31, 2002 5:39 pm
Posts: 24449
Location: North America
Car Model:
Beauty, eh!

_________________
一期一会
Too many people who were born on third base actually believe they've hit a triple.

Image


Top
   
 Post subject: All right!
PostPosted: Sun Jul 13, 2008 9:20 am 
Offline
Board Sponsor
User avatar

Joined: Tue Oct 29, 2002 8:27 pm
Posts: 9714
Location: Salem, OR
Car Model:
First hurdle done! Congrats! And it Looks Great!!!!

Next major hurdle coming up, getting it to run and tuning all the details.

I will be very interested in seeing how the EFI setup reacts to the 'ram effect' above 3500.

Keep us posted!

-D.Idiot


Top
   
 Post subject:
PostPosted: Sun Jul 13, 2008 3:29 pm 
Offline
Supercharged
User avatar

Joined: Sat Nov 27, 2004 8:03 pm
Posts: 9498
Location: IRWIN PA
Car Model:
Nice, You'll get great mileage with that intake and injector setup..

I just got back from a show today and mine got 22.7 MPG on the way out with a carbby and 3.23's out back.

That is sort of what I want to do eventually with my EFI Slant car, but for now I will just stick with this thing:

Image

I was trying to duplicate the long runner effect of the hyperpak intake on a budget with what I have at the time :)

Good luck with it!

Greg

_________________
http://www.youtube.com/hyperpack
Image


Top
   
 Post subject:
PostPosted: Sun Jul 13, 2008 9:11 pm 
Offline
Turbo Slant 6
User avatar

Joined: Sun Apr 09, 2006 6:08 pm
Posts: 962
Location: Comfrey MN
Car Model:
Looks great!!! I wish I had that much room between my rail and TB :cry:

_________________
Chris'
Autobody
Restoration
Service


Top
   
 Post subject: Re: All right!
PostPosted: Mon Jul 14, 2008 3:23 am 
Offline
TBI Slant 6
User avatar

Joined: Fri Apr 18, 2003 1:29 am
Posts: 101
Location: Sydney, Australia
Car Model:
Quote:
First hurdle done! Congrats! And it Looks Great!!!!

Next major hurdle coming up, getting it to run and tuning all the details.

I will be very interested in seeing how the EFI setup reacts to the 'ram effect' above 3500.

Keep us posted!

-D.Idiot
She fired right up with the previous intake setup's tune. She had a quick 5min road tune, and I drove her to work and back today (30mile round trip, half freeway). Dyno action tomorrow night.

First impression is that she's much more responsive down low compared to the previous combo.

_________________
Image


Top
   
 Post subject:
PostPosted: Mon Jul 14, 2008 7:40 am 
Offline
Board Sponsor & SL6 Racer
User avatar

Joined: Fri Nov 08, 2002 4:48 pm
Posts: 5835
Location: Burton BC canada
Car Model:
Cool!

_________________
Yeah....Im the one who destroyed this rare, vintage automobile.....

Image


Top
   
 Post subject:
PostPosted: Mon Jul 14, 2008 10:03 am 
Online
Board Sponsor & Moderator
User avatar

Joined: Mon Oct 21, 2002 11:08 am
Posts: 16793
Location: Blacksburg, VA
Car Model:
Nice work indeed.

Lou

_________________
Home of Slant6-powered fun machines since 1988


Top
   
 Post subject:
PostPosted: Tue Jul 15, 2008 4:41 am 
Offline
TBI Slant 6
User avatar

Joined: Fri Apr 18, 2003 1:29 am
Posts: 101
Location: Sydney, Australia
Car Model:
She had a bit of a tune today.

Image

The baseline was taken last Thursday on the same dyno by the same operator.

_________________
Image


Top
   
 Post subject:
PostPosted: Tue Jul 15, 2008 5:41 am 
Offline
Supercharged

Joined: Sun Jun 04, 2006 4:53 pm
Posts: 4295
Location: Gaithersburg MD
Car Model:
Thanks for keeping us in the loop. That looks great. Greg, what car do you have the EFI on? Is that your '69? The color and the braces on the fenders say no. HOw was Carlisle?

