The L1R's (GT 25 I think) is actual small for a 2.0L engine. When I say small I am not talking about the amount of HP they make. I mean in comparison to the amount of lag you get when jumping up to the GT30.
In the December issue of Turbo magazine they test a Pure GT 30 on their 4G63 Power Options (2.0L DSM turbo engine). A real Garrett GT30 will have much bigger housings and should lag more then the L2R hybrid turbo. This is with factory 1G short block (very low compression), race cams, and Venom sheet metal intake manifold. All of which should increase lag. From looking at the Dyno graphs the HP and Torque curves are just amazing. Looks like it has more power and torque then the stock 14B could ever hope to have at as little as 2000rpm, while making
[email protected] 19psi and over 400AWT! I am no expert, so I could be wrong. Just look at the artical yourself. They also said that the GT30 has no lag. This is from the artical, not from me. Basically there would be no benefit to do a L1R (GT25).
I am sure if this is all true the L1R was created for the people that absolutely fear lag and put to much into an actule RPM # (and will pay money because of these #'s). What I think it boils down to is when a turbo starts making boost, how much power it makes at those lower boost rpm levels while having the top end staying power. Just because a small turbo makes more boost at a lower rpm levels dose not mean it is making more power.