JeepLab Prodigy Install LIVE

[AGOM]

anyone installed the Turbo stage 2 on an automatic trans 2012+ jk ?
any pics or instructions on whats going on with the trans cooler and intercooler?

[NOLAjeeper]

anyone installed the Turbo stage 2 on an automatic trans 2012+ jk ?
any pics or instructions on whats going on with the trans cooler and intercooler?

i have an automatic, a shop did my install and it was a challenge for them to get the intercooler and transmission cooler to fit and to function. I posted some pics of the final install some threads back.. look for them on here and let me know if you need more pics. Hope the install goes well.. Keep us updated!

[UselessPickles]

BTW - I finally found a straight answer to "how much boost?": https://www.prodigyperformance.com/3...ler-turbo-kit/

According to that page, stage 1 produces 6.8 psi and stage 2 produces 8.2 psi.

There's some confusion about the waste gate spring ratings, because they are rated for a certain amount of boost with an assumption of a 1:1 relationship between exhaust pressure and boost pressure. The waste gate is a simple mechanical valve that involves the exhaust pressure trying to crack the valve open, while both the spring AND the boost pressure fight to keep the valve closed. Different combinations of turbo turbine and compressor housings and wheels result in different amounts of "leverage" that the exhaust has on the turbo against the intake air pressure, so different turbo systems on different vehicles can all have different relationships between exhaust pressure and the resulting boost pressure. To over-simplify it, the turbo is almost like a set of gears through which the exhaust "drives" the intake pressure, and different turbo setups have different "gear ratios".

So TiAL's wastegate springs are rated for how much boost they will allow, assuming a 1:1 exhaust:boost pressure ratio, with a note that a +/-2 psi difference in actual boost pressure is not uncommon.



Stage 1 includes the red spring, rated for 0.4 bar (5.8 psi), but Prodigy states 6.8 psi in the page above, and calls it a 7 psi system (small amount of rounding; fair enough).

Stage 2 includes the white spring, rated for 0.5 bar (7.25 psi), but Prodigy states 8.2 psi and calls it a 9 psi system (that's quite a bit of rounding; I think 8 psi would be more fair).

So this means the Prodigy turbo has *less* than 1:1 exhaust:boost pressure ratio (more boost from less exhaust pressure), and produces more than the spring's rated boost. Looks like the pattern is that we could assume that the Prodigy turbo system will make about 1 psi more boost than the waste gate spring's rating.

I was seeing 8 psi with stage 1, so I must have had something wrong with my install (perhaps a small leak in the connection of the boost sensing line to the waste gate?). This explains why stage 2 didn't really feel obviously more powerful than stage 1 to me, because I was getting extra power from stage 1 that I shouldn't have had

I'm seeing about 8.0-8.1 psi max with stage 2, so I'm much closer to "normal" now. I'm either within a normal amount of small variation of boost pressure, or I have a tiny boost leak somewhere bleeding off 0.1-0.2 psi.