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Methanol kit for t-28 with supra smic

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mtwollet

15+ Year Contributor
180
2
Aug 7, 2004
hey everyone, got a question, last year i dyno'd at avg 288 whp, at 17psi. Since then I've upgraded stock clutch to act 2100 and want to add a meth kit, I had a peak result at one point at 294 whp, and was wondering.

1. at about 18-19 psi I currently running about 11.3-11.5 afr on wideband
timing is probably pulled some, I cannot adjust timing.
2. By installing meth injection, would that get me maybe to 300whp, with running about 18psi on a t-28 , with upgraded clutch, and tune the meth afr to about 11.5

I do realize the t-28 is a small turbo and that i've just about maxed everything out, my objective is to fully maximize what I have on the car, Im hoping w/ meth injection to producemore power by having a cooler IAC and decrease knock.

would this be worth my while or is it a big hassle?

Thanks
 
Think 350 w.h.p., though its gonna be on alot more boost than 18 psi. No idea about the meth.
 
At 18psi, you can still usually get fairly aggressive with the tune, so there's probably not huge gains to be seen with meth (though, yes there will be gains). You'll see better gains when you've basically maxed out your tune on pump gas or are having to be very conservative with the tune, because of the boost your trying to run.

The difference from 18 to 20psi as far as being harder on your motor is minimal (if the tune is good). I'd set your boost to atleast 20psi & have some fun with the meth, 300 whp shouldn't be a problem with a good tune.
 
Only reason to run meth is to up the boost. Got an article somewhere stating a 33* intake temp drop while activating the meth injection. Curious to see how it works out.
 
Good job. You'll be addicted to meth. And that's not a bad thing. I would start running your boost in the 20-25ish range. As long as you have a logger and are watching your timing. Also, it doesn't show that you have a wideband in your profile. I would get a wideband before you start tuning the meth because it messes with your AFR depending on the amount of methonol in your mixture.
 
Oops Sorry about that , I have a LM-1 w/ RPM Converter installed also w/ a T16-003 interface for palmnstein that I need to probably get out of my glovebox,
As far as AFR is at the moment, I glanced through it today leavinng my house and from about 3300 rpm to 6700 rpm its starts about 11.1 to 11.6 and maybe just a tad rich @ 10.9ish around 5k and from about 6200 to 6300 rpm it showed 12.5 for about 100 rpms, ???hu, it could have been anything, :)

but anyway I richened it up 2% at that area just to take care or any issues for the moment, there are no dangerous issues I can see, average comes to about probably 11.3, and what I will do is maybe make another pull tommorow and see how it is, more than likely there are no problems, but i'll probably wait until Meth is on until I lean anything out.

I am currently running a Supra SMIC and Hope to bring readings from now on to a more "constant, stable level", and when this appear to be stable I'll look into putting the boost at 20 psi . I mostly wanting to have a bit more stability with AFR after doing this.

Thank Everyone.

Mike
 
Good job. You'll be addicted to meth. And that's not a bad thing. I would start running your boost in the 20-25ish range. As long as you have a logger and are watching your timing. Also, it doesn't show that you have a wideband in your profile. I would get a wideband before you start tuning the meth because it messes with your AFR depending on the amount of methonol in your mixture.

20-25 psi sounds like it might be to much for 156k engine on stock headstuds etc IMO
 
question, I got the kit today , and has anyone instaled the kit in the trunk and if so did they still need to get the upgrade solenoid they suggest.
 
just a thought since alot of installs are trunk mounted could'nt I just mount the reservoir on my side console passengers side , and the motor on the firewall , saving the issue of a upgrade solenoid needed?
 
just a thought since alot of installs are trunk mounted could'nt I just mount the reservoir on my side console passengers side , and the motor on the firewall , saving the issue of a upgrade solenoid needed?

I wouldn't think you would need to upgrade your solenoid. I am running a 150psi pump with a 3.9pgh jet and everything is trunk mounted.
 
cool, thx for the info, would it be advisable to up the psi on the pump maybe to 170 ,, or just go with the flow,, so to say :)
 
also quick q's once its istalled should I still tune w/ the wideband to around 11.1 - 11.3 ,, ?

I was under the impression from some initial reading that meth w/ gasoline could be a differnt afr to need to tune to ??? correct me if im wrong ,, which i probably am :)
 
What meth kit do you go with? Meth will be my next mod.

Went with the snow Preformance kit,,

for nfo so you dont make the inital mistake i almost did, if youre doing any more than 15 psi, you'll have to get the stage 2 pump like me...
 
get closer to 12's. you really just need to watch for knock tho...

Thx so much,,, all ive managed to get hooked up today is a mounting the pump and reservoir .. ohh well slowly but surley,,, my back can'nt do any more drilling in the trunk :D
 
Good job. You'll be addicted to meth. And that's not a bad thing. I would start running your boost in the 20-25ish range. As long as you have a logger and are watching your timing. Also, it doesn't show that you have a wideband in your profile. I would get a wideband before you start tuning the meth because it messes with your AFR depending on the amount of methonol in your mixture.

yea i love my meth kit, i get to run 27psi almost 20* timing advance

i run a Labonte kit, the pump is at 200psi and i run a 14gph jet
 
also quick q's once its istalled should I still tune w/ the wideband to around 11.1 - 11.3 ,, ?

I was under the impression from some initial reading that meth w/ gasoline could be a differnt afr to need to tune to ??? correct me if im wrong ,, which i probably am :)

I would recommend tuning without the meth. This way if anything fails your safe. This method has worked great for me so far.
 
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