[Kerry]

Running stock knock sensor settings. The car will never run with those settings as its getting tons of false knock, therefore killing all power and probly also running the injectors up to the 7 ms. trying to stop knock thats probly not their.

So this brings up a good topic. What should the sensitive be for the knock sensors be with a procharger? I guarantee stock will not work.

[Kerry]

The little 1.8 l motors I used to build had no knock sensors and I raised timing till it quite making power. That was a 4 cylinder I wonder if the same could be done for a v8 car motor, then set the knock sensors on the edge of that power.

[BeauRichardson]

Originally Posted by Kerry

Running stock knock sensor settings. The car will never run with those settings as its getting tons of false knock, therefore killing all power and probly also running the injectors up to the 7 ms. trying to stop knock thats probly not their.

So this brings up a good topic. What should the sensitive be for the knock sensors be with a procharger? I guarantee stock will not work.

Now this is some new information i haven’t heard. that is very interesting. So the settings i have on there now are the stock settings? or are you just saying in general. Did you find anything else going on with the tune?

[Chrome383Z]

14psi, E85, LT4 pump/injectors/stock cam I wouldn’t even do a pull on that. Lucky the knock sensors are doing their job….

Isn’t Ryne in Texas? Remote contact Ted at JRE…. You need someone who knows what they are doing or it’s not going to end well. Prob have to bump down to a lower E content. Maybe E60…. Good low side though. IMO

[BeauRichardson]

Originally Posted by Chrome383Z

14psi, E85, LT4 pump/injectors/stock cam I wouldn’t even do a pull on that. Lucky the knock sensors are doing their job….

Isn’t Ryne in Texas? Remote contact Ted at JRE…. You need someone who knows what they are doing or it’s not going to end well. Prob have to bump down to a lower E content. Maybe E60…. Good low side though. IMO

not stock cam, btr stage 3 s/c cam with 32% fuel lobe. TSP Piston/rod combo, valves, lifters,springs, etc.
and tbh it probably sits at around e70-80. highly doubt its hardly ever hit true 85% ethanol

[Chrome383Z]

Originally Posted by BeauRichardson

not stock cam, btr stage 3 s/c cam with 32% fuel lobe. TSP Piston/rod combo, valves, lifters,springs, etc.
and tbh it probably sits at around e70-80. highly doubt its hardly ever hit true 85% ethanol

Yeah N/M I missed the cam. lol. I was like holy crap haha.

[BeauRichardson]

Originally Posted by Chrome383Z

Yeah N/M I missed the cam. lol. I was like holy crap haha.

i gotcha. yeah once upon a time when the first shop i went to put the procharger on the car all i had was the fore set up and they put like e50 in the car and tried to shoot for 8psi and said he couldn’t even make a pull. he had to drain the tank and tune it on 91 haha

[Kerry]

Originally Posted by BeauRichardson

Now this is some new information i haven’t heard. that is very interesting. So the settings i have on there now are the stock settings? or are you just saying in general. Did you find anything else going on with the tune?

I did not look real close at the tune but saw all that knock and looked at the sensor settings. also 7 ms on injector probly like King says its out of fuel unless its the knock sensors comanding a hold bunch of unneeded fuel trying to stop knock. But yea those are stock settings and mine are very different.


yes u need to log high side pressure because if its dropping you out of fuel system but the log you posted i dont see it being able to get that high on boost to run out of fuel. maybe. I would also log e %. induvial knock cylinder

Might need a different tuner.

With 60% e from what I have read on the form and my on experience you should be able to run near stock timing with 10 to 12 pds.

On the 1.8 engines I built we could run the same as stock timing on e with 30 pds.

[BeauRichardson]

next time i take the car out i’ll make sure i add those channels to log.
And i most definitely need a different tuner. The guy that i was using, come to find out he’s pretty much given everyone a shitty tune that i know of

[KingLT1]

LT4 fuel system isn't going to keep up @ .77 lambda @ E75+ @ 12+ psi. It's too rich and not enough fuel system.

Probably be mixing E60 @ .82 lambda for the fuel system to keep up.

I have tuned several of these cars now...so I have a idea in what these will tolerate.

Drop the e content to 60% and make sure you add the fuel pressures to your channels before next log.

[BeauRichardson]

Originally Posted by KingLT1

LT4 fuel system isn't going to keep up @ .77 lambda @ E75+ @ 12+ psi. It's too rich and not enough fuel system.

Probably be mixing E60 @ .82 lambda for the fuel system to keep up.

I have tuned several of these cars now...so I have a idea in what these will tolerate.

Drop the e content to 60% and make sure you add the fuel pressures to your channels before next log.

Okay, so get it to e60, and it should start acting a little better besides the fact that i also could have a bad tune, and make sure i’m logging the ethanol percent and fuel pressures. gotcha.

So what will help my fuel system aside from getting new injectors, big bore high side, etc?

It’s been rainy here so i’m not going to be able to log today, or at least make a log that’s really going to show it under high rpm, wot. Hopefully tomorrow evening it’ll be good but they’re predicting rain for the rest of the week into next week. I’ll be sure to post a log ASAP though. Turn on notifications for this thread so you can take a look at it if you don’t mind

[Joshinator99]

Originally Posted by BeauRichardson

Okay, so get it to e60, and it should start acting a little better besides the fact that i also could have a bad tune, and make sure i’m logging the ethanol percent and fuel pressures. gotcha.

So what will help my fuel system aside from getting new injectors, big bore high side, etc?

It’s been rainy here so i’m not going to be able to log today, or at least make a log that’s really going to show it under high rpm, wot. Hopefully tomorrow evening it’ll be good but they’re predicting rain for the rest of the week into next week. I’ll be sure to post a log ASAP though. Turn on notifications for this thread so you can take a look at it if you don’t mind

You will need to decide at some point if you want to either go big DI equipment or port injection. Just go to port now if you’re shooting for very big power (>1K WHP).

If you send me a PM with your email address I’ll send you a channel layout that will have the channels you need to datalog.

[KingLT1]

Originally Posted by BeauRichardson

Okay, so get it to e60, and it should start acting a little better besides the fact that i also could have a bad tune, and make sure i’m logging the ethanol percent and fuel pressures. gotcha.

So what will help my fuel system aside from getting new injectors, big bore high side, etc?

It’s been rainy here so i’m not going to be able to log today, or at least make a log that’s really going to show it under high rpm, wot. Hopefully tomorrow evening it’ll be good but they’re predicting rain for the rest of the week into next week. I’ll be sure to post a log ASAP though. Turn on notifications for this thread so you can take a look at it if you don’t mind

Pm me and I'll give my email.

[BeauRichardson]

Originally Posted by Joshinator99

You will need to decide at some point if you want to either go big DI equipment or port injection. Just go to port now if you’re shooting for very big power (>1K WHP).

If you send me a PM with your email address I’ll send you a channel layout that will have the channels you need to datalog.

Oh i'd definitely like to go greater than 1k. What will be the best way to go about going port injection? As far as a good setup, tuning system like holley or stick with hpt? etc