R34 Gtr Garrett -5 Turbo Lag, Need Advise

[Stixbnr32]

hey stix

im doing identical setup except im keeping stock cooler pipes for the "its bog stock" look. did you need to change to hard pipe or just wanted to for obvious reasons.

what boost did you use for that power on 98

Problem with stock cooler pipes is they pop off with high boost pressure. It was something we had to do. Its sitting at 1.6bar for 402kw max injectors. 1.4bar is what it is set for the street.

[Roy]

What actuators are your -5s running?

[mr skidz]

ahh bugger the old hose blow off situation . side effects off boosts, was that using stock bovs? or were they blocked off?

ill leave my under tray off and always carry a few tools just in case lol

[Stixbnr32]

Actuators are what they came with. Havnt had any problems. Think spring rate is 1bar.

Yeah stock BOV's but they are at their limit now apparently. So if I upgrade my injectors I think they will be required as well.

[Piggaz]

Stock BOV's are not at their limit and don't need to be touched. Spend the money elsewhere that actually improves the car.

[Stixbnr32]

well thats good to know. I like that.

[XGTRX]

Yeah stock BOV's but they are at their limit now apparently.

Who ever told you this?.......... Never talk to them again

[mr skidz]

i always had faith in oem gear its f*kn solid bit a kit

[Tyranus]

Forged bottom end and a after market oil pump would be a must for me if i wanted to make the most of -5's.. No point in having -5's if your not going to 8000rpm.

[mr skidz]

Forged bottom end and a after market oil pump would be a must for me if i wanted to make the most of -5's.. No point in having -5's if your not going to 8000rpm.

I've seen results from well sorted stock bottom ends with -5's making power without reving past 7500 so when 9's dont cut the mustard theres no other choice really except 5s and chase response.

[SimonR32]

Forged bottom end and a after market oil pump would be a must for me if i wanted to make the most of -5's.. No point in having -5's if your not going to 8000rpm.

Oil pump gears are ok but forged bottom end not needed

[mr skidz]

but in saying that my engine is getting built with Tomei pump and the other usual shit to make the most of the 5's like you said earlier

[r32-25t]

If your rebuilding the engine you may as well throw a stroker kit in there while your at it and really take advantage of the 5s

[GTR_JOEY]

This guy would be so confused right now.. Different opinions from everywhere lol

[r32-25t]

The problem is there are to many people who want to build an engine because it make 10kw more then factory, when its been proven the rb26 will take over 400kw at the wheels without being forged

[XGTRX]

If you want 10 more kws go to a different workshop, pay them a grand to work their magic and I guarantee your dyno sheet will show 10 more kws... he he he

[Missileman]

cost benefit analysis of changing to -5s on a RB30/26 than changing to -9s

Edited February 19, 2015 by Missileman

[infamous_t]

+160K stock engine with -5s + Poncam Bs making with no noticeable loss down low compared to previous 34R turbos + dialed stock cams, but big gains in mid/high end.

Upcoming E85 tune will bring even more fun times.

#YOLO

[mr skidz]

lol i accidentally quotd myself lol

but in saying that my engine is getting built with Tomei pump and the other usual shit to make the most of the 5's like you said earlier

undecided atm but is on the cards i do know if i go that route ill end up with -10s.

just wanna keep things simple n looking stock. last car i built n tuned myself was tidy as big power and cops f**ked me. so i bought a Ducati 1098s lets just say it turned me of cars altogether for years

Edited February 19, 2015 by mr skidz

[mr skidz]

This guy would be so confused right now.. Different opinions from everywhere lol

what guy lol Edited February 19, 2015 by mr skidz