RE: Bang for the Buck Gen 1 Mods..
http://www.angelfire.com/extreme4/wannaplaypcola/tech/tstat_test
This page supports both sides of the argument.
They went from a 195 to a 180 thermostat and DID have a measureable difference as seen on the Dyno.
BUT..they also say that running a 160 thermostat didn't provide the desired/expected results, but they didn't post any Dyno graphs to show for an example.
Going from the 195 to the 180 netted them 2HP for a 15 degree drop.
Keeping in mind that the % of gain depends on the % of input.
On a 90-100HP engine 2% gain is only going to give 2 or so HP.
but when you have 300HP, 2% becomes substantial.
http://www.angelfire.com/extreme4/wannaplaypcola/tech/tstat_test
This page supports both sides of the argument.
They went from a 195 to a 180 thermostat and DID have a measureable difference as seen on the Dyno.
BUT..they also say that running a 160 thermostat didn't provide the desired/expected results, but they didn't post any Dyno graphs to show for an example.
Going from the 195 to the 180 netted them 2HP for a 15 degree drop.
Keeping in mind that the % of gain depends on the % of input.
On a 90-100HP engine 2% gain is only going to give 2 or so HP.
but when you have 300HP, 2% becomes substantial.