|
Post by the88bird on Jun 17, 2019 1:13:58 GMT -5
I was wondering if a ranger roller would benefit me enough at all or if I should just save for a BoPort. What kind of HP gains would I see with a RR if any? Also what kind of HP gains would I see with a BoPort 1.9? The head is completely stock 160,000 miles. I really just want to see what I can get out of it without tearing it apart at all.
88 Thunderbird Top mount header Walbro 255 PimpX 3in exhaust FMIC HY35 ~22psi Gutted upper and lower intakes 80lb injectors Spec 2+ clutch
|
|
|
Post by Stinger on Jun 17, 2019 15:45:28 GMT -5
RR gains a little tq, loses a little hp compared to a stock turbo cam (in good condition).
1.9 would gain probably 20-30hp, though I like the 1.5 better for a street car (or the 2.1 or 2.5 even better than either one).
|
|
|
Post by tutulate on Jun 18, 2019 8:33:42 GMT -5
Dave Flanders on TurboFord is one who showed what a RR cam can do. Check out his thread....http://forum.turboford.org/ubb/ultimatebb.php?ubb=get_topic;f=3;t=033687#000015. Given that you're running a high-mile stock head, your slider cam is probably worn. The RR is very cheap to obtain( I got mine at Pick-N-Pull with the followers for less than $50). In my case, a 1986 SVO daily driver, the difference was noticeable. I then had Delta Cams regrind the RR to their BP-7 specs(increase in lift to .444 at the valve), and that was even better! With Comp Cams 990s shimmed to 127# seat pressure, it pulls to over 6000 RPM! That said, I found a used BoPort 1.5 cheap and have installed it. I haven't completed my tuning yet, so I have no performance reference. The 2.1 and 2.5 both will require machine work on the head, AFAIK.
|
|
|
Post by Stinger on Jun 18, 2019 12:34:26 GMT -5
Yes, with race fuel and 30psi in a race car Pinto (low weight) it will run impressive numbers. That doesn't change the fact that Dave's setup would have made a lot more power with a good performance cam, and would have ran very similarly with a good condition stock cam. 116mph in a 2300 pound car isn't really that much power, especially when it's running a ton of boost.
|
|
|
Post by tutulate on Jun 18, 2019 12:51:54 GMT -5
I understand that, Shannon, and was not trying to misrepresent his setup. For that I apologize. I was just trying to point out that given the OP's parameters( drop-in/no head rework) the RR can work, and has in my DD. The 2-stage cams don't meet his parameters, right?
I should have stayed out of this...sorry.
|
|
|
Post by Stinger on Jun 18, 2019 21:48:17 GMT -5
No problem, just making sure people aren't confusing a stock truck cam for a performance cam. The ONLY thing about the RR that is "performance" oriented is that it's a roller. Otherwise it's just a truck cam.
Correct, the stage 2 stuff isn't drop in. My mention of them was just saying that I like the 1.5 better than the 1.9 but really the 2's are better than any of the 1's because they aren't lift limited like the stage 1 stuff has to be to be drop in.
|
|