Wig92

ive noticed most bhr throttle body spacers is used with fi/nitrous cars

is their any use for these with an NA car? im new to throttle spacers, ive been reading about them and was just wondering about it specifically for 8's.
yes i searched, just trying to learn some more

thanks, wig

Flashwing

I've seem/read posts claiming spacers increase power by either changing the flow of the intake charge or somehow cooling the charge because of making the intake longer.

I don't really buy either claim.

I honestly feel it's more of a gimmick and not worth spending money on. Our spacer was designed as a means of delivery in a location that is functional with a part that can be removed if needed.

expo1

If they did anything of value Mazda would have put one on already. A piece of aluminum doesn't cost them much. Unless your using nitrous a TB spacer is a waste on money on this car. There are no such thing as cheap power mods for the RX-8

WTBRotary!

iTrader: (6)

^^^ Yup, hell I know ive spent alot of $ to get a few extra hp and I know others that have spent even more than I have for HP. Total $ spent to get a few extra ponies is like ~$1000 for my Racing Beat Rev8 exhaust and AEM CAI lol and for what? 7-8hp MAYBE.... jeeze on a piston engine that would be like 35-40HP...

paulmasoner

iTrader: (1)

or W/M

Wig92

ya thats what i was thinking. man its so bittersweet having a car factory tuned so well

thanks for your help guys

WTBRotary!

iTrader: (6)

I wouldnt say tuned is the word for it as id call it Squeezed....

Mazda literally squeezed everything they could out of the Renesis which is why it can hardly make much more hp than it already has... without having alot of $$$...

Porting doesnt give you too much hp as the intake port is ~40% bigger than the FD 13B engine, for the intake port you can pretty much just smooth it out, exhaust port is where you can port it... Hell if you bridge-port a FD 13B you can make some serious Hp as long as you have some good tuning... a Renesis???