ccc Posted July 9, 2019 Share Posted July 9, 2019 Hey I have a fuel injected L28 with a megasquirt ECU. I'm leaning towards a mild cam upgrade, OER ITBs, and headers/exhaust. My one question is if there is anything I am missing between doing both the CAM and ITBs. Are they going to be working against each other when it comes to performance? will it bog down in a certain RPM range? the CAM the ITBs Quote Link to comment Share on other sites More sharing options...
Ben280 Posted July 9, 2019 Share Posted July 9, 2019 It really comes down to the ECU and the tune you'll be running. I don't see why the cam and the ITB's will be at odds with each other, you might loose a little bit of low end with the 45mm bodies, but should be good to tune out. 100% you'll need a good tuner and a lot of logging to get these things running correctly. Should make for a rad engine! Quote Link to comment Share on other sites More sharing options...
JMortensen Posted July 10, 2019 Share Posted July 10, 2019 I would suggest you don't go mild on the cam. People tend to undercam L series. I had a .490/280 cam which I ran on a stock compression L28 with SU's and it was great. When I moved up to triple 44s I felt like I needed more cam. Then I went to a higher compression shortblock and I REALLY needed a bigger cam (wouldn't run on pump gas). Never got around to it and went V8 instead, but I was looking for something in the 300 to 310 duration range. Quote Link to comment Share on other sites More sharing options...
zredbaron Posted July 11, 2019 Share Posted July 11, 2019 I doubt anyone has ever regretted an aggressive cam. I sure haven't. Interesting that I sign on for the first time in too long and see Jon and Ben. Hello! LMAO Quote Link to comment Share on other sites More sharing options...
zredbaron Posted July 11, 2019 Share Posted July 11, 2019 Fat fingered the reply. There are a ton of variables that will play into bogging or regressive performance. If you open up one aspect of a breathing motor, another aspect will become restrictive. Each category of restriction has completely different behavior sets both in and outside the performance envelope. A manufacturer builds a balanced system but only until every other upgrade possible is equally or complementarily upgraded does the system behave like a fully capable and balanced system again. A lopsided system will perform in a lopsided manner, even if an upgrade is present, just like with suspension. The best answer to early inquiries usually sounds a lot like "how much performance do you want to spend?" Quote Link to comment Share on other sites More sharing options...
ccc Posted July 11, 2019 Author Share Posted July 11, 2019 Thanks for the feedback guys. Looks like ill be going with a bigger CAM. Quote Link to comment Share on other sites More sharing options...
Chickenman Posted July 28, 2019 Share Posted July 28, 2019 (edited) Steve Bonk is on FB page Church of L-Series. He normally has a few Don Potter cams for sale. Juts awesome cams if you don't know Don Potters history... Edited July 28, 2019 by Chickenman 1 Quote Link to comment Share on other sites More sharing options...
madkaw Posted July 28, 2019 Share Posted July 28, 2019 9 hours ago, Chickenman said: Steve Bonk is on FB page Church of L-Series. He normally has a few Don Potter cams for sale. Juts awesome cams if you don't know Don Potters history... Just installed mine . Numbers are good - especially P2V clearance for a 535 lift cam Quote Link to comment Share on other sites More sharing options...
ccc Posted July 30, 2019 Author Share Posted July 30, 2019 On 7/28/2019 at 5:16 AM, Chickenman said: Steve Bonk is on FB page Church of L-Series. He normally has a few Don Potter cams for sale. Juts awesome cams if you don't know Don Potters history... Good to know. I'm on there too and haven't pulled the trigger yet. Quote Link to comment Share on other sites More sharing options...
Tad240 Posted September 5, 2019 Share Posted September 5, 2019 On 7/28/2019 at 9:00 AM, madkaw said: Just installed mine . Numbers are good - especially P2V clearance for a 535 lift cam Any feedback on performance & drivability of the DLP vs your prior cam? I just recently purchased one from Steve Bonk but it’ll be a while before I install. What springs did you use? Did you install per the card or advanced? Would love to hear some feedback from someone running this cam. Quote Link to comment Share on other sites More sharing options...
madkaw Posted September 7, 2019 Share Posted September 7, 2019 On 9/4/2019 at 10:03 PM, Tad240 said: Any feedback on performance & drivability of the DLP vs your prior cam? I just recently purchased one from Steve Bonk but it’ll be a while before I install. What springs did you use? Did you install per the card or advanced? Would love to hear some feedback from someone running this cam. Getting ready to install next week Quote Link to comment Share on other sites More sharing options...
tioga Posted September 7, 2019 Share Posted September 7, 2019 I would recommend the jenvey over the oer t-bodies. The jenvey are extremely well made. Everything else looks chunky and crude after you have a set of the jenvey s. They also have a nice intake now too. With the turmoil over there right now the dollar is strong. I’m hoping after the brexit disaster next month to get a Revere carbon air box for a more reasonable price. Quote Link to comment Share on other sites More sharing options...
Tony D Posted September 9, 2019 Share Posted September 9, 2019 (edited) I'd go the opposite. The Jenvey's I've seen have issues with leaking throttle bypass screws, and somewhat flimsy flanges on the front face... SK's however have been a known commodity since 1983 when I helped install my first set along with their 'air governor' idle bypass setup and analog fuel controller. The OER's are an effective copy of those early SK's save for a few improvements. They are properly die-cast as well, just like the OEM Carb Bodies were. Plus, I think the SK's may have a tip on exchange rate at this point. Edited September 9, 2019 by Tony D Quote Link to comment Share on other sites More sharing options...
DuffyMahoney Posted September 11, 2019 Share Posted September 11, 2019 I own a set of Jenvy 45 ITBs and I wouldn't say there were well made at all. Pretty thin material, casting doesn't look that nice. Butterflies seem cheap. No cap on the shaft without the throttle arm. I didn't pick the OERs just because of how the fuel rail looks. I think it looks odd. Quote Link to comment Share on other sites More sharing options...
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