20v itb techno toy adapter 16v

[gramacosport]

Any experience installing this set up on the 16v
My set up 12,5 Cr wiseco, 304 cams , old e6k tps reference, injectors yellow toyota 290 cc
Engine power dives after 6,500
Any idea
Thanks


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[davew7]

Need more info, what have you already checked. Did you verify that you have enough throttle cable travel?
DaveW

[gramacosport]

Need more info, what have you already checked. Did you verify that you have enough throttle cable travel?
DaveW

Dave
I will have to check several items and that its one of them
I am running a very old e6k , tps reference,
304 cams, 12,5 Cr, afr last run was 11,7
I sent the injectors to clean( i bought thise ones in ebay yellow color , supposedly 290 cc, plead correct me)
Soo yes , I will have a check on that


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[tottacrolla]

11.7 AFR is too rich and that amount of extra fuel will make a difference to the power.
Aim for something around 12.8 at full throttle.

[davew7]

As mentioned the A/F ratio, but my guess is cam timing. I would verify BOTH cams. With 304* cams you should be just be coming up on the power band at 6,500 RPM. Either borrow or invest in a dial indicator and a degree wheel. [cam(s) probably advanced] After adjusting the cams, re-set timing. Davew7

[gramacosport]

11.7 AFR is too rich and that amount of extra fuel will make a difference to the power.
Aim for something around 12.8 at full throttle.

Yes, I will change the injectors, are too big



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[gramacosport]

As mentioned the A/F ratio, but my guess is cam timing. I would verify BOTH cams. With 304* cams you should be just be coming up on the power band at 6,500 RPM. Either borrow or invest in a dial indicator and a degree wheel. [cam(s) probably advanced] After adjusting the cams, re-set timing. Davew7

Thanks , definitely right
Do have a degree cam and a dial indicator
I will degree this engine and I will check all the little details thats it’s needed




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[gramacosport]

Hi
I did fix the problem
Timing, I was using distributor fix ignition, using 32 degrees.
Somehow at high RPM the time advance about 12 degrees.
Found the issue and installed a electromotive 60-2 spark system


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