it shows the '92 Diamante to have one version (202HP/199lb-ft) and another version (no power spec data) - different acceleration times and surprisingly the LS with no specs is quicker.
Aha! From the Diamante owners forum, I found a spec reference for the '92 DOHC 24v engine:
type: Aluminum head, iron block, V6
valve train: DOHC, four valves
displacement: 182 cu. inches / 2972 cc
bore and stroke: 3.59/2.99 in., 91.0/76.0 mm
compression ratio: 10.0:1
horse power: (SAE) 202 bhp @ 6000rpm
bhp/liter: 68.0
torque: 199 lb-ft @3000rpm
max rpm: 7000rpm
fuel injection: mitsubishi ECI-multi elect. port
req fuel: unleaded, 91 oct.
So, if the above non-spec'd version is the SOHC 12v, it may be that the SOHC 12v is quicker off the line with only 175HP, but the DOHC 24v is probably better up top - likely much better for a light, high-revving sports car with a M/T. Here's an interesting snip from the same forum:
The SOHC 12 valve Diamante engine produces 175 HP at the crank, the DOHC Diamante engine produces 200/202 HP at the crank. The 3000GT DOHC engine is the same exact engine, but is rated at 222/218 HP at the crank because of a more perfomance oriented computer, intake, and exhaust. But that rating was overrated by Mitsubishi, it actually makes around 210HP at the crank and puts down about 160-170whp(stock). This is conclusive of DTL VS dyno results comparison. If you want to keep the engine stock and produce about 25 more HP up top and don't care about low end, then you should swap to the DOHC engine. If you plan on seriously building the engine and putting some power through it, then build a SOHC, as I'm currently doing. I plan on 600HP at the wheels.
All these engines are 10:1 compression except for the TT engine which is stock 8:1 and the SOHC 3000GT engine which is 8.9:1 compression.
I agree with his suggestion wrt the SOHC engine - particularly for my purpose - but he doesn't mention the station wagon engine. It's looking like the 10:1 CR sedan engine has the cams I want.
Frank
