Opel Forums  

Go Back   Opel Forums > Performance and Racing > Performance > Opel Engine Performance Modifications
Home Opel Groups Members Map eBay Search

Reply
 
LinkBack Thread Tools Display Modes
Old 11-04-2007   #76 (permalink)
Opeler
 
Kadett-o-Maniac's Avatar
 
Join Date: Oct 2007
Location: Rüsselsheim/Deutschland
Posts: 10
Classified Rating: 0% (0)
Kadett-o-Maniac is on a distinguished road
Originally Posted by Manta72 View Post

For a more radical approach, yo can try the Steinmetz ST17 or Irmscher 555.1 camshafts. These are much "wilder" cams and will need further modifications such as a twin carburator set-up, bigger valves, ported heads, and a good exhaust system.
Yes, this is true, i can approve this!

Here in Germany is the old Steinmetz ST 17 or the Mantzel M 17 H one of the best profile in cams, which you can get to use it on the street or in semi race!

She has 320° duration 11,8mm lift complete and 5,5mm in top dead center and 104° valve overlap, but you must use a single port for every intake, at best with Weber carbs in 45 or 48mm and the other goodies aforesaid!

I use also an old profil from Irmscher, the IRM10 with 312° 12,3mm 4,25mm 107° with a street ported 2,0 head with original valves in 42/37mm on a original 2,4 block, 45mm double webers and a 63,5mm exhaust system and the engine has 175 hp at 5800 rpm and 227 nm torque at 4800 rpm!

There were a lot of power from 2000-6000 rpm and no hole in acceleration, but i use a ZF 5 gear transmission with short gear ratio, that helps a little bit in acceleration!

In my next engine, i will also use the ST 17 cam, then i will tell about the power envolvement...

Best regards Ronny

Last edited by Kadett-o-Maniac; 11-04-2007 at 03:12 PM.
Kadett-o-Maniac is offline   Reply With Quote Top Home
Reply

Bookmarks


Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is Off
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On


All times are GMT -4. The time now is 11:38 AM.


Powered by vBulletin® Version 3.7.3
Copyright ©2000 - 2008, Jelsoft Enterprises Ltd.
Search Engine Optimization by vBSEO 3.2.0
1998-2008 OpelGT.com - OpelGT .com is not affiliated with General Motors Corp. or it's Adam Opel Division.