|
1 Attachment(s)
Try an interesting little trick. This has been debated on the other forum briefly.
Put you car in neutral and let the idle settle (no cheating https://www.nopistons.com/forums/pub...DIR ) Jam you foot on the gas and take it to redline. What manifold pressure do you reach? Datalogging is the most accurate way to tell of course. I just gave this a try. My car is not tuned at all, I've only been tuning the vacuum bars using a narrow band O2 sensor in an attempt to improve around town driveability and fuel mileage while attempting to sort out ECU glitches. (All better now!!!) Here is what I got on stock ports and a GT42 hybrid. Some numbers from other popular turbos would be nice for comparison. Stock turbos too. Please mention any porting you have. FYI 20.53 Kpa translates to 2.98 PSI |
Well with a blown motor I could get .1psi from 0 throttle to 8k redline https://www.nopistons.com/forums/pub...O_DIR#>/11.gif
|
I spool at 3000 rpm with the stock ct26 and stock exhaust.
|
This means nothing really except maybe how shitty your car is tuned. Try taking timing away and adding a **** load of fuel. I gurantee you will see more boost.
|
Of course. If I wanted to get really high boost I'd just flip the anti-lag switch. https://www.nopistons.com/forums/pub...>/rolleyes.gif
That isn't the point. The point is I would like to compare different turbos to see response. My timing in the vacuum bars is within a few degrees of what most maps I see posted are. My fuel is likely only a little bit rich as I have been fiddling with it using the O2 sensor voltage readout. People always claim this and that about boost response in different turbos, some real data would be appreciated, I think. |
Originally Posted by TYSON' date='Sep 18 2003, 09:47 AM
Of course. If I wanted to get really high boost I'd just flip the anti-lag switch. https://www.nopistons.com/forums/pub...>/rolleyes.gif
That isn't the point. The point is I would like to compare different turbos to see response. My timing in the vacuum bars is within a few degrees of what most maps I see posted are. My fuel is likely only a little bit rich as I have been fiddling with it using the O2 sensor voltage readout. People always claim this and that about boost response in different turbos, some real data would be appreciated, I think. mike |
Nice. I couldn't remember how high it would go before.
|
Umm ... my car won't crank. :(
|
About 12 or 13 psi with a rev to 9000.
Carbureted, 62-1 with 8.5 rotors. |
Originally Posted by j9fd3s' date='Sep 18 2003, 02:43 PM
[quote name='TYSON' date='Sep 18 2003, 09:47 AM'] Of course. If I wanted to get really high boost I'd just flip the anti-lag switch. https://www.nopistons.com/forums/pub...>/rolleyes.gif
That isn't the point. The point is I would like to compare different turbos to see response. My timing in the vacuum bars is within a few degrees of what most maps I see posted are. My fuel is likely only a little bit rich as I have been fiddling with it using the O2 sensor voltage readout. People always claim this and that about boost response in different turbos, some real data would be appreciated, I think. mike [/quote] you are correct sir.... sometimes a lil over https://www.nopistons.com/forums/pub...IR#>/smile.png |
| All times are GMT -5. The time now is 05:56 PM. |
© 2024 MH Sub I, LLC dba Internet Brands