Ozark Hauler
New member
Hey folks ,
Hope all is going good . I finally got the new 351w installed in my 94' EB . Engine runs fantastic (now) . When it went in 2 months ago it had a strange problem . It was only firing on #'s 1/4/5/8. Turned out after a week of the dealership techs' scratchin' their **** raw and $550.00 in repair bills that the Pooter' was wet ,and there were several more Rat-Ate wires that I missed ! Cooked it's innards I guess .
Like I said it's a great engine . Oil pressure ,temp, etc. is flawless , I've got 2500-3000 miles on it and it doesn't skip a beat . But , It just lacks the power the old 351w had even with 163+k miles before it went "****' Up" . I've done nothing major to this engine other than a K-N air filter , the dealership set the timing @ 10*btdc and I've got the right T-stat in it .
The dealer told me it had a rebuilt engine it when I got it in 05' . It had everything still on it (pollution control) original exhaust and it pulled like a MULE , this 351W pull like a donkey .
Could the old 351w possibly been "cammed" ? My biggest gripe is passing and hills , and the mileage sucks !! I could go just over 200 miles to NE. St. Louis on 3/8ths of a tank .
Today we went down to Table Rock Lake near Branson, Mo. and back a total of 220 miles on 5/8ths. of a tank , there were a "pack load" of hills and curves that were great for a bike . The first 1/4 tank off of a ful tank used to get 100-120 miles and on a trip to OKC last fall I managed almost 370 miles (had about an 1/8th. tank left) before a fill-up . That truck went from Shawnnee, Ok. near OKC to Republic, Mo. just south of Springfield on 7/8th of a tank . pulling a 71' Buick Riviera through the Boston Mtns. in Arkansas on through the Ozarks and that was when it finally started having the engine problems . I've run that truck hard since the first week I got it in feb. 05'. We average about 1200-1500 miles a month (mostly highway ). I've replaced the bushings in the front end , new brakes and tires and the engine .
I have one theory on it's lower power - The engines larger cylinders with the original cam specs does not let the cylinders "fill up" due to the larger bore/increased volume/same lift/duration cam . So I figure a new cam and the exhaust should really wake up this slug .
I've read here recently that the EEC 4 does not like alot of changes . Any possible problems with my plans ?
I use the truck like it's a truck , low speed mid-high rpm. pulling (stumps, small trees,heavy loads-2000-4500rpm if needed) , Highway (a WHOLE lot of them ) I'm apt to run everywhere from 50-85mph . I cruise @ 70mph-75mph (70mph. is 2000rpm.) I'd like a cam (Comp Cams?) that starts coming in around 1800 rpm. The $550.00 was ear-marked for my exhaust so it still sports the "Corked" exhaust for awhile . I'll be getting a new system with one 3" Spun Ceramic High Flow Cat , and a Dynomax(Magnaflow) 2.25" dual out ( or,,,, a 2.5" single)because of those small exhaust ports I try keeping the exhaust size down keeping some back pressure for low rpm. torque .
Thanks ,
Steve
Hope all is going good . I finally got the new 351w installed in my 94' EB . Engine runs fantastic (now) . When it went in 2 months ago it had a strange problem . It was only firing on #'s 1/4/5/8. Turned out after a week of the dealership techs' scratchin' their **** raw and $550.00 in repair bills that the Pooter' was wet ,and there were several more Rat-Ate wires that I missed ! Cooked it's innards I guess .
Like I said it's a great engine . Oil pressure ,temp, etc. is flawless , I've got 2500-3000 miles on it and it doesn't skip a beat . But , It just lacks the power the old 351w had even with 163+k miles before it went "****' Up" . I've done nothing major to this engine other than a K-N air filter , the dealership set the timing @ 10*btdc and I've got the right T-stat in it .
The dealer told me it had a rebuilt engine it when I got it in 05' . It had everything still on it (pollution control) original exhaust and it pulled like a MULE , this 351W pull like a donkey .
Could the old 351w possibly been "cammed" ? My biggest gripe is passing and hills , and the mileage sucks !! I could go just over 200 miles to NE. St. Louis on 3/8ths of a tank .
Today we went down to Table Rock Lake near Branson, Mo. and back a total of 220 miles on 5/8ths. of a tank , there were a "pack load" of hills and curves that were great for a bike . The first 1/4 tank off of a ful tank used to get 100-120 miles and on a trip to OKC last fall I managed almost 370 miles (had about an 1/8th. tank left) before a fill-up . That truck went from Shawnnee, Ok. near OKC to Republic, Mo. just south of Springfield on 7/8th of a tank . pulling a 71' Buick Riviera through the Boston Mtns. in Arkansas on through the Ozarks and that was when it finally started having the engine problems . I've run that truck hard since the first week I got it in feb. 05'. We average about 1200-1500 miles a month (mostly highway ). I've replaced the bushings in the front end , new brakes and tires and the engine .
I have one theory on it's lower power - The engines larger cylinders with the original cam specs does not let the cylinders "fill up" due to the larger bore/increased volume/same lift/duration cam . So I figure a new cam and the exhaust should really wake up this slug .
I've read here recently that the EEC 4 does not like alot of changes . Any possible problems with my plans ?
I use the truck like it's a truck , low speed mid-high rpm. pulling (stumps, small trees,heavy loads-2000-4500rpm if needed) , Highway (a WHOLE lot of them ) I'm apt to run everywhere from 50-85mph . I cruise @ 70mph-75mph (70mph. is 2000rpm.) I'd like a cam (Comp Cams?) that starts coming in around 1800 rpm. The $550.00 was ear-marked for my exhaust so it still sports the "Corked" exhaust for awhile . I'll be getting a new system with one 3" Spun Ceramic High Flow Cat , and a Dynomax(Magnaflow) 2.25" dual out ( or,,,, a 2.5" single)because of those small exhaust ports I try keeping the exhaust size down keeping some back pressure for low rpm. torque .
Thanks ,
Steve
