first off, what are the differences (advantages/disads) and whatnot to a streetport, bridgeport, and raceported rotary? i think its kinda obvious, but i wanna know the exacts (diameters, adds compression, etc)

second, i have a 91 NA, when i looked the vin up it said it was a t2...it has the t2 hood so im guessing someone took the t2 out and swapped it for an NA. Someone told me i now have a 87 NA engine. How do i tell? How do i tell if i still have the t2 tranny or if they swapped that as well. While im at it, is there a way to tell the difference on the drivetrains to?

The reason i ask is because i plan to turbocharge this engine eventually, and i need to know what i have so i can plan on what needs to be "reinforced" or done to the engine to take a turbo....


thanks in advance...
-Craig

 

this is alot to ask, it really comes down to what you want, and all of these questions are covered in the SEARCH area. search around, read alot, and come back

 

umm im not really a know it all but, 87 engines have air pumps to open the 6port. uhhh i think the mop is different too, dont know how though. if i think of something else ill post. you should SEARCH THOUGH

 

Look at the trottle body. On the S4 there is a little rod that goes down to the Oil metering pump, its not there on an s5.

Are you sure that its an n/a? There would be ALOT of work to convert it to an NA from a Turbo. If someone was trying to save money by putting the NA in they would still have to spend a shitload to get the wireing right. As well as the ECU and lots of other stuff. It doesnt really make any sense.

 

I dont think its that hard to convert to NA, all you need is the NA engine harness, ecu and engine with accesories, its preaty much a plug and play thing....


gil