Go Back  Honda-Tech - Honda Forum Discussion > Honda and Acura Technical Forums > Forced Induction
Reload this Page >

power capability for a stock engine B18A/B that is turbocharged

power capability for a stock engine B18A/B that is turbocharged

 
Old 05-31-2019, 05:02 PM
  #1  
Honda-Tech Member
Thread Starter
 
Join Date: Jul 2013
Posts: 60
Likes: 0
Received 0 Likes on 0 Posts
Default power capability for a stock engine B18A/B that is turbocharged

Hi I was just woundering what would be the max you could boost on a stock sleeve b18 non vtec if it had forged 0istons and shott pined rods with arp rod bolt. And how much the max boost would be on a stock sleeve b18 wit h beam rods and forged pistons on a daily driven e85 tuned car
purposebuilt is online now  
Old 05-31-2019, 05:38 PM
  #2  
Honda-Tech Member
 
Chance EG's Avatar
 
Join Date: Jan 2013
Location: Austin, TX
Posts: 1,651
Likes: 0
Received 0 Likes on 0 Posts
Default re: power capability for a stock engine B18A/B that is turbocharged

Most people consider around 400WHP on stock sleeves to be the point of diminishing returns and exponential risk with the OEM B sleeves.

With a stock non-VTEC head I'm not sure what your numbers will end up looking like. Don't get a huge turbo.

Boost pressure is irrelevant to the engine holding the power or not. 10PSI on a GT28 is not the same as 10PSI on a 6266.
Chance EG is offline  
Old 05-31-2019, 05:58 PM
  #3  
Honda-Tech Member
 
K7-1Ktrevor's Avatar
 
Join Date: Mar 2008
Location: Salem, Or
Posts: 4,991
Likes: 0
Received 0 Likes on 0 Posts
Default re: power capability for a stock engine B18A/B that is turbocharged

300-350whp for stock Rods, the rods would be my biggest worry especially with how much torque a turbo ls makes at the 350whp mark.
K7-1Ktrevor is offline  
Old 05-31-2019, 06:23 PM
  #4  
Honda-Tech Member
 
Join Date: May 2007
Location: Maryland.
Posts: 1,113
Likes: 0
Received 1 Like on 1 Post
Default re: power capability for a stock engine B18A/B that is turbocharged

^^ Agreed. Stock rods will blow before the sleeves. Even shot peened with ARP bolts. Shot peening doesn't add any strength to the material anyway.

With aftermarket H beams, it's gonna be a mixed bag beyond 400whp as was already said. Some get lucky and can push farther, some don't.
Aradin is offline  
Old 05-31-2019, 07:15 PM
  #5  
Honda-Tech Member
 
turbociv910's Avatar
 
Join Date: Oct 2005
Location: expensive land, usa
Posts: 2,471
Likes: 0
Received 0 Likes on 0 Posts
Default re: power capability for a stock engine B18A/B that is turbocharged

330 whp be fun, run 12s and last for ever..
turbociv910 is offline  
Old 06-01-2019, 11:09 AM
  #6  
Honda-Tech Member
 
Balor_Gr's Avatar
 
Join Date: Sep 2012
Location: Greece
Posts: 827
Likes: 0
Received 0 Likes on 0 Posts
Default re: power capability for a stock engine B18A/B that is turbocharged

Considering LS has both worse Rod stroke ratio and rod width id say dont go over 8.000 rpm and get a turbo on the big side. Early torque hit with a GT3071 will be hell compared to the same hp target with a GT35.Off course your trading drivability and fun with reliability...
Balor_Gr is offline  
Old 06-01-2019, 11:28 AM
  #7  
Honda-Tech Member
 
Chance EG's Avatar
 
Join Date: Jan 2013
Location: Austin, TX
Posts: 1,651
Likes: 0
Received 0 Likes on 0 Posts
Default re: power capability for a stock engine B18A/B that is turbocharged

Originally Posted by K7-1Ktrevor View Post
300-350whp for stock Rods, the rods would be my biggest worry especially with how much torque a turbo ls makes at the 350whp mark.
Originally Posted by Aradin View Post
^^ Agreed. Stock rods will blow before the sleeves. Even shot peened with ARP bolts. Shot peening doesn't add any strength to the material anyway.

With aftermarket H beams, it's gonna be a mixed bag beyond 400whp as was already said. Some get lucky and can push farther, some don't.
Derp, forgot he's using OEM rods. I'd say low 300s then as well.
Chance EG is offline  
Old 06-04-2019, 03:08 AM
  #8  
O.G. triple O.G.
 
NVturbo's Avatar
 
Join Date: Dec 2003
Location: CHARLOTTE
Posts: 4,829
Likes: 0
Received 0 Likes on 0 Posts
Default Re: power capability for a stock engine B18A/B that is turbocharged

Low 300hp, depending on what turbo you're planning to use.
NVturbo is offline  
Old 06-05-2019, 01:26 PM
  #9  
Honda-Tech Member
 
Join Date: Jan 2013
Location: The South - Roll Tide !!!
Posts: 3,457
Likes: 0
Received 0 Likes on 0 Posts
Default Re: power capability for a stock engine B18A/B that is turbocharged

270-300 wheel HP if you keep the redline stock. Less if you plan to rev it up high because of the rods, and no more than 325 to 350 wheel hp because of the stock sleeves if you have done a rod/piston upgrade.

Also, the lower boost pressures the better to meet these target HP numbers... if it takes 25psi to get to 300 wheel hp, it is going to break.
JRCivic1 is offline  
Old 06-24-2019, 12:59 PM
  #10  
Honda-Tech Member
Thread Starter
 
Join Date: Jul 2013
Posts: 60
Likes: 0
Received 0 Likes on 0 Posts
Default Re: power capability for a stock engine B18A/B that is turbocharged

I guessing the consincses is 300-350hp. What is I up greaded the rods and run a vtec head. What's the capability of the stock sleeves. Should a block guard help at all. Whats a good one that dosen. Have cooling issues
purposebuilt is online now  
 


Thread Tools
Search this Thread

Contact Us - About Us - Archive - Advertising - Cookie Policy - Privacy Statement - Terms of Service

© 2019 MH Sub I, LLC dba Internet Brands

We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to Amazon.com and affiliated sites.
 
  • Ask a Question
    Get answers from community experts
Question Title:
Description:
Your question will be posted in: