newly turboed
#1
newly turboed
First post though I would wait untill I was turboed!!!
Had a coulple questions for the turbo experts before I get tuned on Friday
Just put the kit on last week. My Rx8 is a 05 6mt geddy kit, greddy rs bov, greddy boost guage, and agency power full exaust. Runs pretty good on the base map but a couple of small issues. I kno its tuned for stock exaust. I have only gone wot 3 times seems to surge or detonate so i back off right away. Power feels good though rips the tires loose. Part throttle is awsome but if i let off the gas with the rpms up the idle goes down to 500rpm and sometimes stalls. If i downshift and let the clutch out at 2,000 rpm its ok like stock. Turbo spools instantly very responsive. I originally had the bov pretty loose(could here it still going off after letting off the gas and intial woosh). I tightened it and fixed that but still has the stalling issue although seemed to help a little. How should the bov be adjusted. Should it just fluttering if in vaccum and whoosh when boosting. I adjusted it like that today about 4 mm tread showing above adjusting nut. Was at about 10mm almost all the way loose I think it may need to be looser. Im getting tuned on friday by a awsome tuner but i kinda want to get the bov adjustment somewhat close before it gets tuned. I also just ordered all ngk trailing spark plugs from mazsport.
Also for those on the fence about turboing your 8 I would its just out of control Im very pleased and I had a 500rwhp 03 cobra before my 8.
Any help is greatly appreciated.
Had a coulple questions for the turbo experts before I get tuned on Friday
Just put the kit on last week. My Rx8 is a 05 6mt geddy kit, greddy rs bov, greddy boost guage, and agency power full exaust. Runs pretty good on the base map but a couple of small issues. I kno its tuned for stock exaust. I have only gone wot 3 times seems to surge or detonate so i back off right away. Power feels good though rips the tires loose. Part throttle is awsome but if i let off the gas with the rpms up the idle goes down to 500rpm and sometimes stalls. If i downshift and let the clutch out at 2,000 rpm its ok like stock. Turbo spools instantly very responsive. I originally had the bov pretty loose(could here it still going off after letting off the gas and intial woosh). I tightened it and fixed that but still has the stalling issue although seemed to help a little. How should the bov be adjusted. Should it just fluttering if in vaccum and whoosh when boosting. I adjusted it like that today about 4 mm tread showing above adjusting nut. Was at about 10mm almost all the way loose I think it may need to be looser. Im getting tuned on friday by a awsome tuner but i kinda want to get the bov adjustment somewhat close before it gets tuned. I also just ordered all ngk trailing spark plugs from mazsport.
Also for those on the fence about turboing your 8 I would its just out of control Im very pleased and I had a 500rwhp 03 cobra before my 8.
Any help is greatly appreciated.
#2
#6
I think fix #2 for the the wastegate signal will solve my stalling problem. Could it be surging to the extent that when i go wot it causes my above mentioned concern kind of sounds like chu chu chu. I thought its cause i have exaust and race pipe so not enough fuel. Also anyone kno how to set the bov correctly?
#8
Im babying it. I only went wot to see what would happen probaly my exaust=not enought fuel. Before the kit I had a mil for cat effecency. No mil with the kit. I just need to set the bov; anyone?
#9
Maybe can try to remove the blow off valve and plug the hole up. Or, try to mod the fuel map for the blow off valve.
I can't find a blow off valve on the original list http://greddy.com/img/PHP/products/pdf/851.pdf
I hope your plug is still dry as normal.
I can't find a blow off valve on the original list http://greddy.com/img/PHP/products/pdf/851.pdf
I hope your plug is still dry as normal.
Last edited by csl; 02-19-2008 at 01:53 AM. Reason: add
#11
Metatron
iTrader: (1)
Couple of q's to check it's plumbed properly - the chu-chu sound could be compressor surge.
Where are you taking your vacuum signal for the BOV?
Where is the wastegate signal for the turbo coming from?
S
Where are you taking your vacuum signal for the BOV?
Where is the wastegate signal for the turbo coming from?
S
#12
wastegate to intake manifold nipple down by turbo
The emanage ultimate, bov, and boost guage sensor are all on the same vaccum line plumed to the vaccum fitting behind the throttle body
It runs great really smooth transfering into boost. I just dont wot cause the noise its either detonation or surge. Idle good, crusie and part throttle boost good. No crazy backfiring either. No check engine light
Cars healthly 18k miles. I cleaned the plugs but i ordered all ngk trailing for the tune.
Again thanks for the input.
The emanage ultimate, bov, and boost guage sensor are all on the same vaccum line plumed to the vaccum fitting behind the throttle body
It runs great really smooth transfering into boost. I just dont wot cause the noise its either detonation or surge. Idle good, crusie and part throttle boost good. No crazy backfiring either. No check engine light
Cars healthly 18k miles. I cleaned the plugs but i ordered all ngk trailing for the tune.
Again thanks for the input.
#13
Metatron
iTrader: (1)
Your wastegate signal may be the culprit - at the intake nipple it would virtually never open the wastegate. The signal needs to come from the compressor outlet, before the intercooler, so it will regulate the pressure there instead of on the other side of the closed throttle plate.
Your compressor is more than fully loaded, all the time, and surging. The chuff-chuff sound is a symptom.
Poor design by Greedy......
S
Your compressor is more than fully loaded, all the time, and surging. The chuff-chuff sound is a symptom.
Poor design by Greedy......
S
#19
幹他媽!
did u upgrade all the ancillary components to properly support the additional pressure the turbo's going to put on the engine? if not... u'll be getting a new engine in about 15k+ miles. from what i've read on this site, the renesis is a high compression engine already and not geared for the kinda pressure & strain the turbos going to add. so unless u go force induction correctly and upgrade all the components properly, you've basically installed a time bomb. more than a few guys on this board have joined the new engine club from the greddy. this is just what i've read.
#20
RX-8s Official Cool Guy
did u upgrade all the ancillary components to properly support the additional pressure the turbo's going to put on the engine? if not... u'll be getting a new engine in about 15k+ miles. from what i've read on this site, the renesis is a high compression engine already and not geared for the kinda pressure & strain the turbos going to add. so unless u go force induction correctly and upgrade all the components properly, you've basically installed a time bomb.
#22
RX-8s Official Cool Guy
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