Jakee's 4.0 SOHC Build up discussion and motivation thread

[Jakee]

I'm not scared to blow my motor. Just an excuse to get a built one.

 

[JDraper]

You are fine. Not much of anything is changed in the tune after installing a CAI or exhaust. The MAS is meant to monitor and account for airflow. Whether that is high or low it still will be accounted for by the MAS. Even with a CAI increased airflow will still be metered by the stock MAS. After installing CAI and exhaust it is usually more of a precautionary measure to check A/F than anything else. Don't be worried.

I don't at all agree that this is true across the board. On the Mach 1's, installing a CAI with a cat back sytem usually sends the car extremely lean without a tune...upwards of 15 in some cases. My car with the stock tune and a C&L CAI/Borla cat back combo was running at 15.4 at WOT above 3k rpms...not a good place to be. Without a custom tune, the vehicle cannot compensate enough for the increased flow through the motor (In a Mach 1). Some vehicles will be fine, others will not.

For anyone that has gotten a custom chip burned with the chip supplier knowing about the mods, there should be no problem at all.

Besides....the point I was trying to make is that any time you mod, you have to be mindful that the modification may cause adverse effects to occur. I didn't say he had a problem, I said it's good to check to see what the modification is done so you don't accidentally do something that might cause damage....

 

[spindlecone]

I'm not scared to blow my motor. Just an excuse to get a built one.

Than let us move along, **** or get off the pot Jakee
You been talkin bigtime, but you are doing nothing, just talk.
You have not a clue as to what you can do, nor how to do it.
If you think you can, than post results up, no more talk.

 

['97 V8]

18 pages and no dyno results yet?

 

[spindlecone]

[QUOTE='97 V8]18 pages and no dyno results yet?[/QUOTE]
you will never see any

 

[rocket 5979]

I don't at all agree that this is true across the board. On the Mach 1's, installing a CAI with a cat back sytem usually sends the car extremely lean without a tune...upwards of 15 in some cases. My car with the stock tune and a C&L CAI/Borla cat back combo was running at 15.4 at WOT above 3k rpms...not a good place to be. Without a custom tune, the vehicle cannot compensate enough for the increased flow through the motor (In a Mach 1). Some vehicles will be fine, others will not.

If the airflow is increased then as long as the MAS is able to handle the increased flow without pegging (not an issue with bolt-on Mach's) then it will be able to meter the increased air and account for it. Once the air is metered and load is figured it is a simple (relative term) process of the computer widening the PW on the injectors and if need be also increasing fuel pressure to the rails as well. A reading of 15.4 is not all the extreme when you take certain things into account. Most likely you still have your cats. Most likely you dont have an extra O2 bung welded into your exhaust pre-cat. Tailpipe sniffers usually show .5 leaner than pre-cat widebands do. So your actual A/F was probably more like 14.9:1 of possibly even a little richer (sniffer readings vary). Then factor in that in N/A stock-ish applications a lot of vehicles are tuned for fairly high A/F and you will see your car was not that terribly far off. Like I said, the CAI will increase airflow and also possibly increase density of air getting into engine due to being colder. Well the MAS and the IATS will be able to measure and compensate for that. Checking A/F after doing those mods is purely precautionary and meant more for systematic purpose rather than being truly fearful of something bad happening.

One other question... Was that C&L just the CAI itself of did it include any type of different MAS housing or MAS air meter? I know C&L more for making MAS housings and meters than making just the CAI's themselves.

For anyone that has gotten a custom chip burned with the chip supplier knowing about the mods, there should be no problem at all.

Besides....the point I was trying to make is that any time you mod, you have to be mindful that the modification may cause adverse effects to occur. I didn't say he had a problem, I said it's good to check to see what the modification is done so you don't accidentally do something that might cause damage....

Jeff, if you read my previous post you would have concluded that I didn't disagree with you when it came to being precautionary about doing things. By no means am I some sort of a performance modding cowboy throwing dollars and caution to the wind. I am just giving people better insight as to HOW mods truly affect their vehicles. Not many people, even those who own modded performance vehicles, know some of these things. In keeping with staying purely scientific and getting detailed before and after mod data on not only power but also A/F, and other datalogging PID's and DMR's, people should do follow up dyno's post mod, to ensure things are functioning normally and all was installed well.

