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Haha thanks Jon, you should swing by with your YJ soon... Like sometime this wknd. Thanks for your support throughout this build Jon, if anyone understands I know it's you with your previous build projects. Tony says hi btw :wave:
I'd love too, but I'm working weekends until next month. There's a big jeep show hosted by FRJC at kc's cabin on may 14th I'm planning on being at if your interested.
 

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Discussion Starter · #702 ·
I'd love too, but I'm working weekends until next month. There's a big jeep show hosted by FRJC at kc's cabin on may 14th I'm planning on being at if your interested.
I added it to the calendar, I will get in touch prior and let you know for sure. Thanks for the heads up bro!
 

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good to hear that the job situation is good man ! happy to hear the stroker build is back and moving forward.

i can attest to the stress's a intense builds brings, the passion turns into obsession that never leaves your thoughts lol.

looking foward to more updates.

stratton.
 

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Discussion Starter · #704 ·
good to hear that the job situation is good man ! happy to hear the stroker build is back and moving forward.

i can attest to the stress's a intense builds brings, the passion turns into obsession that never leaves your thoughts lol.

looking foward to more updates.

stratton.
Speaking the truth! And I know it doesn't appear to be the case, but this is my first engine rebuild, so there have been countless hours of research that have gone into planning, parts, modifications, ect... So, obsessive is putting it lightly lol.

One thing is for sure, the more I've learned, the more this stroker build has gone from budget to top dollar build. From extensive cylinder head porting / polishing / modifying, to a collection of top quality components, not to forget the highest quality machine shop services. It was very frustrating losing my source of income for over half the year and having to watch dust collect on everything. Heartbreaking is a good term that sums it up.

So needless to say, I'm glad to be back in action :duhrock:
 

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Discussion Starter · #705 ·
For those that are interested, I'm going to post a list of tools I used to perform the cylinder head work, so you can avoid the use of air tools and larger 1/4th sized aggressive carbides. I also started working on the intake manifold, slightly porting the intake runners which are MUCH easier to work on compared to the iron head. I'm not even using carbides since the cartridge sand rolls do the job nicely. I will post pics of the progress once I finish up the runner I'm working on. The intake manifold should be fully ported in the next week or so.

Now I just need to find a shop that I can schedule a flow bench test after the cylinder head machining work is done. I will have to pull the "before" flow values from online to compare to see if my work made any positive gains in air flow.

The cylinder head machine work will include the following...

- enlarge the intake and exhast value seats to accommodate the oversized valves
- install new flame-harded exhaust valve seats
- 3 angle valve job for both intake and exhaust seats
- ream and install brass valve guides
- mill the head surface to be square and reduce the combustion chamber volumes
- open lifter bores so I can access lifters without having to remove and reinstall the head
- hot tank and clean the head

I'm hoping to have the final machine shop funds available in the next few weeks, hopefully.
 

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Discussion Starter · #707 ·
Any updates?
I'm basically waiting on the machine shop at this point. I spoke to Tony at speed performance and he is currently backed up, but hoping to get my work started in the next week or so. Once I have everything back from the shop, then it's go time and there will be a surplus of badass progress updates and pics lol.

I honestly don't mind the wait, considering that I've had to be patient while I was between jobs... Otherwise I'm usually impatient over these types of situations lol.

The good news is that most of the parts are already purchased and awaiting install, minus the camshaft, roller rockers, and chrome moly push rods. So things will be in motion hopefully soon.
 

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Induction

I'm basically waiting on the machine shop at this point. I spoke to Tony at speed performance and he is currently backed up, but hoping to get my work started in the next week or so. Once I have everything back from the shop, then it's go time and there will be a surplus of badass progress updates and pics lol.

I honestly don't mind the wait, considering that I've had to be patient while I was between jobs... Otherwise I'm usually impatient over these types of situations lol.

