don't use carbs, they are prehistoric!
Tuning Help needed : What's the next in the tuning of my cinque ?
- Thread starter Natou12
- Start date
Currently reading:
Tuning Help needed : What's the next in the tuning of my cinque ?
All a carb will do is turn your go pedal into a noise pedal. That's all mine does, if I floor it I get lots more noise but not much else 
ITBs, on the other hand, if you can find something small enough.
With regard to TB sizes, it's about the ability of the engine to use the fuel mix supplied to maximise efficiency.
A 40mm TB should be good for around 90Bhp for a NA engine, but only if the engine design allows. Just throwing together a lot of so called performance parts does not mean they will work in harmony and produce good torque or/and big Bhp.
The most important thing with EFI is full control of the Ecu settings.
A factory type Ecu is designed to run a factory engine, and a chip or cheap generically improved remap is designed to improve on the factory setup. Major deviations from the original mechanical design will need a complete reconfiguration of the Ecu settings to match the changes and get peek performance.
The standard Ecu will do it's best to adapt to the changes, or throw a wobbler, but will not be ideal.
Fitting a piggy back/stand alone Ecu can optimise things and extract a lot or very little, depending on how well the upgrades work together, but setting up properly on an RR is not cheap.
The best option for good power at an economical price is a 1242/1368 16v engine with standard Ecu upgrade.
Before undertaking any mods, you need to sit back and decide what you want and what your budget is. The price of some upgrades for a 1.1 engine to achieve what you want will become way more costly than a cubic inches upgrade.
A 40mm TB should be good for around 90Bhp for a NA engine, but only if the engine design allows. Just throwing together a lot of so called performance parts does not mean they will work in harmony and produce good torque or/and big Bhp.
The most important thing with EFI is full control of the Ecu settings.
A factory type Ecu is designed to run a factory engine, and a chip or cheap generically improved remap is designed to improve on the factory setup. Major deviations from the original mechanical design will need a complete reconfiguration of the Ecu settings to match the changes and get peek performance.
The standard Ecu will do it's best to adapt to the changes, or throw a wobbler, but will not be ideal.
Fitting a piggy back/stand alone Ecu can optimise things and extract a lot or very little, depending on how well the upgrades work together, but setting up properly on an RR is not cheap.
The best option for good power at an economical price is a 1242/1368 16v engine with standard Ecu upgrade.
Before undertaking any mods, you need to sit back and decide what you want and what your budget is. The price of some upgrades for a 1.1 engine to achieve what you want will become way more costly than a cubic inches upgrade.
Last edited:
found both my turbo 8v's to have been reliable myself, even when used every day (not that i do use the current one that much these days). Only downer for me is how thirsty they are really. But would agree really 16v na conversion is best bang for buck upgrade, and you end up with a reliable and can be driven economically, something i swear is impossible in a 8v turbo.
Last edited:
Thanks for all your answers guys.
But, as I said in the 1st post, I can't do a swap on my baby. It's just to rare of a car to do so. The block is staying a 1.1 no question. If I do a swap, it will be on my second cinque (maybe next summer) but not on this one, a Giannini sporting in this condition and with this mileage is to great of a value.
Regarding the ECU, I have the CRICH chipped ECU. Now, with all the parts I have listed on the 1st post (upgrades I did), is this ECU still good, or should I go with something else ?
But, as I said in the 1st post, I can't do a swap on my baby. It's just to rare of a car to do so. The block is staying a 1.1 no question. If I do a swap, it will be on my second cinque (maybe next summer) but not on this one, a Giannini sporting in this condition and with this mileage is to great of a value.
Regarding the ECU, I have the CRICH chipped ECU. Now, with all the parts I have listed on the 1st post (upgrades I did), is this ECU still good, or should I go with something else ?
It won't be perfect (as it wasn't developed with those mods in mind) but it should be pretty good. You can only really optimise the performance by having absolute control of all the engine parameters on a rolling road (which, essentially, means an aftermarket ECU).
A rolling road session (a simple power session shouldn't be overly expensive)will give you some idea of where you are (as would a standing 1/4 mile time).
A rolling road session (a simple power session shouldn't be overly expensive)will give you some idea of where you are (as would a standing 1/4 mile time).
Great stuff.
are we taking bets on the result then, just cause we can..
I'm gonna guess 73bhp at the flywheel, sounds about right ball park to me and is my favourite number.
I'm gonna guess 73bhp at the flywheel, sounds about right ball park to me and is my favourite number.
My guess, 77bhp. Flywheel.
But he's got a race engine.
its about right for the spec really, but the unknown here is the ported and flowed head. It will make a difference for sure but by how much depends on how well the work was done, could potentially make a huge difference but you will only find out with a power run for sure. But 70-80bhp is nothing bad at all for a 1.1, remember its only 54bhp from factory so percentage wise its a huge increase - around 50% increase over standard.
Ultimately though this is why everyone is telling you to upgrade. With a P75 engine dropped in i reckon you will be where you are now except all your goodies like the cam etc will bolt straight on. And really even if it is a rare edition, its not like the engine was messed with at all, thats just normal
Ultimately though this is why everyone is telling you to upgrade. With a P75 engine dropped in i reckon you will be where you are now except all your goodies like the cam etc will bolt straight on. And really even if it is a rare edition, its not like the engine was messed with at all, thats just normal
Last edited:
ming is just taking the michael out of a certain member cause he can't drop it.
Haha ok guys !
What I will do, is do the dyno test with the engine in this current state. Then, I'll do professionally ported the head, and do a dyno test again to see difference. For the moment, I still have original one on, as I preferred having the original low miles one over the used one of medion, even if it was ported.
When you say that all my upgrades will go on a punto 75 engine, is it really everything ? From tb to cam and full exhaust ?
How much phb can I expect from a punto 75 with all my parts ?
I'm thinking of doing it on an other cinque, normal sporting, that will be track ready..
What I will do, is do the dyno test with the engine in this current state. Then, I'll do professionally ported the head, and do a dyno test again to see difference. For the moment, I still have original one on, as I preferred having the original low miles one over the used one of medion, even if it was ported.
When you say that all my upgrades will go on a punto 75 engine, is it really everything ? From tb to cam and full exhaust ?
How much phb can I expect from a punto 75 with all my parts ?
I'm thinking of doing it on an other cinque, normal sporting, that will be track ready..
the manifold should fit as most are for 1242 engines but there is 1108 manifolds as well and they are a little shorter so may not quite fit without modification.
cam will go straight in
the P75 has a different tb without injector but sure it won't be hard to use the bottom half of yours (this bit is the tricker 40mm bit, top half is just standard) with the top half of a P75 tb. Although the P75 one is already 38mm so not much smaller than the tricker 40mm jobby your using.
The Dexcraft shoudl fit as well, only possible issue is clearance with the bonnet but they look pretty flat so should be ok, never actually seen one in person yet.
cam will go straight in
the P75 has a different tb without injector but sure it won't be hard to use the bottom half of yours (this bit is the tricker 40mm bit, top half is just standard) with the top half of a P75 tb. Although the P75 one is already 38mm so not much smaller than the tricker 40mm jobby your using.
The Dexcraft shoudl fit as well, only possible issue is clearance with the bonnet but they look pretty flat so should be ok, never actually seen one in person yet.
Similar threads
- Question
