MackMan96 Posted September 12, 2006 Share Posted September 12, 2006 Can an turbo intercooler be added to a 1988 R Model(see attachment) Quote Link to comment https://www.bigmacktrucks.com/topic/1523-intercooler-for-r-model/ Share on other sites More sharing options...
GearheadGrrrl Posted September 12, 2006 Share Posted September 12, 2006 Can an turbo intercooler be added to a 1988 R Model(see attachment)That one may already have an intercooler. Quote Link to comment https://www.bigmacktrucks.com/topic/1523-intercooler-for-r-model/#findComment-7507 Share on other sites More sharing options...
Lmackattack Posted September 12, 2006 Share Posted September 12, 2006 that engine looks like an rebuilt early maxidyne... 237??? judgeing by the crossover pipe from the turbo to the intake (no intercooler or turbine charge cooler)The problem I see installing an intercooler on that truck is how the radiator is installed, most of the R models I have see with the IC had the radiator moved back a few inchecs to accept the thickness of the IC. This will effect the space allowed for the fan/belts etc... I think the IC cores are about 3 1/2 thick. if you have a spacer plate on the fan that can be removed to place the fan closer to the engine thats a good sign it may work?.however you will need to get diffrent pullys that are offset to accept a tighter fit?also if the truck has A/C or shutters that takes up even more fitment room. might have to sacrifice something?Trent Quote Link to comment https://www.bigmacktrucks.com/topic/1523-intercooler-for-r-model/#findComment-7508 Share on other sites More sharing options...
HK Trucking Posted September 12, 2006 Share Posted September 12, 2006 Can an turbo intercooler be added to a 1988 R Model(see attachment)You could find a tip turbine aftercooler setup from a 285 H.P. & it'll bolt right on there in place of the existing intake manifold, but you'll have to put on the 2 element air cleaner to supply it with cool air, also put a turbo from a 285 on it, and now that you've done all that, you might as well put an injection pump & injectors from a 285 on there also, cause all that cool air ain't gonna help much unless it gets more fuel too. Quote "If You Can't Shift It Smoothly, You Shouldn't Be Driving It" Link to comment https://www.bigmacktrucks.com/topic/1523-intercooler-for-r-model/#findComment-7509 Share on other sites More sharing options...
CML Service Posted September 12, 2006 Share Posted September 12, 2006 Something doesn't look right here. That looks like the small radiator from a R400 and the fan doesn't have a fan clutch. What is the history of this truck? Chuck Quote Link to comment https://www.bigmacktrucks.com/topic/1523-intercooler-for-r-model/#findComment-7512 Share on other sites More sharing options...
HK Trucking Posted September 13, 2006 Share Posted September 13, 2006 Hey Chuck, now that you brought that to my attention, it has the firewall to radiator support rods- I think they stopped using those previous to 88. The ones I've seen from that vintage have a rod from the top radiator tank extending diagonally down to the frame about halfway between the cab & radiator.Also, you're right about the radiator, that looks like the 700 sq in radiator like they used in earlier models with 673 & 711 non turbo motors.The factory radiator with a 675 -237 HP would be the 1000 sq. in with the cast aluminum top tank.From what I've seen on trucks I've worked on or driven, R models from about 73 on up should have the "viscous fan drive" as the parts department likes to refer to the fan clutch.I would still recommend the "modus operandi" of my earlier post if they really want to put an aftercooler on it.Herb Quote "If You Can't Shift It Smoothly, You Shouldn't Be Driving It" Link to comment https://www.bigmacktrucks.com/topic/1523-intercooler-for-r-model/#findComment-7513 Share on other sites More sharing options...
CML Service Posted September 13, 2006 Share Posted September 13, 2006 Herb, I agree with your thoughts on upgrade. Also you may be correct about the support rods. I seem to remember in 1988 some rads had cast tanks and some were frame mount for air to air intercooler and 4 valve engine. Gees it seems like yesterday these were the NEW trucks for the fleet I worked on!!! Chuck Quote Link to comment https://www.bigmacktrucks.com/topic/1523-intercooler-for-r-model/#findComment-7516 Share on other sites More sharing options...
Lmackattack Posted September 13, 2006 Share Posted September 13, 2006 the tip turbine set up would seam almost as simple of a project as moving everything for an frontmount IC. The turbo may need to be clocked diffrently but other than that pretty much would be all bolt on. If it converted the engine to a true 285. Would the HP rating max out the cooling capasity of the small rad.???Not shure when the rad support braces were changed but another thing I notice is that the air ride cabs(that I have seen) do not use the "X brace" that bolted to the cab. I had helped work on a mid 80s R that was built with a solid mount cab. We were converting it to an ride cab and removed the X brace. We bought the later style rad braces but they did not fit as the front shock absober mount was installed diffrently. we ended up making our own brackets. Quote Link to comment https://www.bigmacktrucks.com/topic/1523-intercooler-for-r-model/#findComment-7518 Share on other sites More sharing options...
