I've been building a 2414 race engine for my car and the old Kerry Hunter setup just wasn't going to cut it. I emailed Chris Foley and we began discussing what would be needed for my build and here it is. Turn around time was pretty fast for a custom exhaust, I ordered it a late last month. Since then I have ordered several other things from him such as his ITG air cleaner kit, his oil pressure relief assembly, a Mallory distributor, his cable throttle kit, and his new basic oil cooler kit. It has been an absolute pleasure dealing with him. Heres some pics for y'all to drool over.
Click to view attachment
Full Version: Lookie what I got in the mail today
Wow, exhaust porn!
Chris' stuff is always so nice...
Mike
Chris' stuff is always so nice...
Mike
Very , very nice!
Glad to see people still playing with the Type IV and "investing" money into them...!
Glad to see people still playing with the Type IV and "investing" money into them...!
Hmmm
I thought we'd be looking at the recent paternity results.
I thought we'd be looking at the recent paternity results.
QUOTE(porbmw @ Jan 22 2015, 06:32 PM) 
Hmmm
I thought we'd be looking at the recent paternity results.
You shut yer mouth.
Just curious about the stub setup. Do you fasten the stubs to the header for the initial fit to get everything aligned, fasten to the motor, and then after that, you only need to remove the header from the stubs to take the exhaust off?
In other words, I am assuming that the purpose of the stub pipes is to facilitate easy and frequent removal of the exhaust without disturbing the copper gaskets and fussy head studs. Is that assumption correct?
Oh, yeah, very sweet pipes!
In other words, I am assuming that the purpose of the stub pipes is to facilitate easy and frequent removal of the exhaust without disturbing the copper gaskets and fussy head studs. Is that assumption correct?
Oh, yeah, very sweet pipes!
Your building a what? 2400cc fire-breather?
We're going to need to see some proof of such a motor…..
Pics please?
Pics please?
QUOTE(bigkensteele @ Jan 22 2015, 07:49 PM)
Just curious about the stub setup. Do you fasten the stubs to the header for the initial fit to get everything aligned, fasten to the motor, and then after that, you only need to remove the header from the stubs to take the exhaust off?
In other words, I am assuming that the purpose of the stub pipes is to facilitate easy and frequent removal of the exhaust without disturbing the copper gaskets and fussy head studs. Is that assumption correct?
Oh, yeah, very sweet pipes!
Stubs go on first with the copper gaskets. Then the header bolts to the stubs. There is no gasket needed between the stubs and the header as it is a slip fit. The stubs have many benefits over just bolting directly to the heads. Yes you can remove the whole exhaust and leave the stubs in place without disturbing the copper or the head studs.
QUOTE(Jeff Bowlsby @ Jan 22 2015, 07:51 PM)
Your building a what? 2400cc fire-breather?
I'm building a 80x96 /4. Comes out to 2414cc. I'm shooting for at least 11-1 compression. It will run on race fuel. It is going to be dry sumped as well. I haven't really spared any expense.
QUOTE(Larmo63 @ Jan 22 2015, 08:04 PM)
We're going to need to see some proof of such a motor…..
Pics please?
When I start putting it all together I'll post em.
QUOTE(Mugs914 @ Jan 22 2015, 06:23 PM)
Wow, exhaust porn!
Chris' stuff is always so nice...
Mike
The stainless muffler and stub pipes is a nice touch. I've been impressed with everything I've ordered from him.
QUOTE(Mueller @ Jan 22 2015, 06:30 PM)
Very , very nice!
Glad to see people still playing with the Type IV and "investing" money into them...!
Funny thing is I have beautiful 2.7 six sitting in the garage that I could build but I am trying to keep the car light. Maybe in a few years I'll start on it. The car does really well with its current 2056 but it's never enough and that motor is flat worn out. Sure there's cheaper options but for now I want a wicked /4.
QUOTE(bigkensteele @ Jan 22 2015, 08:49 PM)
In other words, I am assuming that the purpose of the stub pipes is to facilitate easy and frequent removal of the exhaust without disturbing the copper gaskets and fussy head studs. Is that assumption correct?
Yes, that's part of the value of these stub pipes.
They're made with a taper that closely matches the actual port opening at the top and the primary tube at the bottom. Smoothing out the flow there facilitates the scavenge wave technology behind my header design.
If one wants to have the heads ported and flowed, installing the stubs first is much better than doing the work without them.
Sent out one of the stubs as soon as I got them today so my machinist can port match them. Once they're bolted on for final assembly I'll trim back the copper gaskets.
You have a tile floor in you garage?
QUOTE(Woody @ Jan 22 2015, 10:32 PM)
Sent out one of the stubs as soon as I got them today so my machinist can port match them. Once they're bolted on for final assembly I'll trim back the copper gaskets.
Make sure he has one of each. There is a subtle difference between the 1/4 vs 2/3 exhaust ports.
The difference isn't just the dimpling to clear certain pushrod tubes.
QUOTE(Woody @ Jan 22 2015, 06:34 PM)
QUOTE(Jeff Bowlsby @ Jan 22 2015, 07:51 PM)
Your building a what? 2400cc fire-breather?
I'm building a 80x96 /4. Comes out to 2414cc. I'm shooting for at least 11-1 compression. It will run on race fuel. It is going to be dry sumped as well. I haven't really spared any expense.
QUOTE(Larmo63 @ Jan 22 2015, 08:04 PM)
We're going to need to see some proof of such a motor…..
