Miata Mailing List: November 1996, Message #37
sponsored by



     



   From: marbill@iu.net (William E. Rich, Jr.)

Subject: Sebring Superchargers on the Dyno

   Date: Fri, 1 Nov 1996 13:09:09 -0500



Greetings and Salutations,



As stated in a previous message, I witnesses the Dynoing (The English

language is a growing thang!) a Stock 1.8L and a Sebringed 1.8L.  I wish I

had the charts I could fax to people, unfortunetly they are packed with the

rest of my household goods for the next eight months, On the Stock we got

99 HP and then when we adjusted the timing to 14 Deg BTDC we got 104 HP.

On the Sebring we got 139 HP as stated earlier.



Not to slam the credibility of anyone posting on the list, but I would like

to know what were the environmental conditions?  I was told that the

Dynojet Dyno we tested on converts to a Standard Pressure and Sea-Level

environment....does the Dyno that got 152 HP on a miata do that?  Did the

miata have polished intakes or any other special upgrades?  I am going to

upgrade to the Sebring when I finally get to a place I can call

home....hopefully that will be New Mexico in May....but an increase in of

13 HP with stock components...Wow.



Just be advised that the Stock Miata had no preformance increases and that

the supercharged had a Borla Exhaust and the Jackson Racing headers.  I am

fairly sure (95%) that Sebringized 1.8L had the MSD controller on board at

the time of testing.



For an increase like that something has to be different.  Our environmental

conditions were about 78 Deg F and a relative humidity of 50%.



My $0.02 on the issue.



Jim Rich

Miami Valley Miata Club, Florida Division

'94 BRG C eh?















\014

==============================================================================