# GAZ 31029 and IKARUS-263 engines — MUPP "Ekspress", Stavropol

**IE A013**  
MUPP "Ekspress", Stavropol · Russia · 2002

Compression rose in all cylinders of both vehicles, cylinder-to-cylinder spread narrowed. GAZ 31029 and IKARUS-263 engines, MUPP Ekspress, Stavropol.

## Measured

- compression evened out across the cylinders — ****
- compression across the cylinders, GAZ 31029 6.6 → 7.2 · IKARUS-263 17.0 → 24.5 kgf/cm² — **2.9-66.7 %**

## Conclusion

Compression rose in all cylinders of both vehicles, cylinder-to-cylinder spread narrowed

Page: https://industry.xado.com/case/ekspress_series
PDF report: https://industry.xado.com/pdf/TIER%20A/ExpressStavropol/GAZ-31029-IKARUS-263/IE-A013_XADO_ExpressStavropol_GAZ-31029-IKARUS-263_EN.pdf