Sam

_________________
Image


Top
   
 Post subject:
PostPosted: Tue Jul 15, 2008 1:42 pm 
Offline
Supercharged
User avatar

Joined: Sat Nov 27, 2004 8:03 pm
Posts: 9498
Location: IRWIN PA
Car Model:
the Efi is on My 79 Volare/ Duster.

I still have the dart setup just the way you see in the picture.


Carlisle was good. Lots of fun there.

Greg

_________________
http://www.youtube.com/hyperpack
Image


Top
   
 Post subject:
PostPosted: Wed Jul 16, 2008 5:08 am 
Online
Board Sponsor & Moderator
User avatar

Joined: Mon Oct 21, 2002 11:08 am
Posts: 16793
Location: Blacksburg, VA
Car Model:
Safari,

That is a huge gain, and you didn't lose anything up high. More tuning will get you more power, methinks.

Lou

_________________
Home of Slant6-powered fun machines since 1988


Top
   
 Post subject:
PostPosted: Wed Jul 16, 2008 6:11 am 
Offline
TBI Slant 6
User avatar

Joined: Fri Apr 18, 2003 1:29 am
Posts: 101
Location: Sydney, Australia
Car Model:
More cam and exhaust will get me more power! The thing is as quiet as a church mouse and has a stocky cam. Having said that she is an absolute pleasure to drive. I used to think my car drove very smoothly and well with the previous EFI setup (which it did), but the additional power with no loss of driveability is a wonderful thing. I'm concerned that if I do make her breathe a little longer and easier with some cam and exhaust changes I would detract from the driving experience somewhat - Maybe? She is my daily driver and I use her to loaf along in traffic day in and day out, and part of her appeal is how effortless/quiet/lazy she is in that environment.

One thing this conversion has highlighted is that my brakes and suspension need work! :oops:

Thanks for all the positive comments, much appreciated.

Image

_________________
Image


Top
   
 Post subject:
PostPosted: Wed Jul 16, 2008 1:22 pm 
Online
Board Sponsor & Moderator
User avatar

Joined: Mon Oct 21, 2002 11:08 am
Posts: 16793
Location: Blacksburg, VA
Car Model:
A mild cam upgrade and some better exhaust should not hurt your drivability. With a stock torque converter, I would stay below 220 deg @ 0.050" duration, and most people on here would say stay below 215 deg @ 0.050.

I would not go over 2.5" single exhaust for your setup. If you have split exh manifolds or extractors, go with 2 X 2" into a Y-pipe and 2.5" out the back. Dual exhaust is for V engines...

Lou

_________________
Home of Slant6-powered fun machines since 1988


Top
   
 Post subject: Nawww....
PostPosted: Wed Jul 16, 2008 6:07 pm 
Offline
Board Sponsor
User avatar

Joined: Tue Oct 29, 2002 8:27 pm
Posts: 9714
Location: Salem, OR
Car Model:
Quote:
I'm concerned that if I do make her breathe a little longer and easier with some cam and exhaust changes I would detract from the driving experience somewhat - Maybe?

No, as long as you are a bit conservative on your cam selection, you will be fine like Lou says... I currently daily drive with the next cam up from stock the comp cam 252 and stock valves with some port/bowl work... it's got a good wide torque band and has good manners at all rpms... (the hpak has nice torque down lower, but if I read your graph right the stock cam ran out before you really had a chance to 'play', since the tuned/ram effect on this intake starts at 3500 rpm...)

I've had mine wound up to 5-6000 and it just gets fun in that rpm band...


-D.Idiot


Top
   
Display posts from previous:  Sort by  
Post new topic  Reply to topic  [ 18 posts ]  Go to page 1 2 Next

All times are UTC-08:00


Who is online

Users browsing this forum: Bing [Bot] and 4 guests


You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot post attachments in this forum

Search for:
Jump to:  
Powered by phpBB® Forum Software © phpBB Limited