On Dyna Dynamics rolling road made over 380bhp, boost figures dropped and igntion backed off for saftey still gave 375bhp at no more than 1.5 boost.

I agree with what it should do and before switching to Injen tuned inlet and APS 3 1/2" exhaust only gave 345 - 350 bhp.

Im running Walbro fuel pump (does anybody run anything else at this level of tune??)

Is that a no on the APS sr44 turbo then ??

Thanks Jase

Sorry to ask so many questions, just dont want to buy wrong turbo for what i want and if i dont need injectors lot of money saved.

As Paul stated, now that you've put some miles into it the ECU may have pulled it back to a safer level of tune, if you still got the same figures if you just turned up at WRC and ran it I'd be surprised.

I tend to use the Delta Dash road dyno function as it provides good repeatable results and is a solid base for comparing differences, perhaps find someone local to you with a copy to try.

Makes my VF35 seem pitiful with just 333 :(

BTW j900ase, did WRC do the mod work/tuning and sell you the parts?

F

It would be good to see the car run on a different set of DD rollers, just for a comparison.

I'm not suggesting WRC do this ...but... I know of at least 2 other tuners that map the car for a big number on the rollers, then back off the timing and fueling to 'keep it safe' So all you actually get is a number that the car could achieve if tuned to the edge of blowing up, not what it's actually running.

Hence my suggestion above, just for clarification ;)

Andy

No i did all work WRC mapped.

Andy thanks for advise, prob be getting one of your 18g from Zen with fuel mods and hopefully Paul will remap too if price right.

(Praying that midrange will come back with no surge, and near 400bhp!!)

Jase.

An 18g the same as Andy sells, not from Andy :p

You mean similar to the 18G Andy sells. My turbo's are individually tweeked to suit the application, based on my experience with each model.

Andy

agree with andy f
 

Agree with you on the fact that rolling road tuners give you the fiqure higher than the fiqure you actually end up with. The bhp claims are getting to be a joke, Guys like you must just laugh at them. Trouble is the people that believe them must be taking some of your business away from you,

Conflict of interest?
 

Glaringly obvious that one imho, explains the glumness of faces at "away" RR days.
"yeah but I made X bhp at X RR" lol

I think that statement maybe somewhat sweeping from my experience. Especially since I got some even higher figures on another Rolling Road from that of the establishment that actually did the work! :D

I can't see the point in doctoring figures myself and should anybody do that then thats a steel rod for ones back, but I FULLY concur that RR figures are not the be all and end all. In a controlled environment (or as controlled as possible - now here is the hard part) were repeatable results can be gained through various levels of modifications, then they are conducive (as a before and after indication).

Regards,
Shaun.

Was that at Power Engineering or Well Lane for the second run Shaun ;)

back on track ;)

Whats the most boost anyone has run an 18g at with a classic sti?

I agree with all people about what can happen at rolling roads, but i have been to wrc at three differant times and figures all about what i would expect.

1st time ECUtek map (not done by them), about 320bhp than i fitted Injen cai WRC remap 334bhp and a massive jump ai midrange torque.:)
(This is when i got the bug for more power because it was so good to drive)

2nd time I fitted APS front mount myself (not from WRC from G Force) WRC map 343bhp more top end, but loss low down due to surge.:(

3rd time I fitted 3 1/2" APS race exhuast to try and improve/reduce back pressure on turbo exit 375bhp and some of my torque back, and for longer.

No one was more suprised then Chris at WRC at this figure, whats more it was on and of the dyno at least three times due to EVO mag being there doing petrol tests. Every time it got to mid 370bhp sometimes more.

I must point out though the temp outside was about 3 c.

My point is if i did all work and bought nothing of WRC what would be the point of giving me false figures.

Any how just spoke to Paul at Zen, subject to rolling road availabilty on Tuesday we will all find out.........

good thread

hey paul ;)
andy ;)

my uk my00 vf34,decat,etc etc etc is running around 340 bhp
i've been considering a td05 for sometime now
but still not sure which 1 to go for 18 or 20
i do attend alot of meets, quarter miles,track days,rolling road days
the track i go round mostly is short and twisty, 80 mph maximum
even with the vf34 i'm in 1st on 2 or 3 of the bends
i'd imagine the 05 would be a bit more laggier than the vf34 but with alot more gains in power ?????????
i am 1 of those that like good figures on RR days and am prepared to sacrifice a BIT of lag to get it
even though i only have a 2.0 would i be better with the 18 or 20g ?

sorry to hijack :)

daz

ps,still on TEK3 by BRD . thinking of going Link though

Jase will no doubt post the results, it was a long day, but the results were pretty damn good.

Paul

I would go with the 18g for a daily driven car. Some porting on the exhaust housing will help the top end.

Thats an excellent result. You must have constant grin across your face when driving your car. I totally agree with you about Paul's work and attention to detail in all aspects of his work. Very highly recommended.

Nice work
 

Sounds a fantastic job, Where does he do the rolling road test, Spoken to him at santa pod once was very helpfull, your car must be very quick now, must be well worth the money, well done paul

Jase,

Sounds like you are pleased..... good on ya! :)

Regards,
Shaun.

Dyno sheet
 

Nice result and nice wedge of torque, you must be very pleased :D

F

Torque? look at the power! Huge!