 

[rocket 5979]

Than let us move along, **** or get off the pot Jakee
You been talkin bigtime, but you are doing nothing, just talk.
You have not a clue as to what you can do, nor how to do it.
If you think you can, than post results up, no more talk.

you will never see any

Jeeze Spindle, if I didn't know any better I would venture a guess at you appearing to be threatened by this guy; going off of your reactions.

 

[Jakee]

Spindle - I've proven you wrong more than once. Won't be nothing to do it again.

 

[Jakee]

You know, where is everyone elses dyno results? (Baseline and so on, not just the last one) For those of you that keep asking about the dyno, give me a tread that show's yours please.

 

[Jakee]

About the MAF. I've sinced changed back to the a stock diameter meter so I should be good there. I will be getting a C&L but I haven't decided what size yet. I'm balancing two things. Still doing the N/A goal plus thinking of the future (Supercharger)

 

[Jakee]

One more thing and I'll shut up about this...

Spindle - I found a post where you ran a 7.8 0-60 and seemed to be bragging about it. I hate to tell you this but I'm already running this time. And here's what I have left....


C&L MAF
Front section of exhaust
Electric fan
Pulleys
More, I won't say...
And then the tune.

I know I'm lighter than you but this should be good for something....

 

[Jakee]

Will a dyno chart help you when you're staring at someones tail lights?

 

[JDraper]

Rocket, I do have an 02 bung welded into my exhaust pre-cat converter, and that's where the readings are taken. I don't trust sniffers and never have. Every vehicle that I do dyno work on, I put a bung into. I run it on a Land-Sea dyno (Most of the time. Occasionally on a Dynojet) using a heated O2 sensor. The C&L CAI does come with a larger MAF housing, but retains the stock MAF sensor.

I'm not a rookie at this either...been doing it for 25+ years....Most of my experience is in carbureted/non computer controlled vehicles, but the basic principles are the same.

 

[JDraper]

You know, where is everyone elses dyno results? (Baseline and so on, not just the last one) For those of you that keep asking about the dyno, give me a tread that show's yours please.

I have no Explorer dyno sheets, but I do have a bunch for my Mach. Look at my photos in the Mach 1 Folder.

 

[Jakee]

Rocket, I do have an 02 bung welded into my exhaust pre-cat converter, and that's where the readings are taken. I don't trust sniffers and never have. Every vehicle that I do dyno work on, I put a bung into. I run it on a Land-Sea dyno (Most of the time. Occasionally on a Dynojet) using a heated O2 sensor. The C&L CAI does come with a larger MAF housing, but retains the stock MAF sensor.

I'm not a rookie at this either...been doing it for 25+ years....Most of my experience is in carbureted/non computer controlled vehicles, but the basic principles are the same.

Same here. The last project car I had was carburered. I was in the 12's with right around 3K. Even though that was almost 10 years ago, these people in here need to understand I'm not a bullcrapping rookie. I've tried saying it but okay I'll prove it with a sheet.

 

[aldive]

Will a dyno chart help you when you're staring at someones tail lights?

It will help you get to where he is looking at yours.

 

[Jakee]

They really need to manufacture a roll pan for a 2001 explorer sport. I want the hunky old bumber off the truck. I can either make one from fiberglass or get something really close and modify it. I've heard that one can modify an older explorer roll pan but...

 

[spindlecone]

anything new on the buildup?

 

[aldive]

Jakee, maybe I missed it with this plethora of posts, but have you posted an outline of your project ( including the order of the mods )?

Thanks ....

 

['97 V8]

Jakee, its great that you have big goals for yoyr explorer. But like all goals you plan to achieve you need focus. Focus on one thing at a time. If you dont, your never going to get anything done. Put your money on your engine, then move onto appearances etc. Im really looking forward to your dyno numbers by the way.

Mahdey