rising rev limits
 

Good day guys . How can I rise the rev limiter from 6500 to 7500 for my turbo 99 ?
I sow this thing in ebay.com

RL-1 Rev Limit Controller for Greddy E-manage Blue

The saler sayes that it can rise it but I dont know if it's work on my turbo 99

7500? Are you just asking for a blown motor or what?

Unless you have a built motor with rods, rod bolts and bearings....dont do that. Especially on a turbo you asking for trouble.....BLOW that thing sky high!!!

You need to add fuel past the factory fuel cut at 6500rpm. You can do this with the e-manage blue. You can find this info on this forum.

I have e manage blue . But I dont know how to do it with blue . If you post the threads URL you will help me a lot .
Thank you so much .

I have e manage blue . But I dont know how to do it with blue . If you post the threads URL you will help me a lot .
Thank you so much .,

Nah, the 3.0 can handle it, As long as its tuned properly
Of course HD valve springs and a 3.5 oil pump would be ideal.

The Ultimate can do it, but not smoothly.

Good luck with the rev limiter rising. I've seen a few dyno charts and the hickup at red line is pretty nasty.

My engine is built up probrley
I have rev up oil pump and JWT valve springs from a long time. But Im still searching for a way to rise up the RPM .

maybe run a jwt turbo ecu, but that would only redline at 7200. I don't really see why'd you'd want to rev a boosted maxima all the way out to 7500 but whatever lol.

you will only make useful power until 6800rpm on stock 3.0 cams. Even boost cant cover up the cam issues. just stay around 7000-7200rpm.

raising limiter sometimes means boom

This.....

Though you might have a different outcome with boost....

http://www.vqpower.com/v2/articles.php?article_id=26

^^^ Dandy Max's Emanage Ultimate install write-up.

It talks about raising rev-limits with modified injector delay maps.

hope it helps.

I forgot to say that I have JWT cams also . but my problem is the turbo . I have turbonatics . it spools at 4500 RPM . so my power is limited between 4500 RPM to 6800 as a stock cut of .

this is my dyno chart at 4psi

http://www.youtube.com/watch?v=M2-0uxU0uVE

http://i48.tinypic.com/ac691h.jpg



as you can see the HP is still going up until the cut of . so if I have my car tuned to 7300 or 7400 I will have the full advanteges of my turbo because it spools too late .so I will have more power . ;)

In that case you need to be a little bit more specific about your setup. Oil pump and headstuds would be my main concern. The oil pumps safe limit is understood to be 7200rpm after that you are going into the unknowns. I would do headstuds just to be safe if you are planing to rev. VQ35HR headstuds are stronger than stock 3.0 and cheap.

The VQ30 bottom end is stout, rod bolts do not have to be changed unlike the VQ35. We had somebody just for sh1ts and giggles revving to 8000rpm stock bottom end but i seriously would not recommend that.

If all this has already been addressed your best bet for a smooth raised limiter is a JWT ECU. An EU will do it but its not a very fluid way of raising the limiter. Dynos have shown a massive drop off in power right where the stock limiter is than it climbs back up, nobody has been able to solve that problem except switching ECUs.

Here is my full setup .
ARP studs
Z370 head gaskets
CP pistons
JWT cams and springs .
Turbonatics turbo .
Rev up oil pump .
Emange blue ( not yet installed ) .
SAFC II .
370 cc injectors .
550 cc injectors ( comming soon ) .

I think with this setup I can rise my RPM up to 7500 safely .
The last thing I would do is having JWT ECU . Because it will fit in my max . If I have to switch to JWT I have to get US maxima harness . And that is impossible to find it here in the middle east .

unless something has changed/been updated/been discovered in the last few years, you cannot go beyond the stock rev limit with emanage blue.

if i recall correctly this is because you cannot control pulse width directly with EB, only by percentage up to either 50% or 100% (it's been a long time since I looked into it, but this is what I remember.) At the stock rev limit fuel cut, IPW goes so low that increasing it even by 50% or 100% does not come anywhere close to providing enough fuel to have useful RPM above the stock limit.

Can you run a full standalone? Thats the best option if you can get around emissions and government restrictions.

EBs can, but o0o i wouldnt trust an EB to go 1000rpm over stock rev limit. Not a very good idea.

how do you increase the rev limiter on a 4th gen with the EB? what is the procedure/setting that allows this?

Its kinda ghetto process to raise it but with the 1.49 firmware people that want an extra 200-300rpm over stock do it, personally i wouldn't do it. i first saw this process on a subi forum im searching for it give me a few.

Edit: found it.

http://forums.nasioc.com/forums/show...7&postcount=67

ew yeah i don't like what I'm reading there. I wouldn't bother with that I don't think. just get an EU or standalone (especially on a built motor).

What if I convert my blue to gold ?

Will that good ? I have all the extra harnesses ( injectors ,ignition and map sensor ) .

Its just installing the 1.49 firmware, and seriously no, if you are thinking using an emanage blue/gold to raise the limiter, not a good idea, get an Emanage ultimate, you already spent all that money building the motor dont cheap out on tuning it.

OK thats for 4cylenders engine . how to do it on V6 engine ?

I spent more than 7 years, buying and rebuiding so I lost all my money on it .
so I cant buy the ultimate . I found a used one in ebay but I lost the piding .

Just keep searching you will find one. There is no real cheap&easy way to extend the limiter honestly. My car needs its limiter bumped up to 7000rpm and i have an emanage but oh i dont trust that thing to take over that process.

damn. I didn't find for 6 cylenders .

I will talk with my mechanic . I think he will find a way to do it .

is e85 available by where you at? is this a daily? maybe you should just put good gas in it and crank up the boost with the limiter as is. plenty power to be made without that added risk.