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Tuning Tips
 
We have gathered a number of answers to questions often made to us relative to motor tuning – divided into the following main fields:

 Direct steering system  Engine conversions
 Pistons/forged pistons  Exhaust manifolds/exhaust systems
 Oil pumps  Intake pipes
 Chip tuning  Camshafts
 Concrete tuning measures  General questions
DIRECT STEERING SYSTEM
What is a direct steering system? OUR TIP ...

Direct steering for Corsa A, Kadett C, Ascona A, Manta B etc. – how much more direct is this steering system compared to a standard steering system? Is it possible to get a TÜV certificate for this steering system?  OUR TIP ...

I have got an Opel Kadett GSI 16 V, year of manufacture 2/89, and would like to know if there is a direct steering system for this car? OUR TIP ...

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ENGINE CONVERSIONS
Do you also convert cars from 8V to 16V or turbo? OUR TIP ...

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PISTONS/FORGED PISTONS
What advantages do forged pistons have? How are they manufactured? Why are they manufactured in oversize? OUR TIP ...

Have you got oversize pistons for X30XE in your product range? What are your delivery times? OUR TIP ...

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EXHAUST MANIFOLDS/EXHAUST SYSTEMS
Does the exhaust manifold for Astra F 2.0 16V outlet Ø 50 mm fit in on-road systems with original cat?? OUR TIP ...

Does the exhaust manifold of 2,0 l CIH engines also fit the head of 2,4 l engines? Or is there a difference between the cylinder heads (apart from the inlet openings)? OUR TIP ...

Do you offer the race exhaust systems for Opel Tigra also with TÜV certificate? Is there any possibility of registering the exhaust system ? OUR TIP ...

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OIL PUMPS
How durable are oil pump gear wheels in the 1,6 16V respectively 2,0 16V engine? OUR TIP ...

How does the relief valve of an oil pump work? OUR TIP ...

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INTAKE PIPES
What are the costs for the installation of an intake pipe in a Corsa B 1,4 16V? OUR TIP ...

How much time does the installation take? OUR TIP ...

Is the modification of our intake pipe compatible with an already modified electronic control unit or are complications possible? OUR TIP ...

Does the “Rotkäppchen” intake pipe (instead of original SFI case ) +6 hp for the C20XE DOHC 16V engine have a TÜV certificate? OUR TIP ...

Do insurance classification and tax rate change when a special intake pipe is installed? OUR TIP ...

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CHIP TUNING
How does chip tuning work? OUR TIP ...

Is chip tuning possible with the Astra G OPC? OUR TIP ...

Is chip tuning possible with my KADETT-E-CC 1.3i with catalytic converter? Do you offer alternative tuning parts for this cat car? OUR TIP ...

Tuning my Opel 1.6I Kadett E. Which do you recommend:
chip tuning or a different camshaft?
OUR TIP ...

Does chip tuning with smaller engines such as Corsa B 1.0 12V or Corsa C 1.2 16V make sense? OUR TIP ...

In the internet there is offered a tuning chip that promises an additional performance of about 30 hp and an additional torque of 70 nm! What is your opinion on this? OUR TIP ...

I have bought a chip at an auction / from a private person. Can you readjust my engine with this chip? How much increase in performance can I expect? OUR TIP ...

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CAMSHAFT
Camshaft norm OUR TIP ...

Does the race camshaft of a Corsa GSI 1.6i fit into the 1.6S (90 hp; Big Block) or into the 1.4i? If so, how much more performance can be achieved by the installation? OUR TIP ...

Complete camshaft kit OHC (8V) incl. cam followers: Are there in addition any new parts needed in order to install the kit without scruples? How much does performance increase with this kit and a 1.8 l OHC engine? OUR TIP ...

Which camshaft do you recommend for an Opel Corsa B with 1.2 l engine? OUR TIP ...

Are stronger valve springs automatically enclosed with the camshafts you offer? OUR TIP ...

Which camshaft can you recommend for the Opel Omega 2,0 (85 kw), initial registration 11/1994 (OHC)? OUR TIP ...

How much does performance of the 1,4 – 1,6 Ecotec engines increase when 256° camshafts are used? OUR TIP ...

Which camshaft is best for an Ascona C 2,0e with inlet manifold and group A exhaust for on-road use? OUR TIP ...

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CONCRETE TUNING MEASURES
Astra G 1,8i / 16V / year of manufacture 1999 OUR TIP ...

Astra Caravan 1,6i / 52 kw / 71 hp OUR TIP ...

Corsa B 1,2i / 8V / 45 hp / year of manufacture 1994 OUR TIP ...

Corsa B three-cylinder / 1,0 12V 40 kw / 1,2 16V 48 kw OUR TIP ...

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GENERAL QUESTIONS
Can I exchange my 2.0 l 16V engine for a different, completely assembled engine with more power? OUR TIP ...

Motor tuning Corsa B 1,0 12V (55 hp)
Can you build for me a different, more powerful engine?
OUR TIP ...

What’s the difference between C20XE engines from the year of manufacture of 1988/1989 and later models? Do these have a “Cossi head”? Is there a difference in performance? OUR TIP ...

Does it make sense to enlarge and polish the canals of the cylinder head? OUR TIP ...

What’s the difference between a 4-point and a 6-point flywheel? OUR TIP ...

What does “against exchange” mean? OUR TIP ...

Is it possible to get from you a TÜV certificate for a K&N air filter for the Kadett Cabrio 2,0 l 8V, year of manufacture 1989? OUR TIP ...

Is it possible to mount a flywheel of a 2,0 l CIH with Manta B transmission to a 2,4 l CIH engine? Which screws do you recommend? OUR TIP ...

Which K&N air filters do you recommend for an Opel Kadett C Coupé with 45er Weber carburettors? OUR TIP ...

Does it make sense to convert a Kadett C Coupé 2,4 l from 45er Weber carburettors to 48er or 50er Weber carburettors? OUR TIP ...

Have you got reinforced cylinder head screws for Opel Vectra A GT 2,0 8V in your assortment? OUR TIP ...

My cylinder head from C20XE or C20LET has got a crack (oil in the water). How long does a repair with you take? Do you give any guarantee for the repaired cylinder head? OUR TIP ...

Can I buy from you inlet manifolds and camshafts for the Kadett C 1.2N OHV with 38 kw / 52 hp? Does the set of main and big/small end bearings also fit with this engine? OUR TIP ...
 
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