ENGN Builder Street RV Head
04-13-2011, 11:08 AM
#21
I am also running an LC polished intake, with their bore out throttle body, seems to be a nice little addtion with the head and cam. Yes its expensive, no its not for everyone, but to me it was worth the extra little bit!
You will be extremely happy with EB's stuff!
You will be extremely happy with EB's stuff!
04-13-2011, 05:04 PM
#22
Contributing Member
I have the big head and 268 cam and a new obx header , with my 35 x12.5' s I get 18ish mpg at 70 mph and can feel the cam kick in around 3500 all the way to redline very happy
04-13-2011, 06:33 PM
#23
Registered User
Im in the process of building my Silverado, once done will be digging into the Yota.
This is the basic build I am planning, EB head, cam, a form of header and rebuild injectors.
My problem is I cannot decide on which cam. People reply such different ideas when these cams kick in its hard to tell.
My truck is a 94 x cab,,, 31", stock gears. I do average driving in the 45mph to 75mph driving. From what I understand the 261crawler kicks in from idle and dies at 3k. The 268 has such a random comment of when it kicks in and dies out, I cant decide on the cam.
My truck sits at 3K RPM at highway speeds. I dont think i want the 261Crawler as it seems to die out at my highway speed.
This is the basic build I am planning, EB head, cam, a form of header and rebuild injectors.
My problem is I cannot decide on which cam. People reply such different ideas when these cams kick in its hard to tell.
My truck is a 94 x cab,,, 31", stock gears. I do average driving in the 45mph to 75mph driving. From what I understand the 261crawler kicks in from idle and dies at 3k. The 268 has such a random comment of when it kicks in and dies out, I cant decide on the cam.
My truck sits at 3K RPM at highway speeds. I dont think i want the 261Crawler as it seems to die out at my highway speed.
04-13-2011, 06:43 PM
#24
Todd at EB explained to me that the 268C cam kicks in at 1k and has a strong powerband all the way through 5k RPM's. He said it's a good all around cam if your geared low, since you'll be using a wide range of RPM's. The 261C crawler cam is more purpose built for bottom end grunt. Apparently the Street RV head/268C is the best for daily driven rigs.
04-13-2011, 06:58 PM
#25
Registered User
Todd at EB explained to me that the 268C cam kicks in at 1k and has a strong powerband all the way through 5k RPM's. He said it's a good all around cam if your geared low, since you'll be using a wide range of RPM's. The 261C crawler cam is more purpose built for bottom end grunt. Apparently the Street RV head/268C is the best for daily driven rigs.
It also has to do with other tuning and tire size,, but I feel safe with the 268.
Ive read some other posts that put the Compcam a little above the 268 but its twice the price...not sure the difference is worth the additional $
04-13-2011, 07:15 PM
#26
I agree about the gears and tire size. Todd also asked what gears and tires I was running, and I included that most of my driving is done in the mountains, so for me the 268C is supposed to be the best fit. I'll add my own, 'seat of the pants', experience in a couple weeks.
06-15-2011, 09:51 PM
#27
I just ordered one, Tod talked me into the 268 cam, I was just going to get OEM stock grind one, it got shipped out the day I ordered it, I called at 1:30pm eastern, called at 6:18 to order head bolts and he told me it had already went out UPS, head bolts going out Thursday...After I get it installed and engine going I'll come back and update on how the 268 RV cam is doing...
Update: 06/21/2011, I just got the EB head and it's to beautiful to put on an engine and get dirty and oiley ;}LOL
Update: 10/08/2011, Engine all done and up and running ;} Woo Hoo!!!! Shame nice new head getting dirty!!!! ;}LOL
Update: 06/21/2011, I just got the EB head and it's to beautiful to put on an engine and get dirty and oiley ;}LOL
Update: 10/08/2011, Engine all done and up and running ;} Woo Hoo!!!! Shame nice new head getting dirty!!!! ;}LOL
Last edited by john4wd; 10-07-2011 at 11:11 PM.
06-15-2011, 10:24 PM
#28
I've got about 1300 miles on mine since the engine build. So far, I love it. I can pull hills 10-15 MPH faster than before, and I'm still getting 20+ MPG. It doesn't seem to build any extra power after 4500 RPM's, which is perfect for me, since I don't plan to wind it up too much anyways. I haven't played with the timing at all, but I'd bet there's a little more power to be had with some minor tuning.
