Advantage/Disadvantage of Bore and Stroke?
- Sam Baker
- Regular Member
- Posts: 1461
- Joined: May 23rd, 2003, 2:01 am
- Location: Wellington, New Zealand
Advantage/Disadvantage of Bore and Stroke?
hey i was just wondering what kinda power gains you would get by boring/stroking a KLZE (i'm not gonna do it, but my friend is thinkin bout it).. and how would it effect responsiveness? o also, whats the highest you could bore it out to? like 2.8L or so? i know this is a noobish question, but im just curious cuz i've heard of people doing it before. thanks
92 Autozam AZ3
- babyblueMX3
- Supporting Member
- Posts: 3755
- Joined: February 23rd, 2003, 2:01 am
- Location: Gatineau,Quebec,Canada
- Contact:
to be a 2.8 you have to resleeve and that will cost your friend an harm and a leg...I only saw once a guy with a 2.5 that was stroked..so I don't think you'll find much info on a 2.5 stroked.
RIP 400whp ZE-T MX-3
Current car : Golf 01 GTI 1.8T (15 psi)
Current car : Golf 01 GTI 1.8T (15 psi)
- mitmaks
- Senior Member
- Posts: 8704
- Joined: September 10th, 2001, 2:01 am
- antispam: ~SPAM*SUX~
- Location: Spokane, WA
- Contact:
youll get more hp/tq with bigger pistons, port heads, itll spin slower though. I wonder how big you can bore k8? 2.0...2.5L???
Magnum s/s lines, strut bars, carbon fiber bezel, indiglow gauge, Sony Xplod, inverted c/f hood, SRD lower tie bar '93 GS SE '95 Cobra SVT #2722 '68 Charger R/T 440
http://www.cardomain.com/id/mitmaks
http://www.cardomain.com/id/mitmaks
- Sam Baker
- Regular Member
- Posts: 1461
- Joined: May 23rd, 2003, 2:01 am
- Location: Wellington, New Zealand
yea i told him bout CZT 11:1 pistons.. but he's set on boring it to 3.0L. i duno if thats even possible! but with that CZT kit, i would think that would be enough power really.. thats what you got right steve? the only thing is that he wants NA with no sc or turbo. sounds like a lotta work
92 Autozam AZ3
2.6ltr
skyline engines come with that bore i htink... so theoretically you could steal their pistons and s--- as they are better for more hp naturally.
skyline engines come with that bore i htink... so theoretically you could steal their pistons and s--- as they are better for more hp naturally.
1994, GS, KLZE, 67mm TB, LightFlywheel, Centreforce Stg 3 Clutch, CAI, KL36 ecu, B&M shortshifter, Solid poly mounts, lightweight Aluminum Cross memeber, 2.5 high flo cat, 2.5 all back, Tanabe Exhaust, optima battery, ZX2 HD tokicos, eibach prokit, black altezzas.....
http://www.modifiedmazda.com" onclick="window.open(this.href);return false;.
http://www.modifiedmazda.com" onclick="window.open(this.href);return false;.
- babyblueMX3
- Supporting Member
- Posts: 3755
- Joined: February 23rd, 2003, 2:01 am
- Location: Gatineau,Quebec,Canada
- Contact:
yeah I got my piston/rod kit from czt. I got the 8.7 compression ratio thoughSam Baker wrote:yea i told him bout CZT 11:1 pistons.. but he's set on boring it to 3.0L. i duno if thats even possible! but with that CZT kit, i would think that would be enough power really.. thats what you got right steve? the only thing is that he wants NA with no sc or turbo. sounds like a lotta work
Think about that..You have ovebore 0.320" to get it to 3.0L...that is major stuff here
RIP 400whp ZE-T MX-3
Current car : Golf 01 GTI 1.8T (15 psi)
Current car : Golf 01 GTI 1.8T (15 psi)
-
- Senior Member
- Posts: 3825
- Joined: June 26th, 2003, 2:01 am
- Location: Puyallup, WA
Any dyno on that BABYBLUEMX3?...I have a 10 Gs to invest on the car and the engine kit from GTZ is in my list.
Any info you would like to give me, would be really appreciate.
My list:
2.5 klze
GTZ Engine kit
Custom Dual Exhaust System
Center Stage 3 Clutch
PRM intake system
Fuel control
...
Any info you would like to give me, would be really appreciate.
My list:
2.5 klze
GTZ Engine kit
Custom Dual Exhaust System
Center Stage 3 Clutch
PRM intake system
Fuel control
...
Compact Gladiator
"Do not follow the path, instead; go where there is no path and leave a trail"
WWW.GEOCITIES.COM/NEWFLOW81
"Do not follow the path, instead; go where there is no path and leave a trail"
WWW.GEOCITIES.COM/NEWFLOW81
- babyblueMX3
- Supporting Member
- Posts: 3755
- Joined: February 23rd, 2003, 2:01 am
- Location: Gatineau,Quebec,Canada
- Contact:
no no dyno yet..the engine is built but not in the car yet...newflow wrote:Any dyno on that BABYBLUEMX3?...I have a 10 Gs to invest on the car and the engine kit from GTZ is in my list.
Any info you would like to give me, would be really appreciate.
My list:
2.5 klze
GTZ Engine kit
Custom Dual Exhaust System
Center Stage 3 Clutch
PRM intake system
Fuel control
...
what is GTZ ?
RIP 400whp ZE-T MX-3
Current car : Golf 01 GTI 1.8T (15 psi)
Current car : Golf 01 GTI 1.8T (15 psi)
- bmwm3guy
- Regular Member
- Posts: 1066
- Joined: March 7th, 2004, 2:01 am
- Location: Gatineau, QC
- Contact:
yea... the motor on eBay was a 2.8L but I dunno how much of a block you would have left...
hey steve.. any pics of the motor?
hey steve.. any pics of the motor?
Last edited by bmwm3guy on January 8th, 2005, 5:46 pm, edited 1 time in total.
- babyblueMX3
- Supporting Member
- Posts: 3755
- Joined: February 23rd, 2003, 2:01 am
- Location: Gatineau,Quebec,Canada
- Contact:
- kiwi_MX3
- Regular Member
- Posts: 736
- Joined: August 10th, 2004, 2:01 am
- Location: Backpacking in Canada in vancouver 13march onwards
- Contact:
I will be looking into this later on in the year when im ready to
build my motor and will probably find its way into the FAQ's.
IE wall sizes left in blocks,
As to stroking motor's the perpose in most case's is not to
increase displacement of the engine but to change the rod
ratio which imparts different caracteistics on the motor
And of course getting bits to fit. my VW challanger motor used
chevy rod's and mitsubishi piston's more for the reliablitiy factor
than stroking...
but the three basic's of engine building remain the same.
Cam's, Carb's, Combustion.
But currently i have in the computer dyno base figures for the
KLZE and the Intake mainafold simply strangles the poor wee motor!
Hell a set of IDA carb's out the hood would bolt on 50-60HP and look
grouse doing it too.......
Matt
build my motor and will probably find its way into the FAQ's.
IE wall sizes left in blocks,
As to stroking motor's the perpose in most case's is not to
increase displacement of the engine but to change the rod
ratio which imparts different caracteistics on the motor
And of course getting bits to fit. my VW challanger motor used
chevy rod's and mitsubishi piston's more for the reliablitiy factor
than stroking...
but the three basic's of engine building remain the same.
Cam's, Carb's, Combustion.
But currently i have in the computer dyno base figures for the
KLZE and the Intake mainafold simply strangles the poor wee motor!
Hell a set of IDA carb's out the hood would bolt on 50-60HP and look
grouse doing it too.......
Matt
Kiwi - Native Bird Of New Zealand, semi-nocturnal, secretive bird
Flightless, though can be found flying firstclass
Poor eyesight, though can spot a good pub at 100yards.
Flightless, though can be found flying firstclass
Poor eyesight, though can spot a good pub at 100yards.