Tbi 1750 200bhp to 300 bhp - Alfa Romeo Forum
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(Post Link) post #1 of 32 Old 05-04-14 Thread Starter
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Tbi 1750 200bhp to 300 bhp

Hello my friends,
Recently I tuned my alfa 159 Ti tbi.

I most say I was very disappointed, the change is very minor.
(200 to 225 bhp).
Someone told me that there's Softwares for this car that can get the engine to 300 bhp.

If money is not an issue - how can I get my car to this performance?

Thank you very much.

Mg,
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You won't get 300 with just software I'm sure
You will need to help free up flow and maybe modified turbo and a very good tuner.
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Software can get the engine to the 300HP, the stock turbo can't
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(Post Link) post #4 of 32 Old 05-04-14 Thread Starter
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I know that software alone won't get me to 300.., did someone know such a big project like I want to do? Any tips..?
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First of all, where did you remap your tbi?
Second thereis no way to get 300 bhp whith this turbo.
Also you have to change the turbo/manifold, and all the exhayst with new downpipe.
What about the torque at your gearbox?
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I dont think 300bhp is possible. The Audi scene with the much more tunable 1.8T BAM engine struggle to raise the the bhp from 225 to 300 even with a new KO4 hybrid turbo, intercooler, stage 3 maps, induction, etc. To get over 300bhp you looking at big money, new cams, injection, etc. Id save your money and buy a car with more bhp to being with.
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well over 300 has been done, but you'll need to change the turbo, larger intake/IC piping, full exhuast system - and be willing to accept that for that power goal the turbo will be spooling up at 2.5-3k rpm rather than 1.5-2k
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(Post Link) post #8 of 32 Old 07-04-14 Thread Starter
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I have about 10,000$ to invest on the tuning, I like this alfa and I believe it possible, does someone know good Improvements Workshop accept auto delta?
Unfortunately I'm a alfa man- and there's no engine like the tbi that worth to tuned.
This is why I'm Determined to do that. There is no Italian car in the world that I can buy in this price - so I'd like to get more details/linkers/prices - if anyone knows.
Tnx
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Camshafts colombo/barriani
Trbo from G qv
Bigger intercooler
Bigger fuel injectors
New exhaust from the decat downpipe

One is the man who could really help you
GUS
http://www.alfatunemotorsport.co.uk/
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I wouldn't bother with camshaft a much, but I agree with turbo, intercooler, decat, injectors and clutch probably.
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The OEM 159TBi injectors/fuel pump are good for around 350bhp (same parts as GQV)

I imagine Quaiffe LSD would be a near essential too
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(Post Link) post #12 of 32 Old 08-04-14 Thread Starter
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Which company is the honest and recognize with alfa romeo tbi?
Is it really autodelta or there's more good and loyal companies (only for remap from 200 hp to 240hp)?
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How's absoulut tuning.? Against alfisti?
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(Post Link) post #14 of 32 Old 08-04-14 Thread Starter
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What is better? Remap or:
Novitec Powerjet 3 - Additional ECU for 1.8 TBi
Tnx
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As has been said above Gus at Alfatune is the place to go

http://www.alfatunemotorsport.co.uk/
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Theres some info in here you might find useful

https://www.alfaowner.com/Forum/alfa-...ng-my-gqv.html

Fred at ProAlfa is worth talking to
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(Post Link) post #17 of 32 Old 10-04-14 Thread Starter
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What is the difrence between box-remap tuning

I saw you wrote somthing about novitec box that you can pue has exterior" tuning.
Is ut better than the regular remap (in the computer of autodelta).

I didnt understand the difrences.
Anyone?
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Quote:
Originally Posted by 159Ti1750 View Post
I saw you wrote somthing about novitec box that you can pue has exterior" tuning.
Is ut better than the regular remap (in the computer of autodelta).

