First runs on the 408 /T88 combo
12-23-2005, 01:31 PM
#1
First runs on the 408 /T88 combo Went to the dyno to mostly check the belt and made a few pulls.Tuning was just basic with 14 degree's in the torque range and 16 degree's up top.The dyno sheet is comparing the N/A to the lame 10l-11lbs of boost.The fuel injector's are already maxing out with 60lbs of fuel pressure. The Turbo isn't in the efficiency range yet as the difference of 8lbs to 10lbs was almost 100hp/100tq. The puill was done with a cold turbo so spool was slower than the other runs I did.Normally the turbo started to spool at 3000rpm and torque peaked at 4200rpm.
Someday I'll spend some more time on the roller's and really see what it can do
Someday I'll spend some more time on the roller's and really see what it can do
Last edited by Slowhawk; 12-02-2009 at 08:13 AM.
once the kinks are out and you can use the good range of the turbo it will be ridiclous . very impressive 
does that say 667hp 687tq ,10psi on that turbo isnt even efficient..isnt it like 16psi?
12-23-2005, 01:54 PM
#4
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You still have plenty of turbo left and still be on the map's island.
Here is the consumption chart for a 408. It is a conservative map though I built using a lower VE and 120 degree intake temps. IF you need an accurate map let me know....I should be able to show what you will map before you even roll it onto the dyno again...hehe.
408 consumption
JZ
Here is the consumption chart for a 408. It is a conservative map though I built using a lower VE and 120 degree intake temps. IF you need an accurate map let me know....I should be able to show what you will map before you even roll it onto the dyno again...hehe.
408 consumption
JZ
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12-23-2005, 03:32 PM
#10
if you turn the boost up will that have any affect on the spool time? like when you go to the higher levels more exaust will be allowed to reach the turbo before the wg steps in to release it. cant an eboost hold the gate shut and allow it to spool quicker. i dont know im just throwing some questions out that ive always had
12-23-2005, 04:10 PM
#11
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Originally Posted by KAOS
if you turn the boost up will that have any affect on the spool time? like when you go to the higher levels more exaust will be allowed to reach the turbo before the wg steps in to release it. cant an eboost hold the gate shut and allow it to spool quicker. i dont know im just throwing some questions out that ive always had
It will just take the additional time for it to reach higher boost, little time. The eboost can hold the gate till whatever pressure you set it too.
12-23-2005, 04:43 PM
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Originally Posted by smokinHawk
curious cause im going to start at about 12psi with my little 347 and 42lb injectors, and might need to reconsider
12-23-2005, 04:59 PM
#13
The HP is 667hp. I spent very little time tuning on the street.The dyno was to just make sure the belt would stay on.While there we messed with A/F and noticed the fuel pressure stayed at 60psi all the time indicating the pump was good so far.
I was tuning to uncorrected #'s which were around 700hp720tq or so.We are just happy the car runs again By just seeing a 100hp increase going 8psi to 10psi I'm sure this car will rip when we get 14psi on the street and possibly 18-20psi on race gas 
I was tuning to uncorrected #'s which were around 700hp720tq or so.We are just happy the car runs again
By just seeing a 100hp increase going 8psi to 10psi I'm sure this car will rip when we get 14psi on the street and possibly 18-20psi on race gas 
12-23-2005, 05:21 PM
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Originally Posted by KAOS
if you turn the boost up will that have any affect on the spool time? like when you go to the higher levels more exaust will be allowed to reach the turbo before the wg steps in to release it. cant an eboost hold the gate shut and allow it to spool quicker. i dont know im just throwing some questions out that ive always had
12-23-2005, 05:53 PM
#17
Forgot to mention that I didn't even open the cutout 
These were run through the single 3" exhaust.The cutout is in the 3.5" pipe
Also need to work on the oil system to the turbo.On decel there was smoke which seems like I might have to restrict the oil feed line since oil pressure goes to 70psi or so near redline.
These were run through the single 3" exhaust.The cutout is in the 3.5" pipe Also need to work on the oil system to the turbo.On decel there was smoke which seems like I might have to restrict the oil feed line since oil pressure goes to 70psi or so near redline.
12-23-2005, 06:02 PM
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yeah, it's OK i guess. lol, j/k. that thing's gonna be insane. I'm sure there's no way I could afford to have you build one for my 408 but a boy can dream, oh yes, a boy can dream.
