Somethings Not Right

[yaristurbo]

hi guys I've got a yaris running a 4e-fte lump with a motec, 2.5" straight through pipe, bigger induction filter and a front mount intercooler and just been mapped with 22 degree charge air temp, i recently raced another starlet with a different exhaust manifold and a upgrade on the air induction and it beat me quite well, the engine came out of a ep82, im just woundering is there a difference in power output from the two models as this was a ep91? or is it just due to the age of the engine, or has anyone got any ideas on maybe checks i can do that might possibly lead to discovering the fault, or should i have started running lower heat rating spark plugs by now????

cheers guys

[chriswoodfto]

prety sure the ep82 was quicker than a ep91. someone will tell you for definate but im not sure wether that was down to it being lighter etc or if it had more power.

[WallaceGlanza]

There's no power difference between the engines, both have 133bhp as standard. If the yaris is a good bit heavier it will obviously be slower? If you had it mapped was it not dyno'd, or was it just road mapped?

[Dean @RW-Developments]

ye it was because it was lighter the differences between the 2 was gt has thicker rods and the glanza has the ct9b turbo with 1 extra fin! you sure you havent got a boost leak? or he didnt have some cheeky mods

[Russleh]

yeh a yaris may be a small car but goin by todays cars id guess it still heavier than a gt

[Bourkey]

The Yaris, im guessing you mean the earlier models and not the very new shape, are around 400kg's heavier than the EP91 & EP82. Saftey and more accessories affect this massively with newer cars .

Bourkey

[garo]

I agree, i think its the weight thats holding you back! Start stripping out the rear seats, spare wheel and stuff!

[yaristurbo]

cheers guys yeah its the mk 2 yaris i think on a 1999 plate, anybody got any idea on the next stage on engine mods to take, think im gonna strip the interior to suit the car, heard alot about the mani fold being restrictive on some clyinders

[bucketep91]

yeah it has a nasty restrictor int he 3rd runner.upgrade your brakes, get a new mani, decat, get it boosting at 1bar. what has it been mapped on? piggyback?

[yaristurbo]

it got mapped on the road with a motec, what bhp should it be kicking out at 1 bar, its been decated already 2.5" straight through

[bucketep91]

the only way to find out is by taking it to a rolling road mate. dont run 1 bar witht he standard manifold!!!!!

[yaristurbo]

ok wont do mate, dont want to give my self any extra work lol, noticed today a bit of a misfire, any one running any different spark plugs to the standards?