PakmanMP5

1. Is Hiboost turbo kit for protege 5....good on stock intervals and is it efficient...on the engine?
2. If you have this turbo is it a big increase in power?
3 what do I need to make the turbo work on the engine.....
help would be greatly appreciated.....

Roddimus Prime

Most aftermarket turbo kits are designed for use on stock internals. There is MUCH more power to be made with forged internals though...more than double.

The HiBoost turbo kit is a great buy for the money...especially when you consider you are getting a $1,000 haltech computer included in the $3600price of the kit.

If you were to buy any turbo kit I would suggest a slightly colder spark plug (one heat range colder than stock--autoparts store will know what you mean), a new fuel filter, and premium gas at ALL times. Everything else should be included.

juddz

That slightly colder plug would be a NGK heat rating #6.

Roddimus Prime

tah-dah! part number?

Toady

Personally I would go for Iridium plugs gapped at 1.0mm... but thats me

Roddimus Prime

iridium plugs have a needle thin electrode that holds heat in too much. Personally I use standard old cheap copper plugs. Copper dissipates heat faster and is so cheap you can change them every 3K miles and not hurt the wallet.

The condition of the spark plug is 100 X's more important than the kind of spark plug.

Toady

Now thats interesting... I guess I need to do some playing when my kit arrives huh... (IF WHEN, WHEN IF Grrrrrr)

juddz

2.0L (Protege5), Normally Aspirated:
Nickel Alloy: NGK BKR5E-11
Single Platinum: NGK BKR5EGP
Single Iridium: NGK BKR5EIX-11
Premium Platinum: PFR5G-11 (double Platinum Type)
Premium Iridium: IFR5E-11 (Iridium center electrode, platinum pad on ground electrode)


2.0L, (Mazdaspeed) Turbocharged:
Nickel Alloy: NGK ZFR6F-11
Single Platinum: NGK ZFR6FGP
Single Iridium: NGK ZFR6FIX-11
Premium Platinum: NGK PZFR6F-11 (double Platinum Type)
Premium Iridium: NGK IZFR6F-11 (Iridium center electrode, platinum pad on ground electrode)

You will note that there are other differences in the part number between the Mazdaspeed turbo and N/A 2.0L. This is because, for some reason, a longer center electrode projection was requested for the Mazdaspeed engine (5mm as opposed to 3mm). If the pistons and combustion chamber geometry are the same between the TC and 2.0L NA, you could probably use the parts noted for the Mazdaspeed engine with your own turbo kit. Erring on the side of caution, I would use the following:

2.0L (Protege5), aftermarket turbo and stock combustion chamber, stock piston, & stock compression ratio:
Nickel Alloy: NGK BKR6E
Single Platinum: NGK BKR6EGP
Single Iridium: NGK BKR6EIX
Premium Platinum: N/A (double Platinum Type)
Premium Iridium: N/A (Iridium center electrode, platinum pad on ground electrode)

Don't worry about heat retention of fine iridium center electrodes. Some of the best racing cars in the world use them, as do a lot of highly tweaked sports bikes, and you can get much improved ignitability, cold starting performance, and a reduction in the amount of voltage required to make a spark. Just don't try to gap a fine wire plug - you run the risk of bending the relatively fragile center wire.

macdaddyslomo

good job Juddz...if we did reputation points on hee you would definitely get some for that

Roddimus Prime

yeah, A+ in my book.


anyone have any experience with Bosch Silvers?? Ken from P-garage swore by them on his turbop5.