Pics please?
When I start putting it all together I'll post em.
I believe an 80x96 is a 2316cc motor.
QUOTE(bigkensteele @ Jan 22 2015, 05:49 PM)
Just curious about the stub setup. Do you fasten the stubs to the header for the initial fit to get everything aligned, fasten to the motor, and then after that, you only need to remove the header from the stubs to take the exhaust off?
In other words, I am assuming that the purpose of the stub pipes is to facilitate easy and frequent removal of the exhaust without disturbing the copper gaskets and fussy head studs. Is that assumption correct?
Oh, yeah, very sweet pipes!
Same concept with European racing headers.
I will be installing mine soon.
Click to view attachment
QUOTE(lonewolfe @ Jan 23 2015, 02:28 AM)
QUOTE(Woody @ Jan 22 2015, 06:34 PM)
QUOTE(Jeff Bowlsby @ Jan 22 2015, 07:51 PM)
Your building a what? 2400cc fire-breather?
I'm building a 80x96 /4. Comes out to 2414cc. I'm shooting for at least 11-1 compression. It will run on race fuel. It is going to be dry sumped as well. I haven't really spared any expense.
QUOTE(Larmo63 @ Jan 22 2015, 08:04 PM)
We're going to need to see some proof of such a motor…..
Pics please?
When I start putting it all together I'll post em.
I believe an 80x96 is a 2316cc motor.
I meant 80x98. My bad.
QUOTE(Rocky @ Jan 22 2015, 09:38 PM)
You have a tile floor in you garage?
I wish. Picture was taken at work.
Click to view attachment
QUOTE(Racer Chris @ Jan 22 2015, 10:34 PM)
QUOTE(Woody @ Jan 22 2015, 10:32 PM)
Sent out one of the stubs as soon as I got them today so my machinist can port match them. Once they're bolted on for final assembly I'll trim back the copper gaskets.
Make sure he has one of each. There is a subtle difference between the 1/4 vs 2/3 exhaust ports.
The difference isn't just the dimpling to clear certain pushrod tubes.
Oh wow. Okay I'll send the rest and inform him. Thanks.
Have you considered twin plug? Reported to be very beneficial for high compression/big bore engines
David
David
If you look closely at the exhaust ports on one head you can see the studs on the left (2 or 3) port are turned about 4 degrees relative to the port axis.
Also, the 1 & 4 Pushrod tubes are closer to the port, with the exhaust PR tube creating significant interference to a straight exhaust pipe. Therefore I dimple only the 1 & 4 stubs, just enough to eliminate the interference.
Flowbench tests showed that my carefully shaped dimples have no effect on port flow compared to a non-dimpled stub.
If a PR tube contacts the exhaust pipe the O-rings will fail to hold back the oil.
Also, the 1 & 4 Pushrod tubes are closer to the port, with the exhaust PR tube creating significant interference to a straight exhaust pipe. Therefore I dimple only the 1 & 4 stubs, just enough to eliminate the interference.
Flowbench tests showed that my carefully shaped dimples have no effect on port flow compared to a non-dimpled stub.
If a PR tube contacts the exhaust pipe the O-rings will fail to hold back the oil.
QUOTE(Harpo @ Jan 23 2015, 09:28 AM)
Have you considered twin plug? Reported to be very beneficial for high compression/big bore engines
David
96mm isn't really "big bore" though.
QUOTE(Racer Chris @ Jan 23 2015, 08:40 AM)
QUOTE(Harpo @ Jan 23 2015, 09:28 AM)
Have you considered twin plug? Reported to be very beneficial for high compression/big bore engines
David
96mm isn't really "big bore" though.
98 mm bore. I mis-spoke earlier. I thought about going twin plug but didn't really think it would be too beneficial under 100mm bore. High compression yes, but it'll be running on race fuel. Chris, as soon as I figure out how wide the engine will be I am going to place an order for your pushrod tubes. They look like a great solution.
Hey guys. I know I haven't been on much but the car has been up and running since February of this year. I ended up with 10.8-1 compression and can tell you this thing is an absolute blast. I really need to relearn how to drive the car. This past month I pulled the transmission back out and went through it while installing a Guard TBD and flipping third and fifth gears. With a fresh set of 10" autocross slicks it will spin them at the top of second gear. Here's a video from this past weekend.
https://www.youtube.com/watch?v=mrolZDxXKpA
And a video of my first event with the new engine.
https://www.youtube.com/watch?v=rBdm46j9xTU
https://www.youtube.com/watch?v=mrolZDxXKpA
And a video of my first event with the new engine.
https://www.youtube.com/watch?v=rBdm46j9xTU
WOW……That does look fun!
Bore and stroke?
QUOTE(Woody @ Jan 22 2015, 04:53 PM)
Lookie what I got in the mail today
Oh, instant Woody!
Where the Fuch you been? 
QUOTE(r_towle @ May 25 2016, 07:47 PM)
Bore and stroke?
80x98
QUOTE(SirAndy @ May 25 2016, 07:58 PM)
QUOTE(Woody @ Jan 22 2015, 04:53 PM)
Lookie what I got in the mail today
Oh, instant Woody!
QUOTE(carr914 @ May 25 2016, 08:01 PM)
Where the Fuch you been?
Woodies back! (All replies to the sandbox).
Paternity test results?
Show Cause hearing Summons?
Restraining Order?
Show Cause hearing Summons?
Restraining Order?
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