Few days ago I went in a tuner here in Greece with the name Sevntalis. He is the official factor of jenvey throttle bodies. He use DTA engine managment to setup throttle bodies.
Also he improves cylinder heads with flowbench usage.
I ask him for my car, what can I do to have more power.
I told him for throttle bodies and he recomend me only the direct to head throttle bodies, for use in road aplications because they are the more stability in weather conditions, and the easier to adjusting and work well.
For direct throttle bodies, dta managment, ecu loom, setup in the car, and adjusting in the dynamometer he want 3.500 euro.
He told me that I must change the standard exhaust manifold also, but I have already the Sbd type A.
He said to me that I will see ~35bhp+ (about 185 bhp).
But his opinion was to not buy throttle bodies foar rod use espesially when I drive the car 99% in the city.
He recommend me to put a inlet manifold, (not lexmaull or dbilas, I don't remember what brand was the manifold ) and we will change the standard chip of the ecu, with another (not superchip or somethink like that) but with a eprom I think that he will adjust and setup in the dynamometer, with the specs which have my car, (exhaust manifold, k&n panel filter, 54mm exhaust diamiater) and what other have only my car and not whichever vauxhall with the same engine but possible with different specs.
He told me that I will see about 20-25 bhp more from the standard with specs of my car, and also he told me to go the car for a dyno test like it is now to see the difference after the conversion.
The cost for the inlet direct maniford (I don't remember the brand ), for the new chip, and the adjusting in the dynamometer is 1100 euro.
I will keep the standard chip.
Also he told me that I will see so big improvment because c20xe engine are very restricted from opel-vauxhall on inlet manifold and exhaust manifold. If you change this two parts with new programming you will see the performance that he told me.
What do you think?
Is that possible or no?