thelostartof
New Member
- Joined
- Mar 13, 2010
Ok so to start off I have a 1991 740Turbo Volvo with a 200R4 behind it. It was built by a local in AZ who at this time I remember little to nothing about it as it came out of a running GN about 2 years ago when I purchased it. The trans has a 3000rpm stall non lockup from Road Runner Converters here in AZ along with it has a Manual trans brake. So far all has been perfect, The engine is a 2.3L 4cyl that was making around 350whp with the old transmission, my goal is around 450whp so I am sure this trans should do just fine.
A few basic questions - When putting an Engine with a 200R4 on the dyno are there any tips or tricks to get it to dyno correctly? I ask because on my old transmission You have to remove the kickdown cable and pull it out right before the kickdown spot and use a pair of vise grips to hold the cable in place without kicking down. Is there something similar to do for the 200R4?
Next is how much power can a typical Built transmission hold in 4th gear? I ask because on my old transmission there is only a single clutch and steel for 4th as it is an OD only gear. I had killed 4th a few times by loading it up to much in that gear. I ask because on highway driving very light throttle will make boost and I do not want to make to much power in 4th if there is a major risk to damaging it, I can either set boost lower or just make it a point to downshift to gain speed.
Trans cooler wise I have a large Tube and Fin cooler with a large fan that is always on. Should this be enough to keep the trans cool or would I be better off going to a B&M Cooler with the built in fan and thermostat. The car will be daily driven and see 40-50 Passes a year at the strip. With my current setup I think I cooked my last trans from hot lapping and the cooler not being able to deal with the heat. If I take a bit more of a break vs making a pass and heading right back to the front of the line I should be fine. Either way I am thinking a Trans Temp Gauge should be next on my list. If so what is the warning Temp for these trans to not let it get over? The Trans already has a deep aluminum pan so the extra fluid should help.
What is the Max RPM most people feel safe rev'ing these transmissions to? My engine currently has a 7100rpm limiter that at the track I like to use as I do make power all the way up to 7000pm. Once I have a fresh engine and head I do not plan on reving much over that as this is still a 70's tractor motor design.
Thank You very much for your time. As I can think of more questions I have on this trans I will make sure to ask.
A few basic questions - When putting an Engine with a 200R4 on the dyno are there any tips or tricks to get it to dyno correctly? I ask because on my old transmission You have to remove the kickdown cable and pull it out right before the kickdown spot and use a pair of vise grips to hold the cable in place without kicking down. Is there something similar to do for the 200R4?
Next is how much power can a typical Built transmission hold in 4th gear? I ask because on my old transmission there is only a single clutch and steel for 4th as it is an OD only gear. I had killed 4th a few times by loading it up to much in that gear. I ask because on highway driving very light throttle will make boost and I do not want to make to much power in 4th if there is a major risk to damaging it, I can either set boost lower or just make it a point to downshift to gain speed.
Trans cooler wise I have a large Tube and Fin cooler with a large fan that is always on. Should this be enough to keep the trans cool or would I be better off going to a B&M Cooler with the built in fan and thermostat. The car will be daily driven and see 40-50 Passes a year at the strip. With my current setup I think I cooked my last trans from hot lapping and the cooler not being able to deal with the heat. If I take a bit more of a break vs making a pass and heading right back to the front of the line I should be fine. Either way I am thinking a Trans Temp Gauge should be next on my list. If so what is the warning Temp for these trans to not let it get over? The Trans already has a deep aluminum pan so the extra fluid should help.
What is the Max RPM most people feel safe rev'ing these transmissions to? My engine currently has a 7100rpm limiter that at the track I like to use as I do make power all the way up to 7000pm. Once I have a fresh engine and head I do not plan on reving much over that as this is still a 70's tractor motor design.
Thank You very much for your time. As I can think of more questions I have on this trans I will make sure to ask.