Joe Cummings Posted September 13, 2006 Share Posted September 13, 2006 That engine looks like a 2 valve to me. Are you sure it's an 1988? Quote Link to comment https://www.bigmacktrucks.com/topic/1523-intercooler-for-r-model/#findComment-7525 Share on other sites More sharing options...
HK Trucking Posted September 13, 2006 Share Posted September 13, 2006 That engine looks like a 2 valve to me. Are you sure it's an 1988?It certainly is a 2 valve. Note the valve covers. It's an ENDT675 237 HP if I've ever seen one.The more I study that photo, the more that whole setup appears to be mid 70's vintage, or possibly something that was stuck together using parts from various year trucks. The motor has the spin on filters-72 or newer. That radiator support looks like ones I've seen on late 60's models. The engine has the cast aluminum intake manifolds- mid 70's or later. Dry type air cleaner- 73 or newer.I would also conclude it's not an 88. Quote "If You Can't Shift It Smoothly, You Shouldn't Be Driving It" Link to comment https://www.bigmacktrucks.com/topic/1523-intercooler-for-r-model/#findComment-7528 Share on other sites More sharing options...
MackMan96 Posted September 13, 2006 Author Share Posted September 13, 2006 It certainly is a 2 valve. Note the valve covers. It's an ENDT675 237 HP if I've ever seen one.The more I study that photo, the more that whole setup appears to be mid 70's vintage, or possibly something that was stuck together using parts from various year trucks. The motor has the spin on filters-72 or newer. That radiator support looks like ones I've seen on late 60's models. The engine has the cast aluminum intake manifolds- mid 70's or later. Dry type air cleaner- 73 or newer.I would also conclude it's not an 88.The truck was for sale on ebay as:1988 MACK 16 FOOT DUMP TRUCK TANDEM GOOD CONDITION (#250026540398) Information as list on eBay: Make: Mack Model: RD600K Year: 1988 Mileage: 82411 Transmission Speeds: Eaton Fuller 8LL (I think this is correct) Suspension Type: Camelback Vehicle Identification Number (VIN): 1M3P114K0JT004674 Tire Size: 22.5 Quote Link to comment https://www.bigmacktrucks.com/topic/1523-intercooler-for-r-model/#findComment-7536 Share on other sites More sharing options...
Lmackattack Posted September 13, 2006 Share Posted September 13, 2006 RD600K? is it possibly a glider kit??? that would explain the small 237 engine in a new frame. Quote Link to comment https://www.bigmacktrucks.com/topic/1523-intercooler-for-r-model/#findComment-7539 Share on other sites More sharing options...
terry Posted September 14, 2006 Share Posted September 14, 2006 That is what the K stands for, glider kit. Would explain the early engine in a 88 truck. terry Quote Link to comment https://www.bigmacktrucks.com/topic/1523-intercooler-for-r-model/#findComment-7544 Share on other sites More sharing options...
Lmackattack Posted September 14, 2006 Share Posted September 14, 2006 That is what the K stands for, glider kit. Would explain the early engine in a 88 truck. terryTerry, I thought "GK" was for gliders??? Quote Link to comment https://www.bigmacktrucks.com/topic/1523-intercooler-for-r-model/#findComment-7545 Share on other sites More sharing options...
terry Posted September 15, 2006 Share Posted September 15, 2006 Terry, I thought "GK" was for gliders???I am pretty sure the k stood for kit,maybe Mike H. will have an answer. Terry Quote Link to comment https://www.bigmacktrucks.com/topic/1523-intercooler-for-r-model/#findComment-7559 Share on other sites More sharing options...
HK Trucking Posted September 15, 2006 Share Posted September 15, 2006 An 8LL definitely wouldn't be factory installed behind a 237 Quote "If You Can't Shift It Smoothly, You Shouldn't Be Driving It" Link to comment https://www.bigmacktrucks.com/topic/1523-intercooler-for-r-model/#findComment-7562 Share on other sites More sharing options...
Superdog Posted September 15, 2006 Share Posted September 15, 2006 I am pretty sure the k stood for kit,maybe Mike H. will have an answer. Terry RD600K would definately mean it was a glider kit.Before the gov't made everyone switch to the 17 digit VIN which is a joke to decipher,the VIN would have been RD folowed by numbers.My '76 R model was a glider kit,and the VIN was R2901. Quote Link to comment https://www.bigmacktrucks.com/topic/1523-intercooler-for-r-model/#findComment-7565 Share on other sites More sharing options...
Joe Cummings Posted September 15, 2006 Share Posted September 15, 2006 You know I miss opening a hood and seeing that old 2 valve 237. It was probably the best engine ever made. And the easiest to work on. Quote Link to comment https://www.bigmacktrucks.com/topic/1523-intercooler-for-r-model/#findComment-7574 Share on other sites More sharing options...
Superdog Posted September 16, 2006 Share Posted September 16, 2006 You know I miss opening a hood and seeing that old 2 valve 237. It was probably the best engine ever made. And the easiest to work on.Amen Quote Link to comment https://www.bigmacktrucks.com/topic/1523-intercooler-for-r-model/#findComment-7577 Share on other sites More sharing options...
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