240Z, 260Z, 280Z Performance / Technical Discussions related to performance motor enhancements, upgrades.

more horsepower for my stroker please

Old 03-06-2008, 10:59 PM
  #1  
Registered User
Thread Starter
 
byrneZ's Avatar
 
Join Date: Dec 2007
Posts: 17
more horsepower for my stroker please

hey, i have a 78 280z with a couple month old engine. Its bored out to 3.1L, new cam, pistons, crank, head,.....all new. I recently took it out to the track and was expecting much more then what i got. Im a little straped for cash now so i was wondering what people think i should add for the most horsepower. Ive heard many things such as rising rate fule pressure regulater, electric water pump(which would only add a few) and ovcourse NOS, but i rather not mess with that so any suggestions would be great.
byrneZ is offline  
Old 03-06-2008, 11:16 PM
  #2  
Registered User
 
Join Date: Jul 2007
Location: dallas tx
Posts: 55
if you did that build right...go get some megasquirt and TUNE IT....ppl dont think about tunes but y dump thousands in and not spend another couple hundred on a tune so it doesnt blow....if you did it right and put some money into it you should be around 250+ rwhp and around 300+ at the crank and thats plenty in that car....till u go turbo=the right way
sticky280zx is offline  
Old 03-07-2008, 12:09 AM
  #3  
More Than Meets The Eye
 
WildmaN's Avatar
 
Join Date: Feb 2005
Location: Mesa, Az
Posts: 5,120
I agree, but I do give him credit though. Because yes I do want to turbo my '82 280zx. But I still would like to have a n/a that is stroked. (Just not sure if it will be my '81 or '82 slicktop) Because I would have the best of both. To each his own though. Good luck with your stroker Z. And I am sure you will figure out. And get what you think, will work best for what you want.
WildmaN is offline  
Old 03-07-2008, 10:24 AM
  #4  
The Good Twin
 
NismoPick's Avatar
 
Join Date: Aug 2005
Location: Wild Wild West, UTAH!
Posts: 20,616
Originally Posted by byrneZ
hey, i have a 78 280z with a couple month old engine. Its bored out to 3.1L, new cam, pistons, crank, head,.....all new. I recently took it out to the track and was expecting much more then what i got.
What is it that you were expecting? Have you dyno'd the car to get your current hp rating?
NismoPick is offline  
Old 03-07-2008, 11:16 AM
  #5  
I have a present for you...
 
theramz's Avatar
 
Join Date: Mar 2003
Location: dayton, nevada usa
Posts: 1,661
I heard that going to 3.1 doesn't do that much more. You have only increased the displacement by 10%. So bigger on everything else too. It's still breathing in and out of the same holes. Megasquirtnspark!
theramz is offline  
Old 03-07-2008, 11:20 AM
  #6  
NisTuner
 
duowing's Avatar
 
Join Date: Sep 2005
Location: Cleveland, Ohio
Posts: 2,800
Are you still running the 78' EFI?
duowing is offline  
Old 03-07-2008, 07:18 PM
  #7  
Registered User
Thread Starter
 
byrneZ's Avatar
 
Join Date: Dec 2007
Posts: 17
Originally Posted by duowing
Are you still running the 78' EFI?
no i plan on installing a magasquirt
byrneZ is offline  
Old 03-07-2008, 11:53 PM
  #8  
Registered User
 
Join Date: Jul 2007
Location: dallas tx
Posts: 55
likesaid....standalone system....and a tune + HEADWORK.....cam,angle job, valves, springs, all the rest of the stuff otherwise like he said all youve done is bore.....and maybe mill the head while youre at it if you didnt stroke it you should have upped the comp ratio with a higher set of pistons...did you do that or not?
sticky280zx is offline  
Old 03-08-2008, 12:01 AM
  #9  
Ruff Ryder
 
hoov100's Avatar
 
Join Date: Sep 2005
Location: palm desert
Posts: 6,140
headwork, MS, injectors and nitrous.
hoov100 is offline  
Old 03-08-2008, 05:13 PM
  #10  
Über User
 
snwbrderphat540's Avatar
 
Join Date: Sep 2005
Location: lemont, Illinois
Posts: 9,532
nitrous is crap. i wouldnt, thats a muscle car thing or a turbo car thing when trying to defeat turbo lag. u could always cheap out and go carb setup on the stroker. or ITB's
snwbrderphat540 is offline  
Old 03-08-2008, 09:54 PM
  #11  
Registered User
Thread Starter
 
byrneZ's Avatar
 
Join Date: Dec 2007
Posts: 17
no this is a complete list of what i did to the engine here it is
big bore kit
p90 heads
3 angle valve job
stage 3 performance cam set
f54 l28 block
89mm flat top pistons
240z rods
ld28 maxima crank
comprtition head gasket
new bearings new gasket set
new oil pump
new water pump
new timing chin set
coated 3-2-1 header
new injectors
performance flywheel
inlarged throttle body
and a cold air intake
byrneZ is offline  
Old 03-09-2008, 12:27 AM
  #12  
The Good Twin
 
NismoPick's Avatar
 
Join Date: Aug 2005
Location: Wild Wild West, UTAH!
Posts: 20,616
We'll try this again...

Originally Posted by NismoPick
What is it that you were expecting? Have you dyno'd the car to get your current hp rating?
NismoPick is offline  
Old 03-09-2008, 11:33 AM
  #13  
Registered User
Thread Starter
 
byrneZ's Avatar
 
Join Date: Dec 2007
Posts: 17
well i was expecting faster then 16.7 in the 1/4. part of that might be my shifting but that around stock speed. and no i havent dyno'd
byrneZ is offline  
Old 03-09-2008, 12:23 PM
  #14  
Über User
 
snwbrderphat540's Avatar
 
Join Date: Sep 2005
Location: lemont, Illinois
Posts: 9,532
16.7?!?!?! buwahaha! that is absolutley terrible. i think it could do better stock! thats definatly the price you pay for using stock EFI for a 2.8 low compression motor on a high compression 3.1 liter motor thats for sure. part of that is using the stock injectors im sure.
snwbrderphat540 is offline  
Old 03-09-2008, 04:17 PM
  #15  
Registered User
Thread Starter
 
byrneZ's Avatar
 
Join Date: Dec 2007
Posts: 17
yea im looking at an aftermarket efi but im not sure which one to pick there are so many
byrneZ is offline  
Old 03-09-2008, 08:00 PM
  #16  
The Good Twin
 
NismoPick's Avatar
 
Join Date: Aug 2005
Location: Wild Wild West, UTAH!
Posts: 20,616
What is your hp goal? What is your price range? How did you get this far into your stroker motor w/o considering fuel injection upgrades????!?!?!
NismoPick is offline  
Old 03-09-2008, 08:36 PM
  #17  
Stupid Hurricanes...
 
260zturbo's Avatar
 
Join Date: Jun 2007
Location: louisiana
Posts: 1,481
wow thats pretty bad, get a standalone setup but u should get a wideband and see what your afr is at.
260zturbo is offline  
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
GTH
280ZX (S130) Forums
15
05-20-2011 12:19 PM
1990300zx1990
300ZX (Z32) Forums
31
07-01-2006 10:11 AM
VandiL
300ZX (Z32) Performance / Technical
29
04-17-2006 09:37 PM
Samz
280ZX Performance / Technical
18
10-02-2003 11:32 AM
lonito
300ZX (Z32) Performance / Technical
1
01-21-2002 11:06 AM


Thread Tools
Search this Thread
Quick Reply: more horsepower for my stroker please


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.