1/7/2024 0 Comments Transbrake th350But it's because of what you've just explained above^ (which I've also heard many other racers claim as well) that I'm beginning to wonder if the benefit of the better launches as you've stated, isn't really a result of the engine spooling-up better from the converter flash, but is rather a result of the suspension being allowed to remain at a more rested position, so that it can take the hit of the launch better and transfer the weight as intended, instead of being loaded-up BEFORE the launch. I only have experience with the footbrake method myself. Just trying to pick your brain a little.Ĭlick to expand. Not so with a footbrake launch when you're on the converter. When the car is launched with a T-brake, the suspension it at a resting state until the car begins to move. My point is, that is it an accurate conclusion for us to make that a footbraking launch would reduce the 60' time with your car, just because a full throttle transbrake launch does? Different things happen with the suspension with each type of those two launch techniques. I don't know which theory is accurate, but the two types of launches must be different, since with one, you're loading-up the suspension BEFORE the launch (footbraking) and with the other, the suspension doesn't get hit until during or AFTER the car is launched. But do you think that leaving at a higher RPM with transbrake launches can be compared to high RPM leaves with footbraking launches? Some say that it's more difficult to hook some skinny tire cars with a transbrake launch, while others say that it's easier. And tune your carb so it can respond without any hesitation.Every. Transbrake, find what your setup can handle. So basically if you footbrake, leave at idle or just above, depending on stall. But if you have 5500 stall then 2500 would still hit the tires pretty good.Hope that makes since. I feel that hitting the tires/rear suspension (shock loading) has more effect than actual rpm.What I mean is that if you have a 3500 stall converter and bring the rpm's up to 2500 you wouldn't hit the tires as hard as if you left at 1000 or 1500 rpm. I tried the two step at 4000 but it just blew the tires, thats where the rear suspension adjustements should help. Launch on two step at 3000 rpm, so still flashing the converter some,but shock loading the rear suspension, so far best 60ft is 1.55, still have some suspension adjustemens to do/try. I've went to a TH400 w/5500 stall and trans brake. You do need a carb that will respond and not hesitate or bog off then line. I used to run a TH350 w/3500 stall and would 60ft consintently 1.6?. It feels like it just rolls out of the beams and not jumps of plants the tires as well as a shock load. They dont seem to react as well if you load the suspension too much. Additional bushing area, close attention to bushing clearance, blueprinted pump assembly, select cores used, and other areas that our experience has shown other shops and builders are not paying attention to.I've found that Chevelles with the factory 4 link rear suspension like to have the shock loading from an idle launch, or trans brake. It has several key modifications that increase it’s strength. Stage 1 TH350 is reliable to over 500 HP/TQ. Providing a REBUILDABLE core will be a credit toward your build price. All TH350 builds now have a $450 core charge due to core shortages. All TH350 transmissions include a new pan. Our base model TH350 has lived at over 600 HP reliably.Īs with all Jake’s Performance transmissions they include all new friction clutches, bands, steel plates, soft parts, filter, modulator (if applicable), as well as hydraulic upgrades, and other modifications depending on power level. Our goal is to provide long term reliabilty. There are aftermarket planets available to make them live at even higher power levels but we usually recommend a TH400 for a dedicated 600+ HP application. The limiting factor is the stock planetaries. We feel they are a very good choice in cars up to 600 HP/TQ but capable of up to 800 HP/TQ especially in lighter cars. Deep into the 10’s without failure, they have proven to be a very tough unit for a reasonable price. We have an excellent track record with our TH350’s.
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