06-16-2011, 06:48 PM
#30
Registered User
Join Date: Jan 2011
Location: va
Posts: 353
Likes: 0
Received 0 Likes
on
0 Posts
No offense to EB but i have the putneys performance head and from what ive read the pretty close to each other with the lc pro torquer cam and it made the biggest diff out of all the stuff i have done. The header was second
10-06-2011, 01:28 PM
#33
No need to do this, Citrus... but it's advisable to have the injectors sent off to Witchhunter.com or another reputable injector cleaning/restorer company. They're quick with fix/return shipping and you'll DEFINITELY notice the difference in mileage/performance if they find yours are leaking/sticking/'poor' flow rate..... (If you're in the high miles arena-- anything over 150K might not be high miles for these motors...but injectors?-- then yeah, have em 'serviced'.)
10-07-2011, 02:41 PM
#36
I thought I'd add to this, since the motor is broken in now. I have about 4k miles on it, and it's running excellent. It pulls hard all the way to 5k RPM on the street. I rarely take it that high, however, since I don't really need to. I did hit about 5500 RPM's in 2nd gear, climbing a dune at Pismo a couple weeks ago, and had no issues whatsoever. I hit that dune again in 3rd, and it pulled much better. Before the rebuild, 3rd gear would be a good start to climb a big dune, but I'd always have to downshift. Now third gear pulls hard all the way up the dunes. I'm very happy with the way things turned out on my build.
Oh yeah, I got 20 MPG on the trip to Pismo, from Oakhurst. I was fully loaded with gear, and pulling the big hills like I had something to prove (just to see what it would do). I'm confident it would get 22 MPG or so, if I drove more conservatively. Not too bad, I think.
Oh yeah, I got 20 MPG on the trip to Pismo, from Oakhurst. I was fully loaded with gear, and pulling the big hills like I had something to prove (just to see what it would do). I'm confident it would get 22 MPG or so, if I drove more conservatively. Not too bad, I think.
10-07-2011, 10:23 PM
#38
Registered User
Join Date: Oct 2007
Location: Bozeman, MT
Posts: 134
Likes: 0
Received 0 Likes
on
0 Posts
...it's advisable to have the injectors sent off to Witchhunter.com or another reputable injector cleaning/restorer company. They're quick with fix/return shipping and you'll DEFINITELY notice the difference in mileage/performance if they find yours are leaking/sticking/'poor' flow rate.....
Sure enough, one of them is now spraying fuel all over the engine bay. Yay.
On their way to WitchHunter now...ah well, I guess I wanted an excuse to do that. And I got one. Be careful what you wish for.
On the bright side, in my short (and apparently hazardous) test drive, I did notice that the truck pulled better than ever before. Sounds happy, too - can't wait to get the rebuilt injectors popped in, fix my header leak (tried the stock gasket unsuccessfully, seems obvious in hindsight that egg-shaped gasket holes wouldn't play well with the round ports on the Thorley header - who knew?) and drive the wheels off this thing.
10-08-2011, 12:48 PM
#39
Registered User
Amen to that. I just got my truck back together after putting on my Street RV head, and while I was putting the injectors back in I thought to myself "damn, these look kinda shot in the rubber department. Maybe I should send 'em in...nah, I'll do that some other time."
Sure enough, one of them is now spraying fuel all over the engine bay. Yay.
On their way to WitchHunter now...ah well, I guess I wanted an excuse to do that. And I got one. Be careful what you wish for.
On the bright side, in my short (and apparently hazardous) test drive, I did notice that the truck pulled better than ever before. Sounds happy, too - can't wait to get the rebuilt injectors popped in, fix my header leak (tried the stock gasket unsuccessfully, seems obvious in hindsight that egg-shaped gasket holes wouldn't play well with the round ports on the Thorley header - who knew?) and drive the wheels off this thing.
Sure enough, one of them is now spraying fuel all over the engine bay. Yay.
On their way to WitchHunter now...ah well, I guess I wanted an excuse to do that. And I got one. Be careful what you wish for.
On the bright side, in my short (and apparently hazardous) test drive, I did notice that the truck pulled better than ever before. Sounds happy, too - can't wait to get the rebuilt injectors popped in, fix my header leak (tried the stock gasket unsuccessfully, seems obvious in hindsight that egg-shaped gasket holes wouldn't play well with the round ports on the Thorley header - who knew?) and drive the wheels off this thing.
10-08-2011, 03:45 PM
#40
Registered User
Join Date: Jan 2008
Posts: 135
Likes: 0
Received 0 Likes
on
0 Posts
Thats me! I got that head, the 261 cam, thorley tri y header with 2.25 pipe and magnaflow. The intake is going out to the pass. side of truck with a cone. I got 26 mpg as a 2wd but now with 33's and 4.10 gears, i still get 20 mpg. I should get better when i get some 4.88's in it! It does make a difference in power, but i also would HIGHLY recommend the supra AFM. It makes a world of difference down low!! But still aint no V8! HAHA
