|
Author
|
Topic: KB Pistons VS Nitrous
|
lky_3
¯
Member # 1116
|
posted
 
 
Can KB Hyper-U Pistons handle Nitrous and if so, in what capacity? 75, 150, 200 shot? What do you think?
--------------------
89 GT
Yes, Primer is a color!
Posts: 891 | From: City of Angels / 91405 | Registered: Apr 2002
| :
|
|
SmokinLX
¯
Member # 1684
|
posted
Probably not a good idea but You might get away with the 75 shot, I would add a couple gallon's of good gas to the mix if You are going to do it.
--------------------
Dont claim power if ya cant mile per hour. 10 second AOD
Posts: 4388 | From: East Bay | Registered: Aug 2002
| :
|
|
turbo50
¯
Member # 6700
|
posted
I ran 215hp shot on factory hyp pistons.
Blew headgaskets but never hurt a piston.
Once the motor was apart tho I could tell it was on borrowed time. I thinkyou cna kill the block first.
--------------------
.........when was the last time YOU built something with YOUR own hands?
I offer quality sidework at reasonable prices. PM ME
Posts: 7606 | From: Discovery Bay, California | Registered: Apr 2006
| :
|
|
svfreerider87
¯
Member # 5748
|
posted
whatever you squeeze, don't go cheap on the fuel, bottom line, gotta pay to play, play right.I've seen a 306 with forged bottom end and speed pro pistons get ripped literally shreds, what happens when you squeeze 175 shot on pump 91.
--------------------
Dreamspeed Motorsports
Posts: 1685 | From: Sunnyvale | Registered: Jun 2005
| :
|
|
FordManDan
¯
Member # 432
|
posted
Here's the deal:
As this argument is concerned: A piston is a piston if the air fuel ratio is safe.
I've sprayed on cast pistons, without worry. KB will tell you they've hit their hypers with 400+ HP NOS shots without failure.
If you run a lot of nitrous, you'll eventually have a lean condition for variety of possible reasons. When / if that lean condition occurs, will your pistons be able to hold up? If your pistons are Forged, the answer to that question is: "Most Likely". If they're not Forged, there's a good chance the answer is: "No".
Hypers also require larger ring gaps that other pistons. Many people ignore this and suffer engine failures....then they do the human thing and blame the pistons and not their reading comprehension level.
-dan
[ September 04, 2008, 08:19 PM: Message edited by: FordManDan ]
--------------------
1971 Maverick Grabber
2001 SVT Lightning
1969 Plymouth Roadrunner 440-6
Posts: 364 | From: Modesto | Registered: Sep 2001
| :
|
|
threethirty1
¯
Member # 7814
|
posted
is this the same for boost applications as well?
--------------------
1987 Black GT
factory zero option car
Posts: 777 | From: North Bay | Registered: Jul 2007
| :
|
|
svfreerider87
¯
Member # 5748
|
posted
quote:
Originally posted by threethirty1:
is this the same for boost applications as well?
that's a whole nother ball game.
--------------------
Dreamspeed Motorsports
Posts: 1685 | From: Sunnyvale | Registered: Jun 2005
| :
|
|
FordManDan
¯
Member # 432
|
posted
quote:
Originally posted by threethirty1:
is this the same for boost applications as well?
Yes, pretty much. A lean condition with higher than "standard" cylinder pressure (nitrous or boost)can cause piston failure.
While both Nitrous and Boosted applications have to deal with changes in the atmosphere / environment in which they are running, nitrous applications are even more inconsistent because of changes in bottle pressure, etc.
-dan
[ September 04, 2008, 10:29 PM: Message edited by: FordManDan ]
--------------------
1971 Maverick Grabber
2001 SVT Lightning
1969 Plymouth Roadrunner 440-6
Posts: 364 | From: Modesto | Registered: Sep 2001
| :
|
|
threethirty1
¯
Member # 7814
|
posted
Right on, thx Dan.
--------------------
1987 Black GT
factory zero option car
Posts: 777 | From: North Bay | Registered: Jul 2007
| :
|
|
Email this post to someone!
Printer friendly view of this Ford topic