I didnt understand the difrences.
Anyone?
The way that I understand it is

The tuning boxes can alter only the engine parameters that it plugs into. In the case of Novitec/Powerjet this is throttle position sensor, manifold air flow and boost pressure. So the tuning box can do two things, one is altering the throttle mapping to make it sharper and second is raise the level of the boost in a very linear way - i.e. it will increase the normal level of boost by (for example) 30%, so it will increase torque and power but the character of the power delivery won't change

The remap on the other hand can change things like spark timing and injection timing as well as increase the boost levels by different amounts at different points in the rev range, and also increase the maximum rpm

I'm not against tuning boxes and they're better than a bad remap. But after I had my TBi remapped the thing I liked most was the increase in power higher up the rev range and the additional useable revs
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(Post Link) post #19 of 32 Old 10-04-14 Thread Starter
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Ty very much for your quick answer.
If you have 159 tbi i will share with you somthing.

1 week ago i went to a tunning shop that expert in vag cars (vw/Audi/seat/skoda).
The tuned my engine by remap the computer of my tbi with "absulout" company name (from austria).

Im filling a bit change maybe, but at the end i checked (by watch) before and after the tuning, and between 40 kilometer per hour (km/h) to 130 km/h it took me the same time ( 9.4 second both).

Does it mean the remap is bad?
Which kind of remap did you buy?
Is it a good way to check if the remap is "working" on my car (to check timings between 0-100 km/h or in my way 40 to 130 - on second and third gear)?

Also the gave me (the company from Austria) 2 week traying - and if I'm not happy with the result I'll get my money back.

I ll be glad for your answer or any one that understand about it.
Best regards,

Mg

Last edited by 159Ti1750; 10-04-14 at 22:31.
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Not sure I can answer all of the questions, but the remap I had was the Alfatuner one - although it was loaded to the car by another company
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Ok. I've been all day (today) in the tuning shop and worked together on the car. The upgrade my tuning in the comp , and now it's a "different world".
The car is amazing. Only with tuning it gets to 252 bhp!! (I checked).
Now I want to buy a turbo kit and mabe the methanol upgrade.
Did someone tried it (the methanol) on is car. How is it?
Any re commend.?
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Buy the Giuletta qv turbo, make an exhaust from downpipe 70mm an remap your car by the correct guy and then you will have 260-280 bhp totally safe .
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You'll need a bigger turbo , that is the bottleneck.
235hp GQV uses a bigger turbo , and the new 245hp a even bigger one
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Hi. 1st of all LJ_GQV's car made 300bhp with intercooler, remap, exhaust and intake...this has been proven.

My car has been running 285bhp since last remap/exhaust and intake, I now have Novitec powerjet 3 with octane booster and it feels stronger than remap - will see in two weeks time when we have an Alfa dyno day in SA.

I've had Water Meth installed on my GQV for nigh on 30mins...I didn't like the buzz the pump was making in the boot. I removed it, but without a tune the intake pipe to throttle was as cold as ice and the car held boost very well, so its not really a must but a nice to have in my opinion for anything under 300bhp...if you go over then do it.

A GQV has been fitted with a larger turbo by E-Tuners, read all about it here...this car runs 340 wheel horse power!

They changed to a larger turbo, some clever software, intercooler and exhaust and there you have 340whp!!!

It seems you really like the 159, so get a GQV k04 turbo, piping(is throttle body same size?) and then do ECU tuning...assuming ECU is the same? And proper mapping by someone that knows how to get past the MED17's built in parameters or what does one call those things? Limiters?

Having played around with software and Novitec, the software requires a specialist in the MED17 to know what their doing, LJ_GQV's ProAlfa knew what they were doing, so too does the E-Tuners guys who can raise rev limiters, include a launch control etc all in the standard MED17 Ecu...I think this car also has its electronic traction control removed when in D or something like that, contact the guys wat E-Tuners who did that big turbo conversion and go big all out, rather than force a GQV to 300hp...

Good luck and keep us posted!!!

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