The good news is that most of the parts are already purchased and awaiting install, minus the camshaft, roller rockers, and chrome moly push rods. So things will be in motion hopefully soon.
Can I ask what are you going to do for induction? It sounds like a pretty radical stoker you're building. I find it hard to believe that the stock fuel injection will be able to keep up. Thanks for all the posts I have really enjoyed reading these.

R
 

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Discussion Starter · #709 ·
Can I ask what are you going to do for induction? It sounds like a pretty radical stoker you're building. I find it hard to believe that the stock fuel injection will be able to keep up. Thanks for all the posts I have really enjoyed reading these.

R
Thanks for the nice words! This has definitely turned into quite a crazy stroker build lol. I currently have an Eaton m90 supercharger I was planning on installing after the stroker was built and broken in, but now I'm leaning more towards naturally aspirated w/ nitrous and meth injection. I haven't talked much about this yet since my main focus is getting the damn stroker back together, but there will be many discussions about power adders soon to come.

As for fuel management, believe it or not but the stock fuel pump, fuel lines, and rail are more than adequate for handling the increased flow. As for the fuel injectors, I already have a set of oversized injectors to handle the increase in fuel requirements. Here's my prior post regarding the fuel injectors...

After some researching and analyzing fuel injector flow data, I've decided to purchase the bosch 784 4 hole injectors that should be about 24.5 lbs per hour on the later model 49psi fuel rail. I figured this would be the better short term route when the engine is back together to get me on the road instead of buying injectors to work with the supercharger and have them tuned down to work with the N/A setup prior to the s/c install.
 

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like ive said in the past, leave it n/a. it will be plenty, simplicity is king on and off the road. run some 93oct and call it a day. sell the supercharger and recoup some money.

theres nothing like having a responsive naturally aspirated motor that can take a beating and keep on winning.

keep us updated buddy !

hows the new job going ?

stratton.
 

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Discussion Starter · #711 ·
like ive said in the past, leave it n/a. it will be plenty, simplicity is king on and off the road. run some 93oct and call it a day. sell the supercharger and recoup some money.

theres nothing like having a responsive naturally aspirated motor that can take a beating and keep on winning.

keep us updated buddy !

hows the new job going ?

stratton.
HA! I knew you would be happy with that post! I'm still not completely sure about the supercharger plans, but one thing is for sure that I will definitely be running naturally aspirated for quite a while after it's built. There's something about running high compression (10:1) with an increased redline and nitrous that sounds quite attractive to my ears lol.

My plan all along was to build a stroker that ran at optimum capacity, and introduce power adders after the fact. However, at this point I'm completely focused on getting this stroker back together and running strong so I can enjoy driving the jeep again, and consider a simplified power adder option (such as nitrous) that won't completely change the n/a setup.

The forged bottom end combined with the modified head and high quality top end components will allow me to safely run high compression, increased redline (6,000 possibly), and nitrous without a single worry. I'm sure that setup will be plenty of power for my stripped down, lightweight jeep :)

As for the job, I couldn't be happier! Absolutely love working from home, and I finally feel self sufficient and confident. I can see myself being with this company for many years! Thanks for asking my friend :)

I will begin to post more frequently in the upcoming weeks as progress begins.
 

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Just curious what you had compared the OBX header to. I just got mine today and I'm a little disappointed with what I got. Looks like TIG welds on only the outside, the collector flange on the inside sticks out into the flow a lot, but most importantly the thing weighs next to nothing. The runners seem like they have very thin walls to me. Maybe it's because I'm comparing it the manifold I had on my Skyline (also a straight 6) but it seems kinda flimsy and hastily thrown together to me. Trying to decide if it's worth it to try and clean it up with a grinder on the inside then have it coated and install it or not.
 

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I talked to Brad about a year ago, last news was he was having a kid. I have a feeling that put an end to any jeep plans. I usually run into once a summer or so, so I'll try and remember to make him come back with an update.
 
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