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IPP Custom Pistons
MAHLE Performance Pistons
Int'l & US

Custom Pistons: We can make you a forged Piston for any stroke, bore or compression ratio. These can be used for street/strip injected blowers or turbo charged. Call us at (603) 378-0090.

Note on Rods: Based on our 40 years of racing experience, building motors and our 1000's of hours spent on our dyno's, we have found that the Import stock connecting rods are good up to approximately 200HP. If you expect to exceed these requirements by adding Nitrous or Turbo Charging, we strongly recommend that you upgrade your connecting rods along with any forged pistons.

 

IPP- international
IPP-euro: Offers Forged Pistons specifically made for vehicles used in the European marketplace. Pistons are manufactured for IPP-euro by Wiseco. Because of different comp ratios and engine requirements, we found a specific need to design unique pistons for the European marketplace. These new pistons are manufactured with the ability to install higher quality ring packages for better performance, more power and longer durability.  Email us for more info
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Helpful Piston Information:
Compressions and Overbores:

For Import motors the rule of thumb is 9.5 with Steel Heads, and 10.5 with Alum. Heads dissipate heat and allow for higher compression. Overboring adds to the Cubic inch (more HP), and increases compression.

The European marketplace has for years run their Imports in the 9.5-11.2 range (although they have slightly higher octane gas available).

So, if you want to make some easy HP, raise that compression and overbore. In most cases it's an easy 15-20% HP gain!

Example #1: VW Golf 1.8L (81mm std. bore) 88-91
At 9.0:1 comp = 90 HP
At 10-1 comp = 105 HP
That's a difference of 15% w/o an increased bore!
Example #2: VW Golf 1.8L (.020 overbore) 88-91
At 9.3:1 comp = 82HP
At 9.5-1 comp = 95HP

Bottom Line:
If you're rebuilding for stock or performance, raise the compression & overbore for an easy 15-25% HP
(depending on size).
 
Note: it's just the opposite with Turbos - you want lower compressions and smaller overbores!
 
 
 
 
 
 
 
 
 
 

Order/Tech Line: (603) 378-0090
Email:
[email protected]

Thank You for visiting Import Performance Parts
*All prices on this site are subject to change without notice. Import Performance Parts™ disclaims responsibility for any printing or typographical errors, and does not guarantee that all information is accurate.


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