Anyone try out Rhoads lifters? They are a variable lift lash adjuster, based on RPM. Suppose to take away some duration and lift at lower RPM levels. What you think?
http://www.rhoadsproducts.com/
Anyone try out Rhoads lifters? They are a variable lift lash adjuster, based on RPM. Suppose to take away some duration and lift at lower RPM levels. What you think?
http://www.rhoadsproducts.com/
Used 'em in V8's a couple of times. They work alright if you've got a lumpy cam & want to tame it down a bit. They're noisy, almost like a solid lifter from the bleeding down they do at low rpm.
sounds like they would not be necessary with the stock cams, but perhaps with a more aggressive one then?
no I wouldn't run 'em on a stock cam.
Do they even make them for TD's? better money is using PT lifters and having Paul dial the lump out,
1989 FWD Turbo Caravan-2.5 TIII, GT35R, auto, a/c, cruise, pwr windows/locks, fully loaded with interior and ran with full exhaust. RETIRED FOR A FEW YEARS!12.57@104 :O)
1984 Chev Getaway van, 6.2 Diesel with a remote mounted turbo setup burning WMO-For sale.
2003 GSW 2.0L TDI, auto, fully loaded, modified, 360K-wife's.
2004 GSW TDI, 5 speed, fully loaded, modified.
Aurora ignition wires for sale. Link to info
Super60 roller cams or custom/billet cams. Link to info
Blasphemy! I've heard about enough of this "tune the lumpiness out"... leave it in, it's so much cooler!Originally Posted by turbovanman
Do they even make them for TD's? better money is using PT lifters and having Paul dial the lump out,
Aaron Miller
Hehehehee,Blasphemy! I've heard about enough of this "tune the lumpiness out"... leave it in, it's so much cooler!
Aaron Miller
1989 FWD Turbo Caravan-2.5 TIII, GT35R, auto, a/c, cruise, pwr windows/locks, fully loaded with interior and ran with full exhaust. RETIRED FOR A FEW YEARS!
1984 Chev Getaway van, 6.2 Diesel with a remote mounted turbo setup burning WMO-For sale.
2003 GSW 2.0L TDI, auto, fully loaded, modified, 360K-wife's.
2004 GSW TDI, 5 speed, fully loaded, modified.
Aurora ignition wires for sale. Link to info
Super60 roller cams or custom/billet cams. Link to info
I heard the 2.4L guys use them. I believe they sent the lifters in and Rhodes modified them.
AMEN! I like a racy idle! I really like it when my car surges up and down, kinda like a supercharged car can do.Blasphemy! I've heard about enough of this "tune the lumpiness out"... leave it in, it's so much cooler!
Aaron Miller
Back "in the day" a lumpy idle was cool.Blasphemy! I've heard about enough of this "tune the lumpiness out"... leave it in, it's so much cooler!
Now the "in" thing is tuning for a smooth idle.
Keeps the "sleeper" effect going.
If this wasn't my DD, I would love a rumpy idle. Unfortunatly, a rough idle gets old fast when you drive it everyday, especially an auto.
1989 FWD Turbo Caravan-2.5 TIII, GT35R, auto, a/c, cruise, pwr windows/locks, fully loaded with interior and ran with full exhaust. RETIRED FOR A FEW YEARS!
1984 Chev Getaway van, 6.2 Diesel with a remote mounted turbo setup burning WMO-For sale.
2003 GSW 2.0L TDI, auto, fully loaded, modified, 360K-wife's.
2004 GSW TDI, 5 speed, fully loaded, modified.
Aurora ignition wires for sale. Link to info
Super60 roller cams or custom/billet cams. Link to info
i don't buy it.
especially for the 8v.
even the super60 cams can be smoothed out with proper A/F and spark map tuning. it's not like our heads can even support ridiculous cams, and on a 2.2, i'd be worried about oiling impact in the rest of the system as well as removing all the extra oil from the topend, which can already be an issue. let alone it just won't work on in a non-adjustable valvetrain like the 8v, what happens when your lifter isn't pumping up? very hard starting, rocker arms flying off. valves not opening. horrible clacking at the best. on a turbo engine, you want as much exhaust mass flow as possible at low rpm to spool the turbo.
extra power down low? does an 8v need that? the real advantage theyre getting with the rhoades lifters is right there in the adjustment procedure. yeah they dont' pump up at low rpm, but they significantly change valvetrain geometry. though possibly for the worst. their test setup is sketchy, in that they report valve float at 6100 rpm benig fixed by a lifter. maybe, since valve float is an interaction of cam profiles but mainly vavletrain mass and spring resonance, i think similar results could be achieved with a slightly smaller cam. maybe one with less exhaust bias. or maybe even just less oil pressure and the stock lifters. the stock lifters were designed for 40psi of pressure, offcourse they'll be losing power, the valves wont' be fully closed or be damped by the lifter at high rpm when the oil pressure is highest. that's way to run a solid lifter in a hydraulic cam engine. tune the valve lash on that stock lifter properly and you'll have the same effects.
-jason
Good information there, thanks.
Aaron Miller
I know this is a old thread but it has some interesting info on the Rhoads lifters.
My 84 SC had them installed back in 86 when it was fitted with a nicely built 2.5 tall deck. The cars original owner told me the car has the 3rd or 4th set of Rhoads lifters ever built for the 2.2/2.5's. Does anyone else have a set of these in their 2.2/2.5? Was there only a handful made??
My complaint with them is the fact they are very noisy under a load until the car warms up/driven for about 1/2 mile. When cold the car lopes nicely...when warmed up it idles smooth and quiet. I know there is a purple MP cam in the car but I have yet to research which specific cam it is.
The engine was put in when the car had around 16k on it. Now the car shows just over 50k.
Had them in my omni for 10 years , went 11.04 with them in on a super 60 cam
took everything out for a Menagon big stick (roller)
not much noise but lopey when cold till the coolant temp kicked in
Posting Permissions
Reply With Quote
10's AGAIN '07, '08, '09 