supercharger on daily driver? - Hot Rod Forum : Hotrodders Bulletin Board
Hotrodders.com -- Hot Rod Forum



Register FAQ Search Today's Posts Unanswered Posts Auto Escrow Insurance Auto Loans
Hot Rod Forum : Hotrodders Bulletin Board > Tech Help> Engine
User Name
Password
lost password?   |   register now

Reply
 
LinkBack Thread Tools
  #1 (permalink)  
Old 04-07-2007, 06:57 PM
Registered User
 
Join Date: Apr 2007
Location: New York
Posts: 9
Wiki Edits: 0

Thanks: 0
Thanked 0 Times in 0 Posts
supercharger on daily driver?

Im trying to plan out what im going to do with my car. I know im getting a 68-74 nova, and a 350ci chevy. Im going to be driving this as a daily driver and sometimes mabey once a month on anywhere from 7-13 hr trips. I would like to get around 450hp out of this engine, and dont know what would be a more reliable and more econimic choice. Should i get a 144 weiand supercharger, what ever cam i need, and heads (not sure what ones i need with a supercharger), or should i do it with out a supercharger. With the 144 would i be able to have the scoop all the way out of the hood? And if i run it in the rain will water go thrugh the air filter and into the engine?

    Advertisement
Reply With Quote Quick reply to this message
Sponsored Links
Advertisement
 
  #2 (permalink)  
Old 04-07-2007, 07:38 PM
F-BIRD'88's Avatar
Yada Yada Yada
 
Last photo:
Join Date: Oct 2005
Location: Ontario, Canada
Posts: 9,153
Wiki Edits: 0

Thanks: 5
Thanked 380 Times in 374 Posts
A blown 350 can be very reliable and work very well as a daily driver.

You want to build your 350 with low compression ratio forged pistons. TRW L2441F-30 are popular. (21cc d cup dish) Open up the top ring end gap slightly for supercharged application.
Combine these with 72-76cc aftermarket performance heads.
Dart 200cc Iron Eagles or World Products Sportsman II are good. RHS 72cc 200cc port Iron Lightning heads also.
A Crane #113802 cam and lifter set (HMV 278) makes a great daily driver supercharger camshaft. Easy to live with yet makes the power you want. Try 1.6 rockers on the intake side for equal .498"/.494" valve lift. (buy a split 1.6/1.5 rocker set)
This combination works very well overall with a 144ci blower.
A 750cfm Holley carb works well. May need richer sec jetting.
Try #74 and #88 jets to start.
You want about 8psi blower boost. (upper pulley selection)
You want to employ boost referenced ignition retard to reduce the ignition advance while under boost (Holley/B&M)
about 1degree/ LB boost. 16 to 20degrees timing @ idle ,,,34 to 36 total advance with 6 to 8degrees retard under boost.
This configuration will allow reliable power on 92 octane pump gas. Build the motor as described and it will make 450+ easy reliable HP.
I'd go with a 3" Cowl Induction Hood and drop base style 14x3" air cleaner.

Last edited by F-BIRD'88; 04-07-2007 at 07:59 PM.
Reply With Quote Quick reply to this message
  #3 (permalink)  
Old 04-08-2007, 09:01 AM
Registered User
 
Join Date: Apr 2007
Location: New York
Posts: 9
Wiki Edits: 0

Thanks: 0
Thanked 0 Times in 0 Posts
what kind off gas milage could i expect out of that?
Reply With Quote Quick reply to this message
  #4 (permalink)  
Old 04-08-2007, 03:41 PM
F-BIRD'88's Avatar
Yada Yada Yada
 
Last photo:
Join Date: Oct 2005
Location: Ontario, Canada
Posts: 9,153
Wiki Edits: 0

Thanks: 5
Thanked 380 Times in 374 Posts
Quote:
Originally Posted by james22n
what kind off gas milage could i expect out of that?
No worse than any other carbed 450hp motor.
Because it does not need a wild cam to make its power, probabily better. The difference will all be in your ability/patience to fine tune the carb calibration and ignition timing to cruise effienctly on the hiway.
A wide band AFR meter and O2 sensor on the exhaust will help a lot to allow you to see what jetting it needs.
If hiways mileage was a priority I would use a stock 12" converter and say a 3.42-3.55 rear gear.
This combo could be dialed in to get reasonable fuel mileage.

It's all relative. If you need 25MPG you're barking up the wrong tree. Then, ya need a 250ci straight six in your Nova. Possabily with a Turbo. Rear-mounted Turbo Would be cool.

Last edited by F-BIRD'88; 04-08-2007 at 03:53 PM.
Reply With Quote Quick reply to this message
  #5 (permalink)  
Old 04-08-2007, 04:15 PM
Registered User
 
Join Date: Apr 2007
Location: New York
Posts: 9
Wiki Edits: 0

Thanks: 0
Thanked 0 Times in 0 Posts
would i get around 15 mpg w/ the blown 350?
Reply With Quote Quick reply to this message
  #6 (permalink)  
Old 04-08-2007, 05:11 PM
How fast is fast enough?
 
Last photo:
Join Date: Jun 2005
Location: St. Louis, MO
Age: 29
Posts: 9,199
Wiki Edits: 0

Thanks: 17
Thanked 338 Times in 318 Posts
you can easlily get 15 MPG if you stick with a small cam- as said the CAM determines a lot about hte milage. Infact I would even say that you can expect 20+ MPG on the highway if you have a decent cam and about 8:1 static compression with about 7 pounds of boost and keep the cruise RPM's at about 2000 or a little under. If you want hydraulic (which I recomend for smaller durations) I would go with a cam in the 205/212 range (+- 5 degrees depending on your tastes) with a 114 LSA installed advanced 4 degrees or so. BTW your torque curve will leave a mile wide smile on your face.

You may need EFI to get the last few MPG's though as it can be tuned a lot better than a carb (even though I'm an admitted carb guy because of the costs and simplicity).
Reply With Quote Quick reply to this message
  #7 (permalink)  
Old 04-08-2007, 05:27 PM
Member
 
Last wiki edit: Ford axle ratio codes
Last journal entry: Rear Suspension
Last photo:
Join Date: Aug 2005
Location: Prattsville
Posts: 6,401
Wiki Edits: 31

Thanks: 2
Thanked 59 Times in 55 Posts
I think you need to slow down. right now, you don't have the car, and you want 450 HP, now this is all well and dooable with a supercharger but, why, daily driver will never need 450 HP, playing that game is only bragging rights. 350 HP is more than sufficent to push a '68-'74 nova around. build a mild 350 engine, low compression, around 8.5:1 or so, then add your 144 supercharger run 5 PSI, you'll make about 350 HP, it will be tame enough for the street, but fun enough also. personally, I'm a turbo guy. I like the fact, they only boost when you want them, so they have excelent street manors, not to mention they actully produce more HP than superchargers, by approx 20%
Reply With Quote Quick reply to this message
  #8 (permalink)  
Old 04-08-2007, 06:46 PM
How fast is fast enough?
 
Last photo:
Join Date: Jun 2005
Location: St. Louis, MO
Age: 29
Posts: 9,199
Wiki Edits: 0

Thanks: 17
Thanked 338 Times in 318 Posts
turbo's don't make boost when I want it- off idle...

Though I have a te04h I'm putting on my 2.8L s10- it'll max out at like 5000 RPM, but it will have amost off idle boost.
Reply With Quote Quick reply to this message
  #9 (permalink)  
Old 04-08-2007, 08:15 PM
Registered User
 
Join Date: Apr 2007
Location: New York
Posts: 9
Wiki Edits: 0

Thanks: 0
Thanked 0 Times in 0 Posts
how much horsepower will i gain w/ EFI? I would like at least 400hp. To get good gas mileage, adn hp, what cam should i get? should i still get the same pistons, and Dart 72cc 200cc iron heads?

Last edited by james22n; 04-08-2007 at 08:31 PM.
Reply With Quote Quick reply to this message
  #10 (permalink)  
Old 04-09-2007, 04:23 AM
Member
 
Last wiki edit: Ford axle ratio codes
Last journal entry: Rear Suspension
Last photo:
Join Date: Aug 2005
Location: Prattsville
Posts: 6,401
Wiki Edits: 31

Thanks: 2
Thanked 59 Times in 55 Posts
Quote:
Originally Posted by ap72
turbo's don't make boost when I want it- off idle...

Though I have a te04h I'm putting on my 2.8L s10- it'll max out at like 5000 RPM, but it will have amost off idle boost.
get the right turbo and it will spool right off the line. it's all in the exhaust housing sizes. just if you want early boost, get an exhaust housing a couple sizes smaller than the reccomended, will boost up a lot quicker. this is why Garret made the T3/ T4 Hybrids, T3 exhaust, with a T4 Compressor, what you get is a quick spool up.
Reply With Quote Quick reply to this message
  #11 (permalink)  
Old 04-09-2007, 04:39 AM
Member
 
Last wiki edit: Ford axle ratio codes
Last journal entry: Rear Suspension
Last photo:
Join Date: Aug 2005
Location: Prattsville
Posts: 6,401
Wiki Edits: 31

Thanks: 2
Thanked 59 Times in 55 Posts
Quote:
Originally Posted by james22n
how much horsepower will i gain w/ EFI? I would like at least 400hp. To get good gas mileage, adn hp, what cam should i get? should i still get the same pistons, and Dart 72cc 200cc iron heads?
your not going to gain much of anything by going EFI, except efficency. won't effect power too much. if you go N/A, your going to want to have a motor that you can drive daily, you'll probably want to run 87 or 89 octane, which with a Turbo/ Supercharger, is out of the question, with them 91 might be enough. build a 350, 9.0:1 get AFR heads, the small 1's, there 165 or 163 cc I belive, this will get you the low end torque. for a cam, you need to understand that they do not make power, they make power available ( kinda like a super tuner programmer ), and they effect when your engine will make power, they need to match your compression ratio and what RPM's you want your motor to live in, call a cam grinder and get what you need, don't go above .500 lift and make shure your heads/ valve springs can take the lift you get. you will get 300-350 HP out of this combo, but it will be reliable everyday, and you can pump the cheap gas in it, and it's not going to hurt anything. 400 hp, on the street is just bragging rights, not to mention, you seem pretty young- you don't need it
Reply With Quote Quick reply to this message
  #12 (permalink)  
Old 04-09-2007, 08:19 PM
Registered User
 
Join Date: Jan 2007
Location: maryland
Posts: 44
Wiki Edits: 0

Thanks: 0
Thanked 0 Times in 0 Posts
Get a Whipple

Forget Roots, a screw type super charger is Better, it can be pricy but WOW!
Reply With Quote Quick reply to this message
  #13 (permalink)  
Old 04-09-2007, 09:03 PM
How fast is fast enough?
 
Last photo:
Join Date: Jun 2005
Location: St. Louis, MO
Age: 29
Posts: 9,199
Wiki Edits: 0

Thanks: 17
Thanked 338 Times in 318 Posts
Quote:
Originally Posted by matt167
your not going to gain much of anything by going EFI, except efficency. won't effect power too much. if you go N/A, your going to want to have a motor that you can drive daily, you'll probably want to run 87 or 89 octane, which with a Turbo/ Supercharger, is out of the question, with them 91 might be enough. build a 350, 9.0:1 get AFR heads, the small 1's, there 165 or 163 cc I belive, this will get you the low end torque. for a cam, you need to understand that they do not make power, they make power available ( kinda like a super tuner programmer ), and they effect when your engine will make power, they need to match your compression ratio and what RPM's you want your motor to live in, call a cam grinder and get what you need, don't go above .500 lift and make shure your heads/ valve springs can take the lift you get. you will get 300-350 HP out of this combo, but it will be reliable everyday, and you can pump the cheap gas in it, and it's not going to hurt anything. 400 hp, on the street is just bragging rights, not to mention, you seem pretty young- you don't need it
you cna run a supercharger and octane as low as 87- its all in how you build it. It won't be the most efficent engine, but it will run and drive just fine.
Reply With Quote Quick reply to this message
  #14 (permalink)  
Old 04-10-2007, 11:13 AM
F-BIRD'88's Avatar
Yada Yada Yada
 
Last photo:
Join Date: Oct 2005
Location: Ontario, Canada
Posts: 9,153
Wiki Edits: 0

Thanks: 5
Thanked 380 Times in 374 Posts
Quote:
Originally Posted by james22n
would i get around 15 mpg w/ the blown 350?
Yes if you can keep your foot out of it.

If fuel mileage is such a concern you need to rethink your plans. Get a small car with a small engine and drive it like there is a egg under your foot on the gas petal.

Any 450hp car you build, reguardless of how, will not be very good on fuel mileage.
Reply With Quote Quick reply to this message
  #15 (permalink)  
Old 04-10-2007, 11:37 AM
How fast is fast enough?
 
Last photo:
Join Date: Jun 2005
Location: St. Louis, MO
Age: 29
Posts: 9,199
Wiki Edits: 0

Thanks: 17
Thanked 338 Times in 318 Posts
here's an idea- a turboed 3400 series engine running 15 psi intercooled boost- prob a T3 turbo. You can hit your 450 mark, get decent milage, and its lighter than a chevy 350...
Reply With Quote Quick reply to this message

Recent Engine posts with photos

Quick Reply
Message:
Options

Register Now

In order to be able to post messages on the Hot Rod Forum : Hotrodders Bulletin Board forums, you must first register.
Please enter your desired user name (usually not your first and last name), your email address and other required details in the form below.
User Name:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.
Password:
Confirm Password:
Email Address
Please enter a valid email address for yourself.
Email Address:

Log-in

Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.




Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools

Posting Rules
You may post new threads
You may post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On


Similar Threads
Thread Thread Starter Forum Replies Last Post
Turbo vs Supercharger - Write up!! FastChevyTruck Engine 107 02-16-2011 12:18 PM
400 SBC Daily Driver Buildup 31rdster Engine 22 06-01-2009 10:51 AM
Choke Required on Carbed Daily Driver? Dino Boreanaz Engine 5 01-18-2007 09:24 AM
New to Group El Camino daily driver 451CTDS Introduce Yourself 3 11-19-2006 04:51 PM
Electric WP, daily driver? curtg21 General Rodding Tech 1 07-27-2006 02:57 PM


All times are GMT -6. The time now is 09:57 AM.


Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2014, vBulletin Solutions, Inc.
Search Engine Optimization by vBSEO 3.6.0 PL2
Copyright Hotrodders.com 1999 - 2012. All Rights